.

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jamison Lahman <jamison@lahman.dev>

.github/actions/build-integration-image/action.yml

@@ -54,6 +54,7 @@ runs:
       shell: bash
       env:
         RUNS_ON_ECR_CACHE: ${{ inputs.runs-on-ecr-cache }}
+        INTEGRATION_REPOSITORY: ${{ inputs.runs-on-ecr-cache }}
         TAG: nightly-llm-it-${{ inputs.run-id }}
         CACHE_SUFFIX: ${{ steps.format-branch.outputs.cache-suffix }}
         HEAD_SHA: ${{ inputs.github-sha }}

.github/workflows/deployment.yml

@@ -426,8 +426,9 @@ jobs:
             ONYX_VERSION=${{ github.ref_name }}
             NODE_OPTIONS=--max-old-space-size=8192
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:web-cache-amd64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:edge
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:web-cache-amd64,mode=max
@@ -499,8 +500,9 @@ jobs:
             ONYX_VERSION=${{ github.ref_name }}
             NODE_OPTIONS=--max-old-space-size=8192
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:web-cache-arm64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:edge
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:web-cache-arm64,mode=max
@@ -646,8 +648,8 @@ jobs:
             NEXT_PUBLIC_INCLUDE_ERROR_POPUP_SUPPORT_LINK=true
             NODE_OPTIONS=--max-old-space-size=8192
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:cloudweb-cache-amd64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:cloudweb-cache-amd64,mode=max
@@ -728,8 +730,8 @@ jobs:
             NEXT_PUBLIC_INCLUDE_ERROR_POPUP_SUPPORT_LINK=true
             NODE_OPTIONS=--max-old-space-size=8192
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:cloudweb-cache-arm64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:cloudweb-cache-arm64,mode=max
@@ -862,8 +864,9 @@ jobs:
           build-args: |
             ONYX_VERSION=${{ github.ref_name }}
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-cache-amd64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:edge
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-cache-amd64,mode=max
@@ -934,8 +937,9 @@ jobs:
           build-args: |
             ONYX_VERSION=${{ github.ref_name }}
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-cache-arm64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:edge
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-cache-arm64,mode=max
@@ -1072,8 +1076,8 @@ jobs:
             ONYX_VERSION=${{ github.ref_name }}
             ENABLE_CRAFT=true
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-craft-cache-amd64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-craft-cache-amd64,mode=max
@@ -1145,8 +1149,8 @@ jobs:
             ONYX_VERSION=${{ github.ref_name }}
             ENABLE_CRAFT=true
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-craft-cache-arm64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:backend-craft-cache-arm64,mode=max
@@ -1287,8 +1291,9 @@ jobs:
           build-args: |
             ONYX_VERSION=${{ github.ref_name }}
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:model-server-cache-amd64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:edge
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:model-server-cache-amd64,mode=max
@@ -1366,8 +1371,9 @@ jobs:
           build-args: |
             ONYX_VERSION=${{ github.ref_name }}
           cache-from: |
-            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:model-server-cache-arm64
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:edge
+            type=registry,ref=${{ env.REGISTRY_IMAGE }}:latest
           cache-to: |
             type=inline
             type=registry,ref=${{ env.RUNS_ON_ECR_CACHE }}:model-server-cache-arm64,mode=max

.github/workflows/nightly-llm-provider-chat.yml

@@ -15,6 +15,9 @@ permissions:
 jobs:
   provider-chat-test:
     uses: ./.github/workflows/reusable-nightly-llm-provider-chat.yml
+    permissions:
+      contents: read
+      id-token: write
     with:
       openai_models: ${{ vars.NIGHTLY_LLM_OPENAI_MODELS }}
       anthropic_models: ${{ vars.NIGHTLY_LLM_ANTHROPIC_MODELS }}
@@ -25,16 +28,6 @@ jobs:
       ollama_models: ${{ vars.NIGHTLY_LLM_OLLAMA_MODELS }}
       openrouter_models: ${{ vars.NIGHTLY_LLM_OPENROUTER_MODELS }}
       strict: true
-    secrets:
-      openai_api_key: ${{ secrets.OPENAI_API_KEY }}
-      anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
-      bedrock_api_key: ${{ secrets.BEDROCK_API_KEY }}
-      vertex_ai_custom_config_json: ${{ secrets.NIGHTLY_LLM_VERTEX_AI_CUSTOM_CONFIG_JSON }}
-      azure_api_key: ${{ secrets.AZURE_API_KEY }}
-      ollama_api_key: ${{ secrets.OLLAMA_API_KEY }}
-      openrouter_api_key: ${{ secrets.OPENROUTER_API_KEY }}
-      DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
-      DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN }}
 
   notify-slack-on-failure:
     needs: [provider-chat-test]

.github/workflows/pr-external-dependency-unit-tests.yml

@@ -160,7 +160,7 @@ jobs:
           cd deployment/docker_compose
 
           # Get list of running containers
-          containers=$(docker compose -f docker-compose.yml -f docker-compose.dev.yml -f docker-compose.opensearch.yml ps -q)
+          containers=$(docker compose -f docker-compose.yml -f docker-compose.dev.yml ps -q)
 
           # Collect logs from each container
           for container in $containers; do

.github/workflows/pr-python-checks.yml

@@ -8,7 +8,7 @@ on:
   pull_request:
     branches:
       - main
-      - 'release/**'
+      - "release/**"
   push:
     tags:
       - "v*.*.*"
@@ -21,7 +21,13 @@ jobs:
     # See https://runs-on.com/runners/linux/
     # Note: Mypy seems quite optimized for x64 compared to arm64.
     # Similarly, mypy is single-threaded and incremental, so 2cpu is sufficient.
-    runs-on: [runs-on, runner=2cpu-linux-x64, "run-id=${{ github.run_id }}-mypy-check", "extras=s3-cache"]
+    runs-on:
+      [
+        runs-on,
+        runner=2cpu-linux-x64,
+        "run-id=${{ github.run_id }}-mypy-check",
+        "extras=s3-cache",
+      ]
     timeout-minutes: 45
 
     steps:
@@ -52,21 +58,14 @@ jobs:
         if: ${{ vars.DISABLE_MYPY_CACHE != 'true' }}
         uses: runs-on/cache@50350ad4242587b6c8c2baa2e740b1bc11285ff4 # ratchet:runs-on/cache@v4
         with:
-          path: backend/.mypy_cache
-          key: mypy-${{ runner.os }}-${{ github.base_ref || github.event.merge_group.base_ref || 'main' }}-${{ hashFiles('**/*.py', '**/*.pyi', 'backend/pyproject.toml') }}
+          path: .mypy_cache
+          key: mypy-${{ runner.os }}-${{ github.base_ref || github.event.merge_group.base_ref || 'main' }}-${{ hashFiles('**/*.py', '**/*.pyi', 'pyproject.toml') }}
           restore-keys: |
             mypy-${{ runner.os }}-${{ github.base_ref || github.event.merge_group.base_ref || 'main' }}-
             mypy-${{ runner.os }}-
 
       - name: Run MyPy
-        working-directory: ./backend
         env:
           MYPY_FORCE_COLOR: 1
           TERM: xterm-256color
         run: mypy .
-
-      - name: Run MyPy (tools/)
-        env:
-          MYPY_FORCE_COLOR: 1
-          TERM: xterm-256color
-        run: mypy tools/

.github/workflows/reusable-nightly-llm-provider-chat.yml

@@ -48,28 +48,10 @@ on:
         required: false
         default: true
         type: boolean
-    secrets:
-      openai_api_key:
-        required: false
-      anthropic_api_key:
-        required: false
-      bedrock_api_key:
-        required: false
-      vertex_ai_custom_config_json:
-        required: false
-      azure_api_key:
-        required: false
-      ollama_api_key:
-        required: false
-      openrouter_api_key:
-        required: false
-      DOCKER_USERNAME:
-        required: true
-      DOCKER_TOKEN:
-        required: true
 
 permissions:
   contents: read
+  id-token: write
 
 jobs:
   build-backend-image:
@@ -81,6 +63,7 @@ jobs:
         "extras=ecr-cache",
       ]
     timeout-minutes: 45
+    environment: ci-protected
     steps:
       - uses: runs-on/action@cd2b598b0515d39d78c38a02d529db87d2196d1e # ratchet:runs-on/action@v2
 
@@ -89,6 +72,19 @@ jobs:
         with:
           persist-credentials: false
 
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@61815dcd50bd041e203e49132bacad1fd04d2708
+        with:
+          role-to-assume: ${{ secrets.AWS_OIDC_ROLE_ARN }}
+          aws-region: us-east-2
+
+      - name: Get AWS Secrets
+        uses: aws-actions/aws-secretsmanager-get-secrets@a9a7eb4e2f2871d30dc5b892576fde60a2ecc802
+        with:
+          secret-ids: |
+            DOCKER_USERNAME, test/docker-username
+            DOCKER_TOKEN, test/docker-token
+
       - name: Build backend image
         uses: ./.github/actions/build-backend-image
         with:
@@ -97,8 +93,8 @@ jobs:
           pr-number: ${{ github.event.pull_request.number }}
           github-sha: ${{ github.sha }}
           run-id: ${{ github.run_id }}
-          docker-username: ${{ secrets.DOCKER_USERNAME }}
-          docker-token: ${{ secrets.DOCKER_TOKEN }}
+          docker-username: ${{ env.DOCKER_USERNAME }}
+          docker-token: ${{ env.DOCKER_TOKEN }}
           docker-no-cache: ${{ vars.DOCKER_NO_CACHE == 'true' && 'true' || 'false' }}
 
   build-model-server-image:
@@ -110,6 +106,7 @@ jobs:
         "extras=ecr-cache",
       ]
     timeout-minutes: 45
+    environment: ci-protected
     steps:
       - uses: runs-on/action@cd2b598b0515d39d78c38a02d529db87d2196d1e # ratchet:runs-on/action@v2
 
@@ -118,6 +115,19 @@ jobs:
         with:
           persist-credentials: false
 
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@61815dcd50bd041e203e49132bacad1fd04d2708
+        with:
+          role-to-assume: ${{ secrets.AWS_OIDC_ROLE_ARN }}
+          aws-region: us-east-2
+
+      - name: Get AWS Secrets
+        uses: aws-actions/aws-secretsmanager-get-secrets@a9a7eb4e2f2871d30dc5b892576fde60a2ecc802
+        with:
+          secret-ids: |
+            DOCKER_USERNAME, test/docker-username
+            DOCKER_TOKEN, test/docker-token
+
       - name: Build model server image
         uses: ./.github/actions/build-model-server-image
         with:
@@ -126,8 +136,8 @@ jobs:
           pr-number: ${{ github.event.pull_request.number }}
           github-sha: ${{ github.sha }}
           run-id: ${{ github.run_id }}
-          docker-username: ${{ secrets.DOCKER_USERNAME }}
-          docker-token: ${{ secrets.DOCKER_TOKEN }}
+          docker-username: ${{ env.DOCKER_USERNAME }}
+          docker-token: ${{ env.DOCKER_TOKEN }}
 
   build-integration-image:
     runs-on:
@@ -138,6 +148,7 @@ jobs:
         "extras=ecr-cache",
       ]
     timeout-minutes: 45
+    environment: ci-protected
     steps:
       - uses: runs-on/action@cd2b598b0515d39d78c38a02d529db87d2196d1e # ratchet:runs-on/action@v2
 
@@ -146,6 +157,19 @@ jobs:
         with:
           persist-credentials: false
 
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@61815dcd50bd041e203e49132bacad1fd04d2708
+        with:
+          role-to-assume: ${{ secrets.AWS_OIDC_ROLE_ARN }}
+          aws-region: us-east-2
+
+      - name: Get AWS Secrets
+        uses: aws-actions/aws-secretsmanager-get-secrets@a9a7eb4e2f2871d30dc5b892576fde60a2ecc802
+        with:
+          secret-ids: |
+            DOCKER_USERNAME, test/docker-username
+            DOCKER_TOKEN, test/docker-token
+
       - name: Build integration image
         uses: ./.github/actions/build-integration-image
         with:
@@ -154,8 +178,8 @@ jobs:
           pr-number: ${{ github.event.pull_request.number }}
           github-sha: ${{ github.sha }}
           run-id: ${{ github.run_id }}
-          docker-username: ${{ secrets.DOCKER_USERNAME }}
-          docker-token: ${{ secrets.DOCKER_TOKEN }}
+          docker-username: ${{ env.DOCKER_USERNAME }}
+          docker-token: ${{ env.DOCKER_TOKEN }}
 
   provider-chat-test:
     needs:
@@ -170,56 +194,56 @@ jobs:
         include:
           - provider: openai
             models: ${{ inputs.openai_models }}
-            api_key_secret: openai_api_key
-            custom_config_secret: ""
+            api_key_env: OPENAI_API_KEY
+            custom_config_env: ""
             api_base: ""
             api_version: ""
             deployment_name: ""
             required: true
           - provider: anthropic
             models: ${{ inputs.anthropic_models }}
-            api_key_secret: anthropic_api_key
-            custom_config_secret: ""
+            api_key_env: ANTHROPIC_API_KEY
+            custom_config_env: ""
             api_base: ""
             api_version: ""
             deployment_name: ""
             required: true
           - provider: bedrock
             models: ${{ inputs.bedrock_models }}
-            api_key_secret: bedrock_api_key
-            custom_config_secret: ""
+            api_key_env: BEDROCK_API_KEY
+            custom_config_env: ""
             api_base: ""
             api_version: ""
             deployment_name: ""
             required: false
           - provider: vertex_ai
             models: ${{ inputs.vertex_ai_models }}
-            api_key_secret: ""
-            custom_config_secret: vertex_ai_custom_config_json
+            api_key_env: ""
+            custom_config_env: NIGHTLY_LLM_VERTEX_AI_CUSTOM_CONFIG_JSON
             api_base: ""
             api_version: ""
             deployment_name: ""
             required: false
           - provider: azure
             models: ${{ inputs.azure_models }}
-            api_key_secret: azure_api_key
-            custom_config_secret: ""
+            api_key_env: AZURE_API_KEY
+            custom_config_env: ""
             api_base: ${{ inputs.azure_api_base }}
             api_version: "2025-04-01-preview"
             deployment_name: ""
             required: false
           - provider: ollama_chat
             models: ${{ inputs.ollama_models }}
-            api_key_secret: ollama_api_key
-            custom_config_secret: ""
+            api_key_env: OLLAMA_API_KEY
+            custom_config_env: ""
             api_base: "https://ollama.com"
             api_version: ""
             deployment_name: ""
             required: false
           - provider: openrouter
             models: ${{ inputs.openrouter_models }}
-            api_key_secret: openrouter_api_key
-            custom_config_secret: ""
+            api_key_env: OPENROUTER_API_KEY
+            custom_config_env: ""
             api_base: "https://openrouter.ai/api/v1"
             api_version: ""
             deployment_name: ""
@@ -230,6 +254,7 @@ jobs:
       - "run-id=${{ github.run_id }}-nightly-${{ matrix.provider }}-provider-chat-test"
       - extras=ecr-cache
     timeout-minutes: 45
+    environment: ci-protected
     steps:
       - uses: runs-on/action@cd2b598b0515d39d78c38a02d529db87d2196d1e # ratchet:runs-on/action@v2
 
@@ -238,21 +263,43 @@ jobs:
         with:
           persist-credentials: false
 
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@61815dcd50bd041e203e49132bacad1fd04d2708
+        with:
+          role-to-assume: ${{ secrets.AWS_OIDC_ROLE_ARN }}
+          aws-region: us-east-2
+
+      - name: Get AWS Secrets
+        uses: aws-actions/aws-secretsmanager-get-secrets@a9a7eb4e2f2871d30dc5b892576fde60a2ecc802
+        with:
+          # Keep JSON values unparsed so vertex custom config is passed as raw JSON.
+          parse-json-secrets: false
+          secret-ids: |
+            DOCKER_USERNAME, test/docker-username
+            DOCKER_TOKEN, test/docker-token
+            OPENAI_API_KEY, test/openai-api-key
+            ANTHROPIC_API_KEY, test/anthropic-api-key
+            BEDROCK_API_KEY, test/bedrock-api-key
+            NIGHTLY_LLM_VERTEX_AI_CUSTOM_CONFIG_JSON, test/nightly-llm-vertex-ai-custom-config-json
+            AZURE_API_KEY, test/azure-api-key
+            OLLAMA_API_KEY, test/ollama-api-key
+            OPENROUTER_API_KEY, test/openrouter-api-key
+
       - name: Run nightly provider chat test
         uses: ./.github/actions/run-nightly-provider-chat-test
         with:
           provider: ${{ matrix.provider }}
           models: ${{ matrix.models }}
-          provider-api-key: ${{ matrix.api_key_secret && secrets[matrix.api_key_secret] || '' }}
+          provider-api-key: ${{ matrix.api_key_env && env[matrix.api_key_env] || '' }}
           strict: ${{ inputs.strict && 'true' || 'false' }}
           api-base: ${{ matrix.api_base }}
           api-version: ${{ matrix.api_version }}
           deployment-name: ${{ matrix.deployment_name }}
-          custom-config-json: ${{ matrix.custom_config_secret && secrets[matrix.custom_config_secret] || '' }}
+          custom-config-json: ${{ matrix.custom_config_env && env[matrix.custom_config_env] || '' }}
           runs-on-ecr-cache: ${{ env.RUNS_ON_ECR_CACHE }}
           run-id: ${{ github.run_id }}
-          docker-username: ${{ secrets.DOCKER_USERNAME }}
-          docker-token: ${{ secrets.DOCKER_TOKEN }}
+          docker-username: ${{ env.DOCKER_USERNAME }}
+          docker-token: ${{ env.DOCKER_TOKEN }}
 
       - name: Dump API server logs
         if: always()

backend/alembic/versions/2664261bfaab_add_cache_store_table.py

@@ -0,0 +1,37 @@
+"""add cache_store table
+
+Revision ID: 2664261bfaab
+Revises: 4a1e4b1c89d2
+Create Date: 2026-02-27 00:00:00.000000
+
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = "2664261bfaab"
+down_revision = "4a1e4b1c89d2"
+branch_labels: None = None
+depends_on: None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "cache_store",
+        sa.Column("key", sa.String(), nullable=False),
+        sa.Column("value", sa.LargeBinary(), nullable=True),
+        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("key"),
+    )
+    op.create_index(
+        "ix_cache_store_expires",
+        "cache_store",
+        ["expires_at"],
+        postgresql_where=sa.text("expires_at IS NOT NULL"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_cache_store_expires", table_name="cache_store")
+    op.drop_table("cache_store")

backend/alembic/versions/4a1e4b1c89d2_add_indexing_to_userfilestatus.py

@@ -0,0 +1,51 @@
+"""Add INDEXING to UserFileStatus
+
+Revision ID: 4a1e4b1c89d2
+Revises: 6b3b4083c5aa
+Create Date: 2026-02-28 00:00:00.000000
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "4a1e4b1c89d2"
+down_revision = "6b3b4083c5aa"
+branch_labels = None
+depends_on = None
+
+TABLE = "user_file"
+COLUMN = "status"
+CONSTRAINT_NAME = "ck_user_file_status"
+
+OLD_VALUES = ("PROCESSING", "COMPLETED", "FAILED", "CANCELED", "DELETING")
+NEW_VALUES = ("PROCESSING", "INDEXING", "COMPLETED", "FAILED", "CANCELED", "DELETING")
+
+
+def _drop_status_check_constraint() -> None:
+    """Drop the existing CHECK constraint on user_file.status.
+
+    The constraint name is auto-generated by SQLAlchemy and unknown,
+    so we look it up via the inspector.
+    """
+    inspector = sa.inspect(op.get_bind())
+    for constraint in inspector.get_check_constraints(TABLE):
+        if COLUMN in constraint.get("sqltext", ""):
+            constraint_name = constraint["name"]
+            if constraint_name is not None:
+                op.drop_constraint(constraint_name, TABLE, type_="check")
+
+
+def upgrade() -> None:
+    _drop_status_check_constraint()
+    in_clause = ", ".join(f"'{v}'" for v in NEW_VALUES)
+    op.create_check_constraint(CONSTRAINT_NAME, TABLE, f"{COLUMN} IN ({in_clause})")
+
+
+def downgrade() -> None:
+    op.execute(
+        f"UPDATE {TABLE} SET {COLUMN} = 'PROCESSING' WHERE {COLUMN} = 'INDEXING'"
+    )
+    op.drop_constraint(CONSTRAINT_NAME, TABLE, type_="check")
+    in_clause = ", ".join(f"'{v}'" for v in OLD_VALUES)
+    op.create_check_constraint(CONSTRAINT_NAME, TABLE, f"{COLUMN} IN ({in_clause})")

backend/alembic/versions/6b3b4083c5aa_persona_cleanup_and_featured.py

@@ -0,0 +1,112 @@
+"""persona cleanup and featured
+
+Revision ID: 6b3b4083c5aa
+Revises: 57122d037335
+Create Date: 2026-02-26 12:00:00.000000
+
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "6b3b4083c5aa"
+down_revision = "57122d037335"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Add featured column with nullable=True first
+    op.add_column("persona", sa.Column("featured", sa.Boolean(), nullable=True))
+
+    # Migrate data from is_default_persona to featured
+    op.execute("UPDATE persona SET featured = is_default_persona")
+
+    # Make featured non-nullable with default=False
+    op.alter_column(
+        "persona",
+        "featured",
+        existing_type=sa.Boolean(),
+        nullable=False,
+        server_default=sa.false(),
+    )
+
+    # Drop is_default_persona column
+    op.drop_column("persona", "is_default_persona")
+
+    # Drop unused columns
+    op.drop_column("persona", "num_chunks")
+    op.drop_column("persona", "chunks_above")
+    op.drop_column("persona", "chunks_below")
+    op.drop_column("persona", "llm_relevance_filter")
+    op.drop_column("persona", "llm_filter_extraction")
+    op.drop_column("persona", "recency_bias")
+
+
+def downgrade() -> None:
+    # Add back recency_bias column
+    op.add_column(
+        "persona",
+        sa.Column(
+            "recency_bias",
+            sa.VARCHAR(),
+            nullable=False,
+            server_default="base_decay",
+        ),
+    )
+
+    # Add back llm_filter_extraction column
+    op.add_column(
+        "persona",
+        sa.Column(
+            "llm_filter_extraction",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+
+    # Add back llm_relevance_filter column
+    op.add_column(
+        "persona",
+        sa.Column(
+            "llm_relevance_filter",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+
+    # Add back chunks_below column
+    op.add_column(
+        "persona",
+        sa.Column("chunks_below", sa.Integer(), nullable=False, server_default="0"),
+    )
+
+    # Add back chunks_above column
+    op.add_column(
+        "persona",
+        sa.Column("chunks_above", sa.Integer(), nullable=False, server_default="0"),
+    )
+
+    # Add back num_chunks column
+    op.add_column("persona", sa.Column("num_chunks", sa.Float(), nullable=True))
+
+    # Add back is_default_persona column
+    op.add_column(
+        "persona",
+        sa.Column(
+            "is_default_persona",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+
+    # Migrate data from featured to is_default_persona
+    op.execute("UPDATE persona SET is_default_persona = featured")
+
+    # Drop featured column
+    op.drop_column("persona", "featured")

backend/alembic/versions/a3b8d9e2f1c4_make_scim_external_id_nullable.py

@@ -0,0 +1,34 @@
+"""make scim_user_mapping.external_id nullable
+
+Revision ID: a3b8d9e2f1c4
+Revises: 2664261bfaab
+Create Date: 2026-03-02
+
+"""
+
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision = "a3b8d9e2f1c4"
+down_revision = "2664261bfaab"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.alter_column(
+        "scim_user_mapping",
+        "external_id",
+        nullable=True,
+    )
+
+
+def downgrade() -> None:
+    # Delete any rows where external_id is NULL before re-applying NOT NULL
+    op.execute("DELETE FROM scim_user_mapping WHERE external_id IS NULL")
+    op.alter_column(
+        "scim_user_mapping",
+        "external_id",
+        nullable=False,
+    )

backend/ee/onyx/db/scim.py

@@ -126,12 +126,16 @@ class ScimDAL(DAL):
 
     def create_user_mapping(
         self,
-        external_id: str,
+        external_id: str | None,
         user_id: UUID,
         scim_username: str | None = None,
         fields: ScimMappingFields | None = None,
     ) -> ScimUserMapping:
-        """Create a mapping between a SCIM externalId and an Onyx user."""
+        """Create a SCIM mapping for a user.
+
+        ``external_id`` may be ``None`` when the IdP omits it (RFC 7643
+        allows this). The mapping still marks the user as SCIM-managed.
+        """
         f = fields or ScimMappingFields()
         mapping = ScimUserMapping(
             external_id=external_id,
@@ -270,8 +274,13 @@ class ScimDAL(DAL):
         Raises:
             ValueError: If the filter uses an unsupported attribute.
         """
-        query = select(User).where(
-            User.role.notin_([UserRole.SLACK_USER, UserRole.EXT_PERM_USER])
+        # Inner-join with ScimUserMapping so only SCIM-managed users appear.
+        # Pre-existing system accounts (anonymous, admin, etc.) are excluded
+        # unless they were explicitly linked via SCIM provisioning.
+        query = (
+            select(User)
+            .join(ScimUserMapping, ScimUserMapping.user_id == User.id)
+            .where(User.role.notin_([UserRole.SLACK_USER, UserRole.EXT_PERM_USER]))
         )
 
         if scim_filter:
@@ -321,34 +330,37 @@ class ScimDAL(DAL):
         scim_username: str | None = None,
         fields: ScimMappingFields | None = None,
     ) -> None:
-        """Create, update, or delete the external ID mapping for a user.
+        """Sync the SCIM mapping for a user.
+
+        If a mapping already exists, its fields are updated (including
+        setting ``external_id`` to ``None`` when the IdP omits it).
+        If no mapping exists and ``new_external_id`` is provided, a new
+        mapping is created.  A mapping is never deleted here — SCIM-managed
+        users must retain their mapping to remain visible in ``GET /Users``.
 
         When *fields* is provided, all mapping fields are written
         unconditionally — including ``None`` values — so that a caller can
         clear a previously-set field (e.g. removing a department).
         """
         mapping = self.get_user_mapping_by_user_id(user_id)
-        if new_external_id:
-            if mapping:
-                if mapping.external_id != new_external_id:
-                    mapping.external_id = new_external_id
-                if scim_username is not None:
-                    mapping.scim_username = scim_username
-                if fields is not None:
-                    mapping.department = fields.department
-                    mapping.manager = fields.manager
-                    mapping.given_name = fields.given_name
-                    mapping.family_name = fields.family_name
-                    mapping.scim_emails_json = fields.scim_emails_json
-            else:
-                self.create_user_mapping(
-                    external_id=new_external_id,
-                    user_id=user_id,
-                    scim_username=scim_username,
-                    fields=fields,
-                )
-        elif mapping:
-            self.delete_user_mapping(mapping.id)
+        if mapping:
+            if mapping.external_id != new_external_id:
+                mapping.external_id = new_external_id
+            if scim_username is not None:
+                mapping.scim_username = scim_username
+            if fields is not None:
+                mapping.department = fields.department
+                mapping.manager = fields.manager
+                mapping.given_name = fields.given_name
+                mapping.family_name = fields.family_name
+                mapping.scim_emails_json = fields.scim_emails_json
+        elif new_external_id:
+            self.create_user_mapping(
+                external_id=new_external_id,
+                user_id=user_id,
+                scim_username=scim_username,
+                fields=fields,
+            )
 
     def _get_user_mappings_batch(
         self, user_ids: list[UUID]

backend/ee/onyx/main.py

@@ -31,6 +31,7 @@ from ee.onyx.server.query_and_chat.query_backend import (
 from ee.onyx.server.query_and_chat.search_backend import router as search_router
 from ee.onyx.server.query_history.api import router as query_history_router
 from ee.onyx.server.reporting.usage_export_api import router as usage_export_router
+from ee.onyx.server.scim.api import register_scim_exception_handlers
 from ee.onyx.server.scim.api import scim_router
 from ee.onyx.server.seeding import seed_db
 from ee.onyx.server.tenants.api import router as tenants_router
@@ -167,6 +168,7 @@ def get_application() -> FastAPI:
     # they use their own SCIM bearer token auth).
     # Not behind APP_API_PREFIX because IdPs expect /scim/v2/... directly.
     application.include_router(scim_router)
+    register_scim_exception_handlers(application)
 
     # Ensure all routes have auth enabled or are explicitly marked as public
     check_ee_router_auth(application)

backend/ee/onyx/server/scim/api.py

@@ -15,7 +15,9 @@ from uuid import UUID
 
 from fastapi import APIRouter
 from fastapi import Depends
+from fastapi import FastAPI
 from fastapi import Query
+from fastapi import Request
 from fastapi import Response
 from fastapi.responses import JSONResponse
 from fastapi_users.password import PasswordHelper
@@ -24,6 +26,7 @@ from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
 from ee.onyx.db.scim import ScimDAL
+from ee.onyx.server.scim.auth import ScimAuthError
 from ee.onyx.server.scim.auth import verify_scim_token
 from ee.onyx.server.scim.filtering import parse_scim_filter
 from ee.onyx.server.scim.models import SCIM_LIST_RESPONSE_SCHEMA
@@ -77,6 +80,22 @@ scim_router = APIRouter(prefix="/scim/v2", tags=["SCIM"])
 _pw_helper = PasswordHelper()
 
 
+def register_scim_exception_handlers(app: FastAPI) -> None:
+    """Register SCIM-specific exception handlers on the FastAPI app.
+
+    Call this after ``app.include_router(scim_router)`` so that auth
+    failures from ``verify_scim_token`` return RFC 7644 §3.12 error
+    envelopes (with ``schemas`` and ``status`` fields) instead of
+    FastAPI's default ``{"detail": "..."}`` format.
+    """
+
+    @app.exception_handler(ScimAuthError)
+    async def _handle_scim_auth_error(
+        _request: Request, exc: ScimAuthError
+    ) -> ScimJSONResponse:
+        return _scim_error_response(exc.status_code, exc.detail)
+
+
 def _get_provider(
     _token: ScimToken = Depends(verify_scim_token),
 ) -> ScimProvider:
@@ -404,21 +423,63 @@ def create_user(
 
     email = user_resource.userName.strip()
 
-    # externalId is how the IdP correlates this user on subsequent requests.
-    # Without it, the IdP can't find the user and will try to re-create,
-    # hitting a 409 conflict — so we require it up front.
-    if not user_resource.externalId:
-        return _scim_error_response(400, "externalId is required")
+    # Check for existing user — if they exist but aren't SCIM-managed yet,
+    # link them to the IdP rather than rejecting with 409.
+    external_id: str | None = user_resource.externalId
+    scim_username: str = user_resource.userName.strip()
+    fields: ScimMappingFields = _fields_from_resource(user_resource)
 
-    # Enforce seat limit
+    existing_user = dal.get_user_by_email(email)
+    if existing_user:
+        existing_mapping = dal.get_user_mapping_by_user_id(existing_user.id)
+        if existing_mapping:
+            return _scim_error_response(409, f"User with email {email} already exists")
+
+        # Adopt pre-existing user into SCIM management.
+        # Reactivating a deactivated user consumes a seat, so enforce the
+        # seat limit the same way replace_user does.
+        if user_resource.active and not existing_user.is_active:
+            seat_error = _check_seat_availability(dal)
+            if seat_error:
+                return _scim_error_response(403, seat_error)
+
+        personal_name = _scim_name_to_str(user_resource.name)
+        dal.update_user(
+            existing_user,
+            is_active=user_resource.active,
+            **({"personal_name": personal_name} if personal_name else {}),
+        )
+
+        try:
+            dal.create_user_mapping(
+                external_id=external_id,
+                user_id=existing_user.id,
+                scim_username=scim_username,
+                fields=fields,
+            )
+            dal.commit()
+        except IntegrityError:
+            dal.rollback()
+            return _scim_error_response(
+                409, f"User with email {email} already has a SCIM mapping"
+            )
+
+        return _scim_resource_response(
+            provider.build_user_resource(
+                existing_user,
+                external_id,
+                scim_username=scim_username,
+                fields=fields,
+            ),
+            status_code=201,
+        )
+
+    # Only enforce seat limit for net-new users — adopting a pre-existing
+    # user doesn't consume a new seat.
     seat_error = _check_seat_availability(dal)
     if seat_error:
         return _scim_error_response(403, seat_error)
 
-    # Check for existing user
-    if dal.get_user_by_email(email):
-        return _scim_error_response(409, f"User with email {email} already exists")
-
     # Create user with a random password (SCIM users authenticate via IdP)
     personal_name = _scim_name_to_str(user_resource.name)
     user = User(
@@ -436,18 +497,21 @@ def create_user(
         dal.rollback()
         return _scim_error_response(409, f"User with email {email} already exists")
 
-    # Create SCIM mapping (externalId is validated above, always present)
-    external_id = user_resource.externalId
-    scim_username = user_resource.userName.strip()
-    fields = _fields_from_resource(user_resource)
-    dal.create_user_mapping(
-        external_id=external_id,
-        user_id=user.id,
-        scim_username=scim_username,
-        fields=fields,
-    )
-
-    dal.commit()
+    # Always create a SCIM mapping so that the user is marked as
+    # SCIM-managed. externalId may be None (RFC 7643 says it's optional).
+    try:
+        dal.create_user_mapping(
+            external_id=external_id,
+            user_id=user.id,
+            scim_username=scim_username,
+            fields=fields,
+        )
+        dal.commit()
+    except IntegrityError:
+        dal.rollback()
+        return _scim_error_response(
+            409, f"User with email {email} already has a SCIM mapping"
+        )
 
     return _scim_resource_response(
         provider.build_user_resource(

backend/ee/onyx/server/scim/auth.py

@@ -19,7 +19,6 @@ import hashlib
 import secrets
 
 from fastapi import Depends
-from fastapi import HTTPException
 from fastapi import Request
 from sqlalchemy.orm import Session
 
@@ -28,6 +27,21 @@ from onyx.auth.utils import get_hashed_bearer_token_from_request
 from onyx.db.engine.sql_engine import get_session
 from onyx.db.models import ScimToken
 
+
+class ScimAuthError(Exception):
+    """Raised when SCIM bearer token authentication fails.
+
+    Unlike HTTPException, this carries the status and detail so the SCIM
+    exception handler can wrap them in an RFC 7644 §3.12 error envelope
+    with ``schemas`` and ``status`` fields.
+    """
+
+    def __init__(self, status_code: int, detail: str) -> None:
+        self.status_code = status_code
+        self.detail = detail
+        super().__init__(detail)
+
+
 SCIM_TOKEN_PREFIX = "onyx_scim_"
 SCIM_TOKEN_LENGTH = 48
 
@@ -82,23 +96,14 @@ def verify_scim_token(
     """
     hashed = _get_hashed_scim_token_from_request(request)
     if not hashed:
-        raise HTTPException(
-            status_code=401,
-            detail="Missing or invalid SCIM bearer token",
-        )
+        raise ScimAuthError(401, "Missing or invalid SCIM bearer token")
 
     token = dal.get_token_by_hash(hashed)
 
     if not token:
-        raise HTTPException(
-            status_code=401,
-            detail="Invalid SCIM bearer token",
-        )
+        raise ScimAuthError(401, "Invalid SCIM bearer token")
 
     if not token.is_active:
-        raise HTTPException(
-            status_code=401,
-            detail="SCIM token has been revoked",
-        )
+        raise ScimAuthError(401, "SCIM token has been revoked")
 
     return token

backend/ee/onyx/server/scim/providers/base.py

@@ -153,26 +153,31 @@ class ScimProvider(ABC):
         self,
         user: User,
         fields: ScimMappingFields,
-    ) -> ScimName | None:
+    ) -> ScimName:
         """Build SCIM name components for the response.
 
         Round-trips stored ``given_name``/``family_name`` when available (so
         the IdP gets back what it sent). Falls back to splitting
         ``personal_name`` for users provisioned before we stored components.
+        Always returns a ScimName — Okta's spec tests expect ``name``
+        (with ``givenName``/``familyName``) on every user resource.
         Providers may override for custom behavior.
         """
         if fields.given_name is not None or fields.family_name is not None:
             return ScimName(
-                givenName=fields.given_name,
-                familyName=fields.family_name,
-                formatted=user.personal_name,
+                givenName=fields.given_name or "",
+                familyName=fields.family_name or "",
+                formatted=user.personal_name or "",
             )
         if not user.personal_name:
-            return None
+            # Derive a reasonable name from the email so that SCIM spec tests
+            # see non-empty givenName / familyName for every user resource.
+            local = user.email.split("@")[0] if user.email else ""
+            return ScimName(givenName=local, familyName="", formatted=local)
         parts = user.personal_name.split(" ", 1)
         return ScimName(
             givenName=parts[0],
-            familyName=parts[1] if len(parts) > 1 else None,
+            familyName=parts[1] if len(parts) > 1 else "",
             formatted=user.personal_name,
         )
 

backend/ee/onyx/server/seeding.py

@@ -18,7 +18,6 @@ from ee.onyx.server.enterprise_settings.store import (
     store_settings as store_ee_settings,
 )
 from ee.onyx.server.enterprise_settings.store import upload_logo
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.engine.sql_engine import get_session_with_current_tenant
 from onyx.db.llm import fetch_existing_llm_provider
 from onyx.db.llm import update_default_provider
@@ -161,12 +160,6 @@ def _seed_personas(db_session: Session, personas: list[PersonaUpsertRequest]) ->
                     user=None,  # Seeding is done as admin
                     name=persona.name,
                     description=persona.description,
-                    num_chunks=(
-                        persona.num_chunks if persona.num_chunks is not None else 0.0
-                    ),
-                    llm_relevance_filter=persona.llm_relevance_filter,
-                    llm_filter_extraction=persona.llm_filter_extraction,
-                    recency_bias=RecencyBiasSetting.AUTO,
                     document_set_ids=persona.document_set_ids,
                     llm_model_provider_override=persona.llm_model_provider_override,
                     llm_model_version_override=persona.llm_model_version_override,
@@ -178,6 +171,7 @@ def _seed_personas(db_session: Session, personas: list[PersonaUpsertRequest]) ->
                     system_prompt=persona.system_prompt,
                     task_prompt=persona.task_prompt,
                     datetime_aware=persona.datetime_aware,
+                    featured=persona.featured,
                     commit=False,
                 )
             db_session.commit()

backend/onyx/auth/users.py

@@ -543,7 +543,7 @@ class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
         result = await db_session.execute(
             select(Persona.id)
             .where(
-                Persona.is_default_persona.is_(True),
+                Persona.featured.is_(True),
                 Persona.is_public.is_(True),
                 Persona.is_visible.is_(True),
                 Persona.deleted.is_(False),
@@ -725,11 +725,19 @@ class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
                         if user_by_session:
                             user = user_by_session
 
+                # If the user is inactive, check seat availability before
+                # upgrading role — otherwise they'd become an inactive BASIC
+                # user who still can't log in.
+                if not user.is_active:
+                    with get_session_with_current_tenant() as sync_db:
+                        enforce_seat_limit(sync_db)
+
                 await self.user_db.update(
                     user,
                     {
                         "is_verified": is_verified_by_default,
                         "role": UserRole.BASIC,
+                        **({"is_active": True} if not user.is_active else {}),
                     },
                 )
 

backend/onyx/background/celery/tasks/beat_schedule.py

@@ -241,8 +241,7 @@ _VECTOR_DB_BEAT_TASK_NAMES: set[str] = {
     "check-for-index-attempt-cleanup",
     "check-for-doc-permissions-sync",
     "check-for-external-group-sync",
-    "check-for-documents-for-opensearch-migration",
-    "migrate-documents-from-vespa-to-opensearch",
+    "migrate-chunks-from-vespa-to-opensearch",
 }
 
 if DISABLE_VECTOR_DB:

backend/onyx/background/celery/tasks/user_file_processing/tasks.py

@@ -414,34 +414,31 @@ def _process_user_file_with_indexing(
         raise RuntimeError(f"Indexing pipeline failed for user file {user_file_id}")
 
 
-@shared_task(
-    name=OnyxCeleryTask.PROCESS_SINGLE_USER_FILE,
-    bind=True,
-    ignore_result=True,
-)
-def process_single_user_file(
-    self: Task, *, user_file_id: str, tenant_id: str  # noqa: ARG001
+def process_user_file_impl(
+    *, user_file_id: str, tenant_id: str, redis_locking: bool
 ) -> None:
-    task_logger.info(f"process_single_user_file - Starting id={user_file_id}")
+    """Core implementation for processing a single user file.
+
+    When redis_locking=True, acquires a per-file Redis lock and clears the
+    queued-key guard (Celery path).  When redis_locking=False, skips all Redis
+    operations (BackgroundTask path).
+    """
+    task_logger.info(f"process_user_file_impl - Starting id={user_file_id}")
     start = time.monotonic()
 
-    redis_client = get_redis_client(tenant_id=tenant_id)
-
-    # Clear the "queued" guard set by the beat generator so that the next beat
-    # cycle can re-enqueue this file if it is still in PROCESSING state after
-    # this task completes or fails.
-    redis_client.delete(_user_file_queued_key(user_file_id))
-
-    file_lock: RedisLock = redis_client.lock(
-        _user_file_lock_key(user_file_id),
-        timeout=CELERY_USER_FILE_PROCESSING_LOCK_TIMEOUT,
-    )
-
-    if not file_lock.acquire(blocking=False):
-        task_logger.info(
-            f"process_single_user_file - Lock held, skipping user_file_id={user_file_id}"
+    file_lock: RedisLock | None = None
+    if redis_locking:
+        redis_client = get_redis_client(tenant_id=tenant_id)
+        redis_client.delete(_user_file_queued_key(user_file_id))
+        file_lock = redis_client.lock(
+            _user_file_lock_key(user_file_id),
+            timeout=CELERY_USER_FILE_PROCESSING_LOCK_TIMEOUT,
         )
-        return None
+        if file_lock is not None and not file_lock.acquire(blocking=False):
+            task_logger.info(
+                f"process_user_file_impl - Lock held, skipping user_file_id={user_file_id}"
+            )
+            return
 
     documents: list[Document] = []
     try:
@@ -449,15 +446,18 @@ def process_single_user_file(
             uf = db_session.get(UserFile, _as_uuid(user_file_id))
             if not uf:
                 task_logger.warning(
-                    f"process_single_user_file - UserFile not found id={user_file_id}"
+                    f"process_user_file_impl - UserFile not found id={user_file_id}"
                 )
-                return None
+                return
 
-            if uf.status != UserFileStatus.PROCESSING:
+            if uf.status not in (
+                UserFileStatus.PROCESSING,
+                UserFileStatus.INDEXING,
+            ):
                 task_logger.info(
-                    f"process_single_user_file - Skipping id={user_file_id} status={uf.status}"
+                    f"process_user_file_impl - Skipping id={user_file_id} status={uf.status}"
                 )
-                return None
+                return
 
             connector = LocalFileConnector(
                 file_locations=[uf.file_id],
@@ -471,7 +471,6 @@ def process_single_user_file(
                         [doc for doc in batch if not isinstance(doc, HierarchyNode)]
                     )
 
-                # update the document id to userfile id in the documents
                 for document in documents:
                     document.id = str(user_file_id)
                     document.source = DocumentSource.USER_FILE
@@ -493,9 +492,8 @@ def process_single_user_file(
 
             except Exception as e:
                 task_logger.exception(
-                    f"process_single_user_file - Error processing file id={user_file_id} - {e.__class__.__name__}"
+                    f"process_user_file_impl - Error processing file id={user_file_id} - {e.__class__.__name__}"
                 )
-                # don't update the status if the user file is being deleted
                 current_user_file = db_session.get(UserFile, _as_uuid(user_file_id))
                 if (
                     current_user_file
@@ -504,33 +502,43 @@ def process_single_user_file(
                     uf.status = UserFileStatus.FAILED
                     db_session.add(uf)
                     db_session.commit()
-                return None
+                return
 
         elapsed = time.monotonic() - start
         task_logger.info(
-            f"process_single_user_file - Finished id={user_file_id} docs={len(documents)} elapsed={elapsed:.2f}s"
+            f"process_user_file_impl - Finished id={user_file_id} docs={len(documents)} elapsed={elapsed:.2f}s"
         )
-        return None
     except Exception as e:
-        # Attempt to mark the file as failed
         with get_session_with_current_tenant() as db_session:
             uf = db_session.get(UserFile, _as_uuid(user_file_id))
             if uf:
-                # don't update the status if the user file is being deleted
                 if uf.status != UserFileStatus.DELETING:
                     uf.status = UserFileStatus.FAILED
                 db_session.add(uf)
                 db_session.commit()
 
         task_logger.exception(
-            f"process_single_user_file - Error processing file id={user_file_id} - {e.__class__.__name__}"
+            f"process_user_file_impl - Error processing file id={user_file_id} - {e.__class__.__name__}"
         )
-        return None
+        raise
     finally:
-        if file_lock.owned():
+        if file_lock is not None and file_lock.owned():
             file_lock.release()
 
 
+@shared_task(
+    name=OnyxCeleryTask.PROCESS_SINGLE_USER_FILE,
+    bind=True,
+    ignore_result=True,
+)
+def process_single_user_file(
+    self: Task, *, user_file_id: str, tenant_id: str  # noqa: ARG001
+) -> None:
+    process_user_file_impl(
+        user_file_id=user_file_id, tenant_id=tenant_id, redis_locking=True
+    )
+
+
 @shared_task(
     name=OnyxCeleryTask.CHECK_FOR_USER_FILE_DELETE,
     soft_time_limit=300,
@@ -581,36 +589,38 @@ def check_for_user_file_delete(self: Task, *, tenant_id: str) -> None:
     return None
 
 
-@shared_task(
-    name=OnyxCeleryTask.DELETE_SINGLE_USER_FILE,
-    bind=True,
-    ignore_result=True,
-)
-def process_single_user_file_delete(
-    self: Task, *, user_file_id: str, tenant_id: str  # noqa: ARG001
+def delete_user_file_impl(
+    *, user_file_id: str, tenant_id: str, redis_locking: bool
 ) -> None:
-    """Process a single user file delete."""
-    task_logger.info(f"process_single_user_file_delete - Starting id={user_file_id}")
-    redis_client = get_redis_client(tenant_id=tenant_id)
-    file_lock: RedisLock = redis_client.lock(
-        _user_file_delete_lock_key(user_file_id),
-        timeout=CELERY_GENERIC_BEAT_LOCK_TIMEOUT,
-    )
-    if not file_lock.acquire(blocking=False):
-        task_logger.info(
-            f"process_single_user_file_delete - Lock held, skipping user_file_id={user_file_id}"
+    """Core implementation for deleting a single user file.
+
+    When redis_locking=True, acquires a per-file Redis lock (Celery path).
+    When redis_locking=False, skips Redis operations (BackgroundTask path).
+    """
+    task_logger.info(f"delete_user_file_impl - Starting id={user_file_id}")
+
+    file_lock: RedisLock | None = None
+    if redis_locking:
+        redis_client = get_redis_client(tenant_id=tenant_id)
+        file_lock = redis_client.lock(
+            _user_file_delete_lock_key(user_file_id),
+            timeout=CELERY_GENERIC_BEAT_LOCK_TIMEOUT,
         )
-        return None
+        if file_lock is not None and not file_lock.acquire(blocking=False):
+            task_logger.info(
+                f"delete_user_file_impl - Lock held, skipping user_file_id={user_file_id}"
+            )
+            return
+
     try:
         with get_session_with_current_tenant() as db_session:
             user_file = db_session.get(UserFile, _as_uuid(user_file_id))
             if not user_file:
                 task_logger.info(
-                    f"process_single_user_file_delete - User file not found id={user_file_id}"
+                    f"delete_user_file_impl - User file not found id={user_file_id}"
                 )
-                return None
+                return
 
-            # 1) Delete vector DB chunks (skip when disabled)
             if not DISABLE_VECTOR_DB:
                 if MANAGED_VESPA:
                     httpx_init_vespa_pool(
@@ -648,7 +658,6 @@ def process_single_user_file_delete(
                         chunk_count=chunk_count,
                     )
 
-            # 2) Delete the user-uploaded file content from filestore (blob + metadata)
             file_store = get_default_file_store()
             try:
                 file_store.delete_file(user_file.file_id)
@@ -656,26 +665,34 @@ def process_single_user_file_delete(
                     user_file_id_to_plaintext_file_name(user_file.id)
                 )
             except Exception as e:
-                # This block executed only if the file is not found in the filestore
                 task_logger.exception(
-                    f"process_single_user_file_delete - Error deleting file id={user_file.id} - {e.__class__.__name__}"
+                    f"delete_user_file_impl - Error deleting file id={user_file.id} - {e.__class__.__name__}"
                 )
 
-            # 3) Finally, delete the UserFile row
             db_session.delete(user_file)
             db_session.commit()
-            task_logger.info(
-                f"process_single_user_file_delete - Completed id={user_file_id}"
-            )
+            task_logger.info(f"delete_user_file_impl - Completed id={user_file_id}")
     except Exception as e:
         task_logger.exception(
-            f"process_single_user_file_delete - Error processing file id={user_file_id} - {e.__class__.__name__}"
+            f"delete_user_file_impl - Error processing file id={user_file_id} - {e.__class__.__name__}"
         )
-        return None
+        raise
     finally:
-        if file_lock.owned():
+        if file_lock is not None and file_lock.owned():
             file_lock.release()
-    return None
+
+
+@shared_task(
+    name=OnyxCeleryTask.DELETE_SINGLE_USER_FILE,
+    bind=True,
+    ignore_result=True,
+)
+def process_single_user_file_delete(
+    self: Task, *, user_file_id: str, tenant_id: str  # noqa: ARG001
+) -> None:
+    delete_user_file_impl(
+        user_file_id=user_file_id, tenant_id=tenant_id, redis_locking=True
+    )
 
 
 @shared_task(
@@ -747,32 +764,30 @@ def check_for_user_file_project_sync(self: Task, *, tenant_id: str) -> None:
     return None
 
 
-@shared_task(
-    name=OnyxCeleryTask.PROCESS_SINGLE_USER_FILE_PROJECT_SYNC,
-    bind=True,
-    ignore_result=True,
-)
-def process_single_user_file_project_sync(
-    self: Task, *, user_file_id: str, tenant_id: str  # noqa: ARG001
+def project_sync_user_file_impl(
+    *, user_file_id: str, tenant_id: str, redis_locking: bool
 ) -> None:
-    """Process a single user file project sync."""
-    task_logger.info(
-        f"process_single_user_file_project_sync - Starting id={user_file_id}"
-    )
+    """Core implementation for syncing a user file's project/persona metadata.
 
-    redis_client = get_redis_client(tenant_id=tenant_id)
-    redis_client.delete(_user_file_project_sync_queued_key(user_file_id))
+    When redis_locking=True, acquires a per-file Redis lock and clears the
+    queued-key guard (Celery path).  When redis_locking=False, skips Redis
+    operations (BackgroundTask path).
+    """
+    task_logger.info(f"project_sync_user_file_impl - Starting id={user_file_id}")
 
-    file_lock: RedisLock = redis_client.lock(
-        user_file_project_sync_lock_key(user_file_id),
-        timeout=CELERY_USER_FILE_PROJECT_SYNC_LOCK_TIMEOUT,
-    )
-
-    if not file_lock.acquire(blocking=False):
-        task_logger.info(
-            f"process_single_user_file_project_sync - Lock held, skipping user_file_id={user_file_id}"
+    file_lock: RedisLock | None = None
+    if redis_locking:
+        redis_client = get_redis_client(tenant_id=tenant_id)
+        redis_client.delete(_user_file_project_sync_queued_key(user_file_id))
+        file_lock = redis_client.lock(
+            user_file_project_sync_lock_key(user_file_id),
+            timeout=CELERY_USER_FILE_PROJECT_SYNC_LOCK_TIMEOUT,
         )
-        return None
+        if file_lock is not None and not file_lock.acquire(blocking=False):
+            task_logger.info(
+                f"project_sync_user_file_impl - Lock held, skipping user_file_id={user_file_id}"
+            )
+            return
 
     try:
         with get_session_with_current_tenant() as db_session:
@@ -783,11 +798,10 @@ def process_single_user_file_project_sync(
             ).scalar_one_or_none()
             if not user_file:
                 task_logger.info(
-                    f"process_single_user_file_project_sync - User file not found id={user_file_id}"
+                    f"project_sync_user_file_impl - User file not found id={user_file_id}"
                 )
-                return None
+                return
 
-            # Sync project metadata to vector DB (skip when disabled)
             if not DISABLE_VECTOR_DB:
                 if MANAGED_VESPA:
                     httpx_init_vespa_pool(
@@ -822,7 +836,7 @@ def process_single_user_file_project_sync(
                     )
 
             task_logger.info(
-                f"process_single_user_file_project_sync - User file id={user_file_id}"
+                f"project_sync_user_file_impl - User file id={user_file_id}"
             )
 
             user_file.needs_project_sync = False
@@ -835,11 +849,22 @@ def process_single_user_file_project_sync(
 
     except Exception as e:
         task_logger.exception(
-            f"process_single_user_file_project_sync - Error syncing project for file id={user_file_id} - {e.__class__.__name__}"
+            f"project_sync_user_file_impl - Error syncing project for file id={user_file_id} - {e.__class__.__name__}"
         )
-        return None
+        raise
     finally:
-        if file_lock.owned():
+        if file_lock is not None and file_lock.owned():
             file_lock.release()
 
-    return None
+
+@shared_task(
+    name=OnyxCeleryTask.PROCESS_SINGLE_USER_FILE_PROJECT_SYNC,
+    bind=True,
+    ignore_result=True,
+)
+def process_single_user_file_project_sync(
+    self: Task, *, user_file_id: str, tenant_id: str  # noqa: ARG001
+) -> None:
+    project_sync_user_file_impl(
+        user_file_id=user_file_id, tenant_id=tenant_id, redis_locking=True
+    )

backend/onyx/background/periodic_poller.py

@@ -0,0 +1,307 @@
+"""Periodic poller for NO_VECTOR_DB deployments.
+
+Replaces Celery Beat and background workers with a lightweight daemon thread
+that runs from the API server process.  Two responsibilities:
+
+1. Recovery polling (every 30 s): re-processes user files stuck in
+   PROCESSING / DELETING / needs_sync states via the drain loops defined
+   in ``task_utils.py``.
+
+2. Periodic task execution (configurable intervals): runs LLM model updates
+   and scheduled evals at their configured cadences, with Postgres advisory
+   lock deduplication across multiple API server instances.
+"""
+
+import threading
+import time
+from collections.abc import Callable
+from dataclasses import dataclass
+from dataclasses import field
+
+from onyx.utils.logger import setup_logger
+
+logger = setup_logger()
+
+RECOVERY_INTERVAL_SECONDS = 30
+PERIODIC_TASK_LOCK_BASE = 20_000
+PERIODIC_TASK_KV_PREFIX = "periodic_poller:last_claimed:"
+
+
+# ------------------------------------------------------------------
+# Periodic task definitions
+# ------------------------------------------------------------------
+
+
+_NEVER_RAN: float = -1e18
+
+
+@dataclass
+class _PeriodicTaskDef:
+    name: str
+    interval_seconds: float
+    lock_id: int
+    run_fn: Callable[[], None]
+    last_run_at: float = field(default=_NEVER_RAN)
+
+
+def _run_auto_llm_update() -> None:
+    from onyx.configs.app_configs import AUTO_LLM_CONFIG_URL
+
+    if not AUTO_LLM_CONFIG_URL:
+        return
+
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+    from onyx.llm.well_known_providers.auto_update_service import (
+        sync_llm_models_from_github,
+    )
+
+    with get_session_with_current_tenant() as db_session:
+        sync_llm_models_from_github(db_session)
+
+
+def _run_cache_cleanup() -> None:
+    from onyx.cache.postgres_backend import cleanup_expired_cache_entries
+
+    cleanup_expired_cache_entries()
+
+
+def _run_scheduled_eval() -> None:
+    from onyx.configs.app_configs import BRAINTRUST_API_KEY
+    from onyx.configs.app_configs import SCHEDULED_EVAL_DATASET_NAMES
+    from onyx.configs.app_configs import SCHEDULED_EVAL_PERMISSIONS_EMAIL
+    from onyx.configs.app_configs import SCHEDULED_EVAL_PROJECT
+
+    if not all(
+        [
+            BRAINTRUST_API_KEY,
+            SCHEDULED_EVAL_PROJECT,
+            SCHEDULED_EVAL_DATASET_NAMES,
+            SCHEDULED_EVAL_PERMISSIONS_EMAIL,
+        ]
+    ):
+        return
+
+    from datetime import datetime
+    from datetime import timezone
+
+    from onyx.evals.eval import run_eval
+    from onyx.evals.models import EvalConfigurationOptions
+
+    run_timestamp = datetime.now(timezone.utc).strftime("%Y-%m-%d")
+    for dataset_name in SCHEDULED_EVAL_DATASET_NAMES:
+        try:
+            run_eval(
+                configuration=EvalConfigurationOptions(
+                    search_permissions_email=SCHEDULED_EVAL_PERMISSIONS_EMAIL,
+                    dataset_name=dataset_name,
+                    no_send_logs=False,
+                    braintrust_project=SCHEDULED_EVAL_PROJECT,
+                    experiment_name=f"{dataset_name} - {run_timestamp}",
+                ),
+                remote_dataset_name=dataset_name,
+            )
+        except Exception:
+            logger.exception(
+                f"Periodic poller - Failed scheduled eval for dataset {dataset_name}"
+            )
+
+
+_CACHE_CLEANUP_INTERVAL_SECONDS = 300
+
+
+def _build_periodic_tasks() -> list[_PeriodicTaskDef]:
+    from onyx.cache.interface import CacheBackendType
+    from onyx.configs.app_configs import AUTO_LLM_CONFIG_URL
+    from onyx.configs.app_configs import AUTO_LLM_UPDATE_INTERVAL_SECONDS
+    from onyx.configs.app_configs import CACHE_BACKEND
+    from onyx.configs.app_configs import SCHEDULED_EVAL_DATASET_NAMES
+
+    tasks: list[_PeriodicTaskDef] = []
+    if CACHE_BACKEND == CacheBackendType.POSTGRES:
+        tasks.append(
+            _PeriodicTaskDef(
+                name="cache-cleanup",
+                interval_seconds=_CACHE_CLEANUP_INTERVAL_SECONDS,
+                lock_id=PERIODIC_TASK_LOCK_BASE + 2,
+                run_fn=_run_cache_cleanup,
+            )
+        )
+    if AUTO_LLM_CONFIG_URL:
+        tasks.append(
+            _PeriodicTaskDef(
+                name="auto-llm-update",
+                interval_seconds=AUTO_LLM_UPDATE_INTERVAL_SECONDS,
+                lock_id=PERIODIC_TASK_LOCK_BASE,
+                run_fn=_run_auto_llm_update,
+            )
+        )
+    if SCHEDULED_EVAL_DATASET_NAMES:
+        tasks.append(
+            _PeriodicTaskDef(
+                name="scheduled-eval",
+                interval_seconds=7 * 24 * 3600,
+                lock_id=PERIODIC_TASK_LOCK_BASE + 1,
+                run_fn=_run_scheduled_eval,
+            )
+        )
+    return tasks
+
+
+# ------------------------------------------------------------------
+# Periodic task runner with advisory-lock-guarded claim
+# ------------------------------------------------------------------
+
+
+def _try_claim_task(task_def: _PeriodicTaskDef) -> bool:
+    """Atomically check whether *task_def* should run and record a claim.
+
+    Uses a transaction-scoped advisory lock for atomicity combined with a
+    ``KVStore`` timestamp for cross-instance dedup.  The DB session is held
+    only for this brief claim transaction, not during task execution.
+    """
+    from datetime import datetime
+    from datetime import timezone
+
+    from sqlalchemy import text
+
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+    from onyx.db.models import KVStore
+
+    kv_key = PERIODIC_TASK_KV_PREFIX + task_def.name
+
+    with get_session_with_current_tenant() as db_session:
+        acquired = db_session.execute(
+            text("SELECT pg_try_advisory_xact_lock(:id)"),
+            {"id": task_def.lock_id},
+        ).scalar()
+        if not acquired:
+            return False
+
+        row = db_session.query(KVStore).filter_by(key=kv_key).first()
+        if row and row.value is not None:
+            last_claimed = datetime.fromisoformat(str(row.value))
+            elapsed = (datetime.now(timezone.utc) - last_claimed).total_seconds()
+            if elapsed < task_def.interval_seconds:
+                return False
+
+        now_ts = datetime.now(timezone.utc).isoformat()
+        if row:
+            row.value = now_ts
+        else:
+            db_session.add(KVStore(key=kv_key, value=now_ts))
+        db_session.commit()
+
+    return True
+
+
+def _try_run_periodic_task(task_def: _PeriodicTaskDef) -> None:
+    """Run *task_def* if its interval has elapsed and no peer holds the lock."""
+    now = time.monotonic()
+    if now - task_def.last_run_at < task_def.interval_seconds:
+        return
+
+    if not _try_claim_task(task_def):
+        return
+
+    try:
+        task_def.run_fn()
+        task_def.last_run_at = now
+    except Exception:
+        logger.exception(
+            f"Periodic poller - Error running periodic task {task_def.name}"
+        )
+
+
+# ------------------------------------------------------------------
+# Recovery / drain loop runner
+# ------------------------------------------------------------------
+
+
+def _run_drain_loops(tenant_id: str) -> None:
+    from onyx.background.task_utils import drain_delete_loop
+    from onyx.background.task_utils import drain_processing_loop
+    from onyx.background.task_utils import drain_project_sync_loop
+
+    drain_processing_loop(tenant_id)
+    drain_delete_loop(tenant_id)
+    drain_project_sync_loop(tenant_id)
+
+
+# ------------------------------------------------------------------
+# Startup recovery (10g)
+# ------------------------------------------------------------------
+
+
+def recover_stuck_user_files(tenant_id: str) -> None:
+    """Run all drain loops once to re-process files left in intermediate states.
+
+    Called from ``lifespan()`` on startup when ``DISABLE_VECTOR_DB`` is set.
+    """
+    logger.info("recover_stuck_user_files - Checking for stuck user files")
+    try:
+        _run_drain_loops(tenant_id)
+    except Exception:
+        logger.exception("recover_stuck_user_files - Error during recovery")
+
+
+# ------------------------------------------------------------------
+# Daemon thread (10f)
+# ------------------------------------------------------------------
+
+_shutdown_event = threading.Event()
+_poller_thread: threading.Thread | None = None
+
+
+def _poller_loop(tenant_id: str) -> None:
+    from shared_configs.contextvars import CURRENT_TENANT_ID_CONTEXTVAR
+
+    CURRENT_TENANT_ID_CONTEXTVAR.set(tenant_id)
+
+    periodic_tasks = _build_periodic_tasks()
+    logger.info(
+        f"Periodic poller started with {len(periodic_tasks)} periodic task(s): "
+        f"{[t.name for t in periodic_tasks]}"
+    )
+
+    while not _shutdown_event.is_set():
+        try:
+            _run_drain_loops(tenant_id)
+        except Exception:
+            logger.exception("Periodic poller - Error in recovery polling")
+
+        for task_def in periodic_tasks:
+            try:
+                _try_run_periodic_task(task_def)
+            except Exception:
+                logger.exception(
+                    f"Periodic poller - Unhandled error checking task {task_def.name}"
+                )
+
+        _shutdown_event.wait(RECOVERY_INTERVAL_SECONDS)
+
+
+def start_periodic_poller(tenant_id: str) -> None:
+    """Start the periodic poller daemon thread."""
+    global _poller_thread  # noqa: PLW0603
+    _shutdown_event.clear()
+    _poller_thread = threading.Thread(
+        target=_poller_loop,
+        args=(tenant_id,),
+        daemon=True,
+        name="no-vectordb-periodic-poller",
+    )
+    _poller_thread.start()
+    logger.info("Periodic poller thread started")
+
+
+def stop_periodic_poller() -> None:
+    """Signal the periodic poller to stop and wait for it to exit."""
+    global _poller_thread  # noqa: PLW0603
+    if _poller_thread is None:
+        return
+    _shutdown_event.set()
+    _poller_thread.join(timeout=10)
+    if _poller_thread.is_alive():
+        logger.warning("Periodic poller thread did not stop within timeout")
+    _poller_thread = None
+    logger.info("Periodic poller thread stopped")

backend/onyx/background/task_utils.py

@@ -1,3 +1,33 @@
+"""Background task utilities.
+
+Contains query-history report helpers (used by all deployment modes) and
+in-process background task execution helpers for NO_VECTOR_DB mode:
+
+- Atomic claim-and-mark helpers that prevent duplicate processing
+- Drain loops that process all pending user file work
+
+Each claim function runs a short-lived transaction: SELECT ... FOR UPDATE
+SKIP LOCKED, UPDATE the row to remove it from future queries, COMMIT.
+After the commit the row lock is released, but the row is no longer
+eligible for re-claiming.  No long-lived sessions or advisory locks.
+"""
+
+from uuid import UUID
+
+import sqlalchemy as sa
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from onyx.db.enums import UserFileStatus
+from onyx.db.models import UserFile
+from onyx.utils.logger import setup_logger
+
+logger = setup_logger()
+
+# ------------------------------------------------------------------
+# Query-history report helpers (pre-existing, used by all modes)
+# ------------------------------------------------------------------
+
 QUERY_REPORT_NAME_PREFIX = "query-history"
 
 
@@ -9,3 +39,168 @@ def construct_query_history_report_name(
 
 def extract_task_id_from_query_history_report_name(name: str) -> str:
     return name.removeprefix(f"{QUERY_REPORT_NAME_PREFIX}-").removesuffix(".csv")
+
+
+# ------------------------------------------------------------------
+# Atomic claim-and-mark helpers
+# ------------------------------------------------------------------
+# Each function runs inside a single short-lived session/transaction:
+#   1. SELECT ... FOR UPDATE SKIP LOCKED  (locks one eligible row)
+#   2. UPDATE the row so it is no longer eligible
+#   3. COMMIT  (releases the row lock)
+# After the commit, no other drain loop can claim the same row.
+
+
+def _claim_next_processing_file(db_session: Session) -> UUID | None:
+    """Claim the next PROCESSING file by transitioning it to INDEXING.
+
+    Returns the file id, or None when no eligible files remain.
+    """
+    file_id = db_session.execute(
+        select(UserFile.id)
+        .where(UserFile.status == UserFileStatus.PROCESSING)
+        .order_by(UserFile.created_at)
+        .limit(1)
+        .with_for_update(skip_locked=True)
+    ).scalar_one_or_none()
+    if file_id is None:
+        return None
+
+    db_session.execute(
+        sa.update(UserFile)
+        .where(UserFile.id == file_id)
+        .values(status=UserFileStatus.INDEXING)
+    )
+    db_session.commit()
+    return file_id
+
+
+def _claim_next_deleting_file(
+    db_session: Session,
+    exclude_ids: set[UUID] | None = None,
+) -> UUID | None:
+    """Claim the next DELETING file.
+
+    No status transition needed — the impl deletes the row on success.
+    The short-lived FOR UPDATE lock prevents concurrent claims.
+    *exclude_ids* prevents re-processing the same file if the impl fails.
+    """
+    stmt = (
+        select(UserFile.id)
+        .where(UserFile.status == UserFileStatus.DELETING)
+        .order_by(UserFile.created_at)
+        .limit(1)
+        .with_for_update(skip_locked=True)
+    )
+    if exclude_ids:
+        stmt = stmt.where(UserFile.id.notin_(exclude_ids))
+    file_id = db_session.execute(stmt).scalar_one_or_none()
+    db_session.commit()
+    return file_id
+
+
+def _claim_next_sync_file(
+    db_session: Session,
+    exclude_ids: set[UUID] | None = None,
+) -> UUID | None:
+    """Claim the next file needing project/persona sync.
+
+    No status transition needed — the impl clears the sync flags on
+    success.  The short-lived FOR UPDATE lock prevents concurrent claims.
+    *exclude_ids* prevents re-processing the same file if the impl fails.
+    """
+    stmt = (
+        select(UserFile.id)
+        .where(
+            sa.and_(
+                sa.or_(
+                    UserFile.needs_project_sync.is_(True),
+                    UserFile.needs_persona_sync.is_(True),
+                ),
+                UserFile.status == UserFileStatus.COMPLETED,
+            )
+        )
+        .order_by(UserFile.created_at)
+        .limit(1)
+        .with_for_update(skip_locked=True)
+    )
+    if exclude_ids:
+        stmt = stmt.where(UserFile.id.notin_(exclude_ids))
+    file_id = db_session.execute(stmt).scalar_one_or_none()
+    db_session.commit()
+    return file_id
+
+
+# ------------------------------------------------------------------
+# Drain loops — process *all* pending work of each type
+# ------------------------------------------------------------------
+
+
+def drain_processing_loop(tenant_id: str) -> None:
+    """Process all pending PROCESSING user files."""
+    from onyx.background.celery.tasks.user_file_processing.tasks import (
+        process_user_file_impl,
+    )
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+    while True:
+        with get_session_with_current_tenant() as session:
+            file_id = _claim_next_processing_file(session)
+        if file_id is None:
+            break
+        try:
+            process_user_file_impl(
+                user_file_id=str(file_id),
+                tenant_id=tenant_id,
+                redis_locking=False,
+            )
+        except Exception:
+            logger.exception(f"Failed to process user file {file_id}")
+
+
+def drain_delete_loop(tenant_id: str) -> None:
+    """Delete all pending DELETING user files."""
+    from onyx.background.celery.tasks.user_file_processing.tasks import (
+        delete_user_file_impl,
+    )
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+    failed: set[UUID] = set()
+    while True:
+        with get_session_with_current_tenant() as session:
+            file_id = _claim_next_deleting_file(session, exclude_ids=failed)
+        if file_id is None:
+            break
+        try:
+            delete_user_file_impl(
+                user_file_id=str(file_id),
+                tenant_id=tenant_id,
+                redis_locking=False,
+            )
+        except Exception:
+            logger.exception(f"Failed to delete user file {file_id}")
+            failed.add(file_id)
+
+
+def drain_project_sync_loop(tenant_id: str) -> None:
+    """Sync all pending project/persona metadata for user files."""
+    from onyx.background.celery.tasks.user_file_processing.tasks import (
+        project_sync_user_file_impl,
+    )
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+    failed: set[UUID] = set()
+    while True:
+        with get_session_with_current_tenant() as session:
+            file_id = _claim_next_sync_file(session, exclude_ids=failed)
+        if file_id is None:
+            break
+        try:
+            project_sync_user_file_impl(
+                user_file_id=str(file_id),
+                tenant_id=tenant_id,
+                redis_locking=False,
+            )
+        except Exception:
+            logger.exception(f"Failed to sync user file {file_id}")
+            failed.add(file_id)

backend/onyx/cache/factory.py

@@ -0,0 +1,51 @@
+from collections.abc import Callable
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.interface import CacheBackendType
+from onyx.configs.app_configs import CACHE_BACKEND
+
+
+def _build_redis_backend(tenant_id: str) -> CacheBackend:
+    from onyx.cache.redis_backend import RedisCacheBackend
+    from onyx.redis.redis_pool import redis_pool
+
+    return RedisCacheBackend(redis_pool.get_client(tenant_id))
+
+
+def _build_postgres_backend(tenant_id: str) -> CacheBackend:
+    from onyx.cache.postgres_backend import PostgresCacheBackend
+
+    return PostgresCacheBackend(tenant_id)
+
+
+_BACKEND_BUILDERS: dict[CacheBackendType, Callable[[str], CacheBackend]] = {
+    CacheBackendType.REDIS: _build_redis_backend,
+    CacheBackendType.POSTGRES: _build_postgres_backend,
+}
+
+
+def get_cache_backend(*, tenant_id: str | None = None) -> CacheBackend:
+    """Return a tenant-aware ``CacheBackend``.
+
+    If *tenant_id* is ``None``, the current tenant is read from the
+    thread-local context variable (same behaviour as ``get_redis_client``).
+    """
+    if tenant_id is None:
+        from shared_configs.contextvars import get_current_tenant_id
+
+        tenant_id = get_current_tenant_id()
+
+    builder = _BACKEND_BUILDERS.get(CACHE_BACKEND)
+    if builder is None:
+        raise ValueError(
+            f"Unsupported CACHE_BACKEND={CACHE_BACKEND!r}. "
+            f"Supported values: {[t.value for t in CacheBackendType]}"
+        )
+    return builder(tenant_id)
+
+
+def get_shared_cache_backend() -> CacheBackend:
+    """Return a ``CacheBackend`` in the shared (cross-tenant) namespace."""
+    from shared_configs.configs import DEFAULT_REDIS_PREFIX
+
+    return get_cache_backend(tenant_id=DEFAULT_REDIS_PREFIX)

backend/onyx/cache/interface.py

@@ -0,0 +1,104 @@
+import abc
+from enum import Enum
+
+TTL_KEY_NOT_FOUND = -2
+TTL_NO_EXPIRY = -1
+
+
+class CacheBackendType(str, Enum):
+    REDIS = "redis"
+    POSTGRES = "postgres"
+
+
+class CacheLock(abc.ABC):
+    """Abstract distributed lock returned by CacheBackend.lock()."""
+
+    @abc.abstractmethod
+    def acquire(
+        self,
+        blocking: bool = True,
+        blocking_timeout: float | None = None,
+    ) -> bool:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def release(self) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def owned(self) -> bool:
+        raise NotImplementedError
+
+    def __enter__(self) -> "CacheLock":
+        if not self.acquire():
+            raise RuntimeError("Failed to acquire lock")
+        return self
+
+    def __exit__(self, *args: object) -> None:
+        self.release()
+
+
+class CacheBackend(abc.ABC):
+    """Thin abstraction over a key-value cache with TTL, locks, and blocking lists.
+
+    Covers the subset of Redis operations used outside of Celery. When
+    CACHE_BACKEND=postgres, a PostgreSQL-backed implementation is used instead.
+    """
+
+    # -- basic key/value ---------------------------------------------------
+
+    @abc.abstractmethod
+    def get(self, key: str) -> bytes | None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def set(
+        self,
+        key: str,
+        value: str | bytes | int | float,
+        ex: int | None = None,
+    ) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def delete(self, key: str) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def exists(self, key: str) -> bool:
+        raise NotImplementedError
+
+    # -- TTL ---------------------------------------------------------------
+
+    @abc.abstractmethod
+    def expire(self, key: str, seconds: int) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def ttl(self, key: str) -> int:
+        """Return remaining TTL in seconds.
+
+        Returns ``TTL_NO_EXPIRY`` (-1) if key exists without expiry,
+        ``TTL_KEY_NOT_FOUND`` (-2) if key is missing or expired.
+        """
+        raise NotImplementedError
+
+    # -- distributed lock --------------------------------------------------
+
+    @abc.abstractmethod
+    def lock(self, name: str, timeout: float | None = None) -> CacheLock:
+        raise NotImplementedError
+
+    # -- blocking list (used by MCP OAuth BLPOP pattern) -------------------
+
+    @abc.abstractmethod
+    def rpush(self, key: str, value: str | bytes) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    def blpop(self, keys: list[str], timeout: int = 0) -> tuple[bytes, bytes] | None:
+        """Block until a value is available on one of *keys*, or *timeout* expires.
+
+        Returns ``(key, value)`` or ``None`` on timeout.
+        """
+        raise NotImplementedError

backend/onyx/cache/postgres_backend.py

@@ -0,0 +1,323 @@
+"""PostgreSQL-backed ``CacheBackend`` for NO_VECTOR_DB deployments.
+
+Uses the ``cache_store`` table for key-value storage, PostgreSQL advisory locks
+for distributed locking, and a polling loop for the BLPOP pattern.
+"""
+
+import hashlib
+import struct
+import time
+import uuid
+from contextlib import AbstractContextManager
+from datetime import datetime
+from datetime import timedelta
+from datetime import timezone
+
+from sqlalchemy import delete
+from sqlalchemy import func
+from sqlalchemy import or_
+from sqlalchemy import select
+from sqlalchemy import update
+from sqlalchemy.dialects.postgresql import insert as pg_insert
+from sqlalchemy.orm import Session
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.interface import CacheLock
+from onyx.cache.interface import TTL_KEY_NOT_FOUND
+from onyx.cache.interface import TTL_NO_EXPIRY
+from onyx.db.models import CacheStore
+
+_LIST_KEY_PREFIX = "_q:"
+# ASCII: ':' (0x3A) < ';' (0x3B). Upper bound for range queries so [prefix+, prefix;)
+# captures all list-item keys (e.g. _q:mylist:123:uuid) without including other
+# lists whose names share a prefix (e.g. _q:mylist2:...).
+_LIST_KEY_RANGE_TERMINATOR = ";"
+_LIST_ITEM_TTL_SECONDS = 3600
+_LOCK_POLL_INTERVAL = 0.1
+_BLPOP_POLL_INTERVAL = 0.25
+
+
+def _list_item_key(key: str) -> str:
+    """Unique key for a list item. Timestamp for FIFO ordering; UUID prevents
+    collision when concurrent rpush calls occur within the same nanosecond.
+    """
+    return f"{_LIST_KEY_PREFIX}{key}:{time.time_ns()}:{uuid.uuid4().hex}"
+
+
+def _to_bytes(value: str | bytes | int | float) -> bytes:
+    if isinstance(value, bytes):
+        return value
+    return str(value).encode()
+
+
+# ------------------------------------------------------------------
+# Lock
+# ------------------------------------------------------------------
+
+
+class PostgresCacheLock(CacheLock):
+    """Advisory-lock-based distributed lock.
+
+    Uses ``get_session_with_tenant`` for connection lifecycle.  The lock is tied
+    to the session's connection; releasing or closing the session frees it.
+
+    NOTE: Unlike Redis locks, advisory locks do not auto-expire after
+    ``timeout`` seconds.  They are released when ``release()`` is
+    called or when the session is closed.
+    """
+
+    def __init__(self, lock_id: int, timeout: float | None, tenant_id: str) -> None:
+        self._lock_id = lock_id
+        self._timeout = timeout
+        self._tenant_id = tenant_id
+        self._session_cm: AbstractContextManager[Session] | None = None
+        self._session: Session | None = None
+        self._acquired = False
+
+    def acquire(
+        self,
+        blocking: bool = True,
+        blocking_timeout: float | None = None,
+    ) -> bool:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        self._session_cm = get_session_with_tenant(tenant_id=self._tenant_id)
+        self._session = self._session_cm.__enter__()
+        try:
+            if not blocking:
+                return self._try_lock()
+
+            effective_timeout = blocking_timeout or self._timeout
+            deadline = (
+                (time.monotonic() + effective_timeout) if effective_timeout else None
+            )
+            while True:
+                if self._try_lock():
+                    return True
+                if deadline is not None and time.monotonic() >= deadline:
+                    return False
+                time.sleep(_LOCK_POLL_INTERVAL)
+        finally:
+            if not self._acquired:
+                self._close_session()
+
+    def release(self) -> None:
+        if not self._acquired or self._session is None:
+            return
+        try:
+            self._session.execute(select(func.pg_advisory_unlock(self._lock_id)))
+        finally:
+            self._acquired = False
+            self._close_session()
+
+    def owned(self) -> bool:
+        return self._acquired
+
+    def _close_session(self) -> None:
+        if self._session_cm is not None:
+            try:
+                self._session_cm.__exit__(None, None, None)
+            finally:
+                self._session_cm = None
+                self._session = None
+
+    def _try_lock(self) -> bool:
+        assert self._session is not None
+        result = self._session.execute(
+            select(func.pg_try_advisory_lock(self._lock_id))
+        ).scalar()
+        if result:
+            self._acquired = True
+            return True
+        return False
+
+
+# ------------------------------------------------------------------
+# Backend
+# ------------------------------------------------------------------
+
+
+class PostgresCacheBackend(CacheBackend):
+    """``CacheBackend`` backed by the ``cache_store`` table in PostgreSQL.
+
+    Each operation opens and closes its own database session so the backend
+    is safe to share across threads.  Tenant isolation is handled by
+    SQLAlchemy's ``schema_translate_map`` (set by ``get_session_with_tenant``).
+    """
+
+    def __init__(self, tenant_id: str) -> None:
+        self._tenant_id = tenant_id
+
+    # -- basic key/value ---------------------------------------------------
+
+    def get(self, key: str) -> bytes | None:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        stmt = select(CacheStore.value).where(
+            CacheStore.key == key,
+            or_(CacheStore.expires_at.is_(None), CacheStore.expires_at > func.now()),
+        )
+        with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+            value = session.execute(stmt).scalar_one_or_none()
+        if value is None:
+            return None
+        return bytes(value)
+
+    def set(
+        self,
+        key: str,
+        value: str | bytes | int | float,
+        ex: int | None = None,
+    ) -> None:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        value_bytes = _to_bytes(value)
+        expires_at = (
+            datetime.now(timezone.utc) + timedelta(seconds=ex)
+            if ex is not None
+            else None
+        )
+        stmt = (
+            pg_insert(CacheStore)
+            .values(key=key, value=value_bytes, expires_at=expires_at)
+            .on_conflict_do_update(
+                index_elements=[CacheStore.key],
+                set_={"value": value_bytes, "expires_at": expires_at},
+            )
+        )
+        with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+            session.execute(stmt)
+            session.commit()
+
+    def delete(self, key: str) -> None:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+            session.execute(delete(CacheStore).where(CacheStore.key == key))
+            session.commit()
+
+    def exists(self, key: str) -> bool:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        stmt = (
+            select(CacheStore.key)
+            .where(
+                CacheStore.key == key,
+                or_(
+                    CacheStore.expires_at.is_(None),
+                    CacheStore.expires_at > func.now(),
+                ),
+            )
+            .limit(1)
+        )
+        with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+            return session.execute(stmt).first() is not None
+
+    # -- TTL ---------------------------------------------------------------
+
+    def expire(self, key: str, seconds: int) -> None:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        new_exp = datetime.now(timezone.utc) + timedelta(seconds=seconds)
+        stmt = (
+            update(CacheStore).where(CacheStore.key == key).values(expires_at=new_exp)
+        )
+        with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+            session.execute(stmt)
+            session.commit()
+
+    def ttl(self, key: str) -> int:
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        stmt = select(CacheStore.expires_at).where(CacheStore.key == key)
+        with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+            result = session.execute(stmt).first()
+        if result is None:
+            return TTL_KEY_NOT_FOUND
+        expires_at: datetime | None = result[0]
+        if expires_at is None:
+            return TTL_NO_EXPIRY
+        remaining = (expires_at - datetime.now(timezone.utc)).total_seconds()
+        if remaining <= 0:
+            return TTL_KEY_NOT_FOUND
+        return int(remaining)
+
+    # -- distributed lock --------------------------------------------------
+
+    def lock(self, name: str, timeout: float | None = None) -> CacheLock:
+        return PostgresCacheLock(
+            self._lock_id_for(name), timeout, tenant_id=self._tenant_id
+        )
+
+    # -- blocking list (MCP OAuth BLPOP pattern) ---------------------------
+
+    def rpush(self, key: str, value: str | bytes) -> None:
+        self.set(_list_item_key(key), value, ex=_LIST_ITEM_TTL_SECONDS)
+
+    def blpop(self, keys: list[str], timeout: int = 0) -> tuple[bytes, bytes] | None:
+        if timeout <= 0:
+            raise ValueError(
+                "PostgresCacheBackend.blpop requires timeout > 0. "
+                "timeout=0 would block the calling thread indefinitely "
+                "with no way to interrupt short of process termination."
+            )
+        from onyx.db.engine.sql_engine import get_session_with_tenant
+
+        deadline = time.monotonic() + timeout
+        while True:
+            for key in keys:
+                lower = f"{_LIST_KEY_PREFIX}{key}:"
+                upper = f"{_LIST_KEY_PREFIX}{key}{_LIST_KEY_RANGE_TERMINATOR}"
+                stmt = (
+                    select(CacheStore)
+                    .where(
+                        CacheStore.key >= lower,
+                        CacheStore.key < upper,
+                        or_(
+                            CacheStore.expires_at.is_(None),
+                            CacheStore.expires_at > func.now(),
+                        ),
+                    )
+                    .order_by(CacheStore.key)
+                    .limit(1)
+                    .with_for_update(skip_locked=True)
+                )
+                with get_session_with_tenant(tenant_id=self._tenant_id) as session:
+                    row = session.execute(stmt).scalars().first()
+                    if row is not None:
+                        value = bytes(row.value) if row.value else b""
+                        session.delete(row)
+                        session.commit()
+                        return (key.encode(), value)
+            if time.monotonic() >= deadline:
+                return None
+            time.sleep(_BLPOP_POLL_INTERVAL)
+
+    # -- helpers -----------------------------------------------------------
+
+    def _lock_id_for(self, name: str) -> int:
+        """Map *name* to a 64-bit signed int for ``pg_advisory_lock``."""
+        h = hashlib.md5(f"{self._tenant_id}:{name}".encode()).digest()
+        return struct.unpack("q", h[:8])[0]
+
+
+# ------------------------------------------------------------------
+# Periodic cleanup
+# ------------------------------------------------------------------
+
+
+def cleanup_expired_cache_entries() -> None:
+    """Delete rows whose ``expires_at`` is in the past.
+
+    Called by the periodic poller every 5 minutes.
+    """
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+    with get_session_with_current_tenant() as session:
+        session.execute(
+            delete(CacheStore).where(
+                CacheStore.expires_at.is_not(None),
+                CacheStore.expires_at < func.now(),
+            )
+        )
+        session.commit()

backend/onyx/cache/redis_backend.py

@@ -0,0 +1,92 @@
+from typing import cast
+
+from redis.client import Redis
+from redis.lock import Lock as RedisLock
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.interface import CacheLock
+
+
+class RedisCacheLock(CacheLock):
+    """Wraps ``redis.lock.Lock`` behind the ``CacheLock`` interface."""
+
+    def __init__(self, lock: RedisLock) -> None:
+        self._lock = lock
+
+    def acquire(
+        self,
+        blocking: bool = True,
+        blocking_timeout: float | None = None,
+    ) -> bool:
+        return bool(
+            self._lock.acquire(
+                blocking=blocking,
+                blocking_timeout=blocking_timeout,
+            )
+        )
+
+    def release(self) -> None:
+        self._lock.release()
+
+    def owned(self) -> bool:
+        return bool(self._lock.owned())
+
+
+class RedisCacheBackend(CacheBackend):
+    """``CacheBackend`` implementation that delegates to a ``redis.Redis`` client.
+
+    This is a thin pass-through — every method maps 1-to-1 to the underlying
+    Redis command.  ``TenantRedis`` key-prefixing is handled by the client
+    itself (provided by ``get_redis_client``).
+    """
+
+    def __init__(self, redis_client: Redis) -> None:
+        self._r = redis_client
+
+    # -- basic key/value ---------------------------------------------------
+
+    def get(self, key: str) -> bytes | None:
+        val = self._r.get(key)
+        if val is None:
+            return None
+        if isinstance(val, bytes):
+            return val
+        return str(val).encode()
+
+    def set(
+        self,
+        key: str,
+        value: str | bytes | int | float,
+        ex: int | None = None,
+    ) -> None:
+        self._r.set(key, value, ex=ex)
+
+    def delete(self, key: str) -> None:
+        self._r.delete(key)
+
+    def exists(self, key: str) -> bool:
+        return bool(self._r.exists(key))
+
+    # -- TTL ---------------------------------------------------------------
+
+    def expire(self, key: str, seconds: int) -> None:
+        self._r.expire(key, seconds)
+
+    def ttl(self, key: str) -> int:
+        return cast(int, self._r.ttl(key))
+
+    # -- distributed lock --------------------------------------------------
+
+    def lock(self, name: str, timeout: float | None = None) -> CacheLock:
+        return RedisCacheLock(self._r.lock(name, timeout=timeout))
+
+    # -- blocking list (MCP OAuth BLPOP pattern) ---------------------------
+
+    def rpush(self, key: str, value: str | bytes) -> None:
+        self._r.rpush(key, value)
+
+    def blpop(self, keys: list[str], timeout: int = 0) -> tuple[bytes, bytes] | None:
+        result = cast(list[bytes] | None, self._r.blpop(keys, timeout=timeout))
+        if result is None:
+            return None
+        return (result[0], result[1])

backend/onyx/chat/chat_processing_checker.py

@@ -1,57 +1,52 @@
 from uuid import UUID
 
-from redis.client import Redis
+from onyx.cache.interface import CacheBackend
 
-# Redis key prefixes for chat message processing
 PREFIX = "chatprocessing"
 FENCE_PREFIX = f"{PREFIX}_fence"
 FENCE_TTL = 30 * 60  # 30 minutes
 
 
 def _get_fence_key(chat_session_id: UUID) -> str:
-    """
-    Generate the Redis key for a chat session processing a message.
+    """Generate the cache key for a chat session processing fence.
 
     Args:
         chat_session_id: The UUID of the chat session
 
     Returns:
-        The fence key string (tenant_id is automatically added by the Redis client)
+        The fence key string. Tenant isolation is handled automatically
+        by the cache backend (Redis key-prefixing or Postgres schema routing).
     """
     return f"{FENCE_PREFIX}_{chat_session_id}"
 
 
 def set_processing_status(
-    chat_session_id: UUID, redis_client: Redis, value: bool
+    chat_session_id: UUID, cache: CacheBackend, value: bool
 ) -> None:
-    """
-    Set or clear the fence for a chat session processing a message.
+    """Set or clear the fence for a chat session processing a message.
 
-    If the key exists, we are processing a message. If the key does not exist, we are not processing a message.
+    If the key exists, a message is being processed.
 
     Args:
         chat_session_id: The UUID of the chat session
-        redis_client: The Redis client to use
+        cache: Tenant-aware cache backend
         value: True to set the fence, False to clear it
     """
     fence_key = _get_fence_key(chat_session_id)
-
     if value:
-        redis_client.set(fence_key, 0, ex=FENCE_TTL)
+        cache.set(fence_key, 0, ex=FENCE_TTL)
     else:
-        redis_client.delete(fence_key)
+        cache.delete(fence_key)
 
 
-def is_chat_session_processing(chat_session_id: UUID, redis_client: Redis) -> bool:
-    """
-    Check if the chat session is processing a message.
+def is_chat_session_processing(chat_session_id: UUID, cache: CacheBackend) -> bool:
+    """Check if the chat session is processing a message.
 
     Args:
         chat_session_id: The UUID of the chat session
-        redis_client: The Redis client to use
+        cache: Tenant-aware cache backend
 
     Returns:
         True if the chat session is processing a message, False otherwise
     """
-    fence_key = _get_fence_key(chat_session_id)
-    return bool(redis_client.exists(fence_key))
+    return cache.exists(_get_fence_key(chat_session_id))

backend/onyx/chat/llm_loop.py

@@ -1,6 +1,7 @@
 import json
 import time
 from collections.abc import Callable
+from typing import Any
 from typing import Literal
 
 from sqlalchemy.orm import Session
@@ -530,11 +531,13 @@ def _create_file_tool_metadata_message(
     """
     lines = [
         "You have access to the following files. Use the read_file tool to "
-        "read sections of any file:"
+        "read sections of any file. You MUST pass the file_id UUID (not the "
+        "filename) to read_file:"
     ]
     for meta in file_metadata:
         lines.append(
-            f'- {meta.file_id}: "{meta.filename}" (~{meta.approx_char_count:,} chars)'
+            f'- file_id="{meta.file_id}" filename="{meta.filename}" '
+            f"(~{meta.approx_char_count:,} chars)"
         )
 
     message_content = "\n".join(lines)
@@ -558,12 +561,16 @@ def _create_context_files_message(
     # Format as documents JSON as described in README
     documents_list = []
     for idx, file_text in enumerate(context_files.file_texts, start=1):
-        documents_list.append(
-            {
-                "document": idx,
-                "contents": file_text,
-            }
+        title = (
+            context_files.file_metadata[idx - 1].filename
+            if idx - 1 < len(context_files.file_metadata)
+            else None
         )
+        entry: dict[str, Any] = {"document": idx}
+        if title:
+            entry["title"] = title
+        entry["contents"] = file_text
+        documents_list.append(entry)
 
     documents_json = json.dumps({"documents": documents_list}, indent=2)
     message_content = f"Here are some documents provided for context, they may not all be relevant:\n{documents_json}"

backend/onyx/chat/process_message.py

@@ -11,9 +11,10 @@ from contextvars import Token
 from uuid import UUID
 
 from pydantic import BaseModel
-from redis.client import Redis
 from sqlalchemy.orm import Session
 
+from onyx.cache.factory import get_cache_backend
+from onyx.cache.interface import CacheBackend
 from onyx.chat.chat_processing_checker import set_processing_status
 from onyx.chat.chat_state import ChatStateContainer
 from onyx.chat.chat_state import run_chat_loop_with_state_containers
@@ -79,7 +80,6 @@ from onyx.llm.request_context import reset_llm_mock_response
 from onyx.llm.request_context import set_llm_mock_response
 from onyx.llm.utils import litellm_exception_to_error_msg
 from onyx.onyxbot.slack.models import SlackContext
-from onyx.redis.redis_pool import get_redis_client
 from onyx.server.query_and_chat.models import AUTO_PLACE_AFTER_LATEST_MESSAGE
 from onyx.server.query_and_chat.models import MessageResponseIDInfo
 from onyx.server.query_and_chat.models import SendMessageRequest
@@ -448,7 +448,7 @@ def handle_stream_message_objects(
 
     llm: LLM | None = None
     chat_session: ChatSession | None = None
-    redis_client: Redis | None = None
+    cache: CacheBackend | None = None
 
     user_id = user.id
     if user.is_anonymous:
@@ -809,19 +809,19 @@ def handle_stream_message_objects(
             )
             simple_chat_history.insert(0, summary_simple)
 
-        redis_client = get_redis_client()
+        cache = get_cache_backend()
 
         reset_cancel_status(
             chat_session.id,
-            redis_client,
+            cache,
         )
 
         def check_is_connected() -> bool:
-            return check_stop_signal(chat_session.id, redis_client)
+            return check_stop_signal(chat_session.id, cache)
 
         set_processing_status(
             chat_session_id=chat_session.id,
-            redis_client=redis_client,
+            cache=cache,
             value=True,
         )
 
@@ -968,10 +968,10 @@ def handle_stream_message_objects(
             reset_llm_mock_response(mock_response_token)
 
         try:
-            if redis_client is not None and chat_session is not None:
+            if cache is not None and chat_session is not None:
                 set_processing_status(
                     chat_session_id=chat_session.id,
-                    redis_client=redis_client,
+                    cache=cache,
                     value=False,
                 )
         except Exception:

backend/onyx/chat/stop_signal_checker.py

@@ -1,65 +1,58 @@
 from uuid import UUID
 
-from redis.client import Redis
+from onyx.cache.interface import CacheBackend
 
-# Redis key prefixes for chat session stop signals
 PREFIX = "chatsessionstop"
 FENCE_PREFIX = f"{PREFIX}_fence"
-FENCE_TTL = 10 * 60  # 10 minutes - defensive TTL to prevent memory leaks
+FENCE_TTL = 10 * 60  # 10 minutes
 
 
 def _get_fence_key(chat_session_id: UUID) -> str:
-    """
-    Generate the Redis key for a chat session stop signal fence.
+    """Generate the cache key for a chat session stop signal fence.
 
     Args:
         chat_session_id: The UUID of the chat session
 
     Returns:
-        The fence key string (tenant_id is automatically added by the Redis client)
+        The fence key string. Tenant isolation is handled automatically
+        by the cache backend (Redis key-prefixing or Postgres schema routing).
     """
     return f"{FENCE_PREFIX}_{chat_session_id}"
 
 
-def set_fence(chat_session_id: UUID, redis_client: Redis, value: bool) -> None:
-    """
-    Set or clear the stop signal fence for a chat session.
+def set_fence(chat_session_id: UUID, cache: CacheBackend, value: bool) -> None:
+    """Set or clear the stop signal fence for a chat session.
 
     Args:
         chat_session_id: The UUID of the chat session
-        redis_client: Redis client to use (tenant-aware client that auto-prefixes keys)
+        cache: Tenant-aware cache backend
         value: True to set the fence (stop signal), False to clear it
     """
     fence_key = _get_fence_key(chat_session_id)
     if not value:
-        redis_client.delete(fence_key)
+        cache.delete(fence_key)
         return
-
-    redis_client.set(fence_key, 0, ex=FENCE_TTL)
+    cache.set(fence_key, 0, ex=FENCE_TTL)
 
 
-def is_connected(chat_session_id: UUID, redis_client: Redis) -> bool:
-    """
-    Check if the chat session should continue (not stopped).
+def is_connected(chat_session_id: UUID, cache: CacheBackend) -> bool:
+    """Check if the chat session should continue (not stopped).
 
     Args:
         chat_session_id: The UUID of the chat session to check
-        redis_client: Redis client to use for checking the stop signal (tenant-aware client that auto-prefixes keys)
+        cache: Tenant-aware cache backend
 
     Returns:
         True if the session should continue, False if it should stop
     """
-    fence_key = _get_fence_key(chat_session_id)
-    return not bool(redis_client.exists(fence_key))
+    return not cache.exists(_get_fence_key(chat_session_id))
 
 
-def reset_cancel_status(chat_session_id: UUID, redis_client: Redis) -> None:
-    """
-    Clear the stop signal for a chat session.
+def reset_cancel_status(chat_session_id: UUID, cache: CacheBackend) -> None:
+    """Clear the stop signal for a chat session.
 
     Args:
         chat_session_id: The UUID of the chat session
-        redis_client: Redis client to use (tenant-aware client that auto-prefixes keys)
+        cache: Tenant-aware cache backend
     """
-    fence_key = _get_fence_key(chat_session_id)
-    redis_client.delete(fence_key)
+    cache.delete(_get_fence_key(chat_session_id))

backend/onyx/configs/app_configs.py

@@ -6,6 +6,7 @@ from datetime import timezone
 from typing import cast
 
 from onyx.auth.schemas import AuthBackend
+from onyx.cache.interface import CacheBackendType
 from onyx.configs.constants import AuthType
 from onyx.configs.constants import QueryHistoryType
 from onyx.file_processing.enums import HtmlBasedConnectorTransformLinksStrategy
@@ -54,6 +55,12 @@ DISABLE_USER_KNOWLEDGE = os.environ.get("DISABLE_USER_KNOWLEDGE", "").lower() ==
 # are disabled but core chat, tools, user file uploads, and Projects still work.
 DISABLE_VECTOR_DB = os.environ.get("DISABLE_VECTOR_DB", "").lower() == "true"
 
+# Which backend to use for caching, locks, and ephemeral state.
+# "redis" (default) or "postgres" (only valid when DISABLE_VECTOR_DB=true).
+CACHE_BACKEND = CacheBackendType(
+    os.environ.get("CACHE_BACKEND", CacheBackendType.REDIS)
+)
+
 # Maximum token count for a single uploaded file. Files exceeding this are rejected.
 # Defaults to 100k tokens (or 10M when vector DB is disabled).
 _DEFAULT_FILE_TOKEN_LIMIT = 10_000_000 if DISABLE_VECTOR_DB else 100_000

backend/onyx/db/chat.py

@@ -98,6 +98,7 @@ def get_chat_sessions_by_user(
     db_session: Session,
     include_onyxbot_flows: bool = False,
     limit: int = 50,
+    before: datetime | None = None,
     project_id: int | None = None,
     only_non_project_chats: bool = False,
     include_failed_chats: bool = False,
@@ -112,6 +113,9 @@ def get_chat_sessions_by_user(
     if deleted is not None:
         stmt = stmt.where(ChatSession.deleted == deleted)
 
+    if before is not None:
+        stmt = stmt.where(ChatSession.time_updated < before)
+
     if limit:
         stmt = stmt.limit(limit)
 

backend/onyx/db/enums.py

@@ -186,6 +186,7 @@ class EmbeddingPrecision(str, PyEnum):
 
 class UserFileStatus(str, PyEnum):
     PROCESSING = "PROCESSING"
+    INDEXING = "INDEXING"
     COMPLETED = "COMPLETED"
     FAILED = "FAILED"
     CANCELED = "CANCELED"

backend/onyx/db/llm.py

@@ -109,45 +109,38 @@ def can_user_access_llm_provider(
         is_admin: If True, bypass user group restrictions but still respect persona restrictions
 
     Access logic:
-    1. If is_public=True → everyone has access (public override)
-    2. If is_public=False:
-       - Both groups AND personas set → must satisfy BOTH (AND logic, admins bypass group check)
-       - Only groups set → must be in one of the groups (OR across groups, admins bypass)
-       - Only personas set → must use one of the personas (OR across personas, applies to admins)
-       - Neither set → NOBODY has access unless admin (locked, admin-only)
+    - is_public controls USER access (group bypass): when True, all users can access
+      regardless of group membership. When False, user must be in a whitelisted group
+      (or be admin).
+    - Persona restrictions are ALWAYS enforced when set, regardless of is_public.
+      This allows admins to make a provider available to all users while still
+      restricting which personas (assistants) can use it.
+
+    Decision matrix:
+    1. is_public=True, no personas set → everyone has access
+    2. is_public=True, personas set → all users, but only whitelisted personas
+    3. is_public=False, groups+personas set → must satisfy BOTH (admins bypass groups)
+    4. is_public=False, only groups set → must be in group (admins bypass)
+    5. is_public=False, only personas set → must use whitelisted persona
+    6. is_public=False, neither set → admin-only (locked)
     """
-    # Public override - everyone has access
-    if provider.is_public:
-        return True
-
-    # Extract IDs once to avoid multiple iterations
-    provider_group_ids = (
-        {group.id for group in provider.groups} if provider.groups else set()
-    )
-    provider_persona_ids = (
-        {p.id for p in provider.personas} if provider.personas else set()
-    )
-
+    provider_group_ids = {g.id for g in (provider.groups or [])}
+    provider_persona_ids = {p.id for p in (provider.personas or [])}
     has_groups = bool(provider_group_ids)
     has_personas = bool(provider_persona_ids)
 
-    # Both groups AND personas set → AND logic (must satisfy both)
-    if has_groups and has_personas:
-        # Admins bypass group check but still must satisfy persona restrictions
-        user_in_group = is_admin or bool(user_group_ids & provider_group_ids)
-        persona_allowed = persona.id in provider_persona_ids if persona else False
-        return user_in_group and persona_allowed
+    # Persona restrictions are always enforced when set, regardless of is_public
+    if has_personas and not (persona and persona.id in provider_persona_ids):
+        return False
+
+    if provider.is_public:
+        return True
 
-    # Only groups set → user must be in one of the groups (admins bypass)
     if has_groups:
         return is_admin or bool(user_group_ids & provider_group_ids)
 
-    # Only personas set → persona must be in allowed list (applies to admins too)
-    if has_personas:
-        return persona.id in provider_persona_ids if persona else False
-
-    # Neither groups nor personas set, and not public → admins can access
-    return is_admin
+    # No groups: either persona-whitelisted (already passed) or admin-only if locked
+    return has_personas or is_admin
 
 
 def validate_persona_ids_exist(
@@ -872,7 +865,6 @@ def insert_new_model_configuration__no_commit(
             is_visible=is_visible,
             max_input_tokens=max_input_tokens,
             display_name=display_name,
-            supports_image_input=LLMModelFlowType.VISION in supported_flows,
         )
         .on_conflict_do_nothing()
         .returning(ModelConfiguration.id)
@@ -907,7 +899,6 @@ def update_model_configuration__no_commit(
             is_visible=is_visible,
             max_input_tokens=max_input_tokens,
             display_name=display_name,
-            supports_image_input=LLMModelFlowType.VISION in supported_flows,
         )
         .where(ModelConfiguration.id == model_configuration_id)
         .returning(ModelConfiguration)

backend/onyx/db/models.py

@@ -103,7 +103,6 @@ from onyx.utils.encryption import encrypt_string_to_bytes
 from onyx.utils.sensitive import SensitiveValue
 from onyx.utils.headers import HeaderItemDict
 from shared_configs.enums import EmbeddingProvider
-from onyx.context.search.enums import RecencyBiasSetting
 
 # TODO: After anonymous user migration has been deployed, make user_id columns NOT NULL
 # and update Mapped[User | None] relationships to Mapped[User] where needed.
@@ -2883,9 +2882,6 @@ class ModelConfiguration(Base):
     # - The end-user is configuring a model and chooses not to set a max-input-tokens limit.
     max_input_tokens: Mapped[int | None] = mapped_column(Integer, nullable=True)
 
-    # Deprecated: use LLMModelFlow with VISION flow type instead
-    supports_image_input: Mapped[bool | None] = mapped_column(Boolean, nullable=True)
-
     # Human-readable display name for the model.
     # For dynamic providers (OpenRouter, Bedrock, Ollama), this comes from the source API.
     # For static providers (OpenAI, Anthropic), this may be null and will fall back to LiteLLM.
@@ -3265,19 +3261,6 @@ class Persona(Base):
     )
     name: Mapped[str] = mapped_column(String)
     description: Mapped[str] = mapped_column(String)
-    # Number of chunks to pass to the LLM for generation.
-    num_chunks: Mapped[float | None] = mapped_column(Float, nullable=True)
-    chunks_above: Mapped[int] = mapped_column(Integer)
-    chunks_below: Mapped[int] = mapped_column(Integer)
-    # Pass every chunk through LLM for evaluation, fairly expensive
-    # Can be turned off globally by admin, in which case, this setting is ignored
-    llm_relevance_filter: Mapped[bool] = mapped_column(Boolean)
-    # Enables using LLM to extract time and source type filters
-    # Can also be admin disabled globally
-    llm_filter_extraction: Mapped[bool] = mapped_column(Boolean)
-    recency_bias: Mapped[RecencyBiasSetting] = mapped_column(
-        Enum(RecencyBiasSetting, native_enum=False)
-    )
 
     # Allows the persona to specify a specific default LLM model
     # NOTE: only is applied on the actual response generation - is not used for things like
@@ -3304,11 +3287,8 @@ class Persona(Base):
     # Treated specially (cannot be user edited etc.)
     builtin_persona: Mapped[bool] = mapped_column(Boolean, default=False)
 
-    # Default personas are personas created by admins and are automatically added
-    # to all users' assistants list.
-    is_default_persona: Mapped[bool] = mapped_column(
-        Boolean, default=False, nullable=False
-    )
+    # Featured personas are highlighted in the UI
+    featured: Mapped[bool] = mapped_column(Boolean, default=False)
     # controls whether the persona is available to be selected by users
     is_visible: Mapped[bool] = mapped_column(Boolean, default=True)
     # controls the ordering of personas in the UI
@@ -4943,7 +4923,9 @@ class ScimUserMapping(Base):
     __tablename__ = "scim_user_mapping"
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True)
-    external_id: Mapped[str] = mapped_column(String, unique=True, index=True)
+    external_id: Mapped[str | None] = mapped_column(
+        String, unique=True, index=True, nullable=True
+    )
     user_id: Mapped[UUID] = mapped_column(
         ForeignKey("user.id", ondelete="CASCADE"), unique=True, nullable=False
     )
@@ -5000,3 +4982,25 @@ class CodeInterpreterServer(Base):
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True)
     server_enabled: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
+
+
+class CacheStore(Base):
+    """Key-value cache table used by ``PostgresCacheBackend``.
+
+    Replaces Redis for simple KV caching, locks, and list operations
+    when ``CACHE_BACKEND=postgres`` (NO_VECTOR_DB deployments).
+
+    Intentionally separate from ``KVStore``:
+    - Stores raw bytes (LargeBinary) vs JSONB, matching Redis semantics.
+    - Has ``expires_at`` for TTL; rows are periodically garbage-collected.
+    - Holds ephemeral data (tokens, stop signals, lock state) not
+      persistent application config, so cleanup can be aggressive.
+    """
+
+    __tablename__ = "cache_store"
+
+    key: Mapped[str] = mapped_column(String, primary_key=True)
+    value: Mapped[bytes | None] = mapped_column(LargeBinary, nullable=True)
+    expires_at: Mapped[datetime.datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )

backend/onyx/db/persona.py

@@ -18,11 +18,8 @@ from sqlalchemy.orm import Session
 from onyx.access.hierarchy_access import get_user_external_group_ids
 from onyx.auth.schemas import UserRole
 from onyx.configs.app_configs import CURATORS_CANNOT_VIEW_OR_EDIT_NON_OWNED_ASSISTANTS
-from onyx.configs.chat_configs import CONTEXT_CHUNKS_ABOVE
-from onyx.configs.chat_configs import CONTEXT_CHUNKS_BELOW
 from onyx.configs.constants import DEFAULT_PERSONA_ID
 from onyx.configs.constants import NotificationType
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.constants import SLACK_BOT_PERSONA_PREFIX
 from onyx.db.document_access import get_accessible_documents_by_ids
 from onyx.db.models import ConnectorCredentialPair
@@ -254,13 +251,15 @@ def create_update_persona(
     # Permission to actually use these is checked later
 
     try:
-        # Default persona validation
-        if create_persona_request.is_default_persona:
-            # Curators can edit default personas, but not make them
+        # Featured persona validation
+        if create_persona_request.featured:
+
+            # Curators can edit featured personas, but not make them
+            # TODO this will be reworked soon with RBAC permissions feature
             if user.role == UserRole.CURATOR or user.role == UserRole.GLOBAL_CURATOR:
                 pass
             elif user.role != UserRole.ADMIN:
-                raise ValueError("Only admins can make a default persona")
+                raise ValueError("Only admins can make a featured persona")
 
         # Convert incoming string UUIDs to UUID objects for DB operations
         converted_user_file_ids = None
@@ -281,7 +280,6 @@ def create_update_persona(
             document_set_ids=create_persona_request.document_set_ids,
             tool_ids=create_persona_request.tool_ids,
             is_public=create_persona_request.is_public,
-            recency_bias=create_persona_request.recency_bias,
             llm_model_provider_override=create_persona_request.llm_model_provider_override,
             llm_model_version_override=create_persona_request.llm_model_version_override,
             starter_messages=create_persona_request.starter_messages,
@@ -295,10 +293,7 @@ def create_update_persona(
             remove_image=create_persona_request.remove_image,
             search_start_date=create_persona_request.search_start_date,
             label_ids=create_persona_request.label_ids,
-            num_chunks=create_persona_request.num_chunks,
-            llm_relevance_filter=create_persona_request.llm_relevance_filter,
-            llm_filter_extraction=create_persona_request.llm_filter_extraction,
-            is_default_persona=create_persona_request.is_default_persona,
+            featured=create_persona_request.featured,
             user_file_ids=converted_user_file_ids,
             commit=False,
             hierarchy_node_ids=create_persona_request.hierarchy_node_ids,
@@ -874,10 +869,6 @@ def upsert_persona(
     user: User | None,
     name: str,
     description: str,
-    num_chunks: float,
-    llm_relevance_filter: bool,
-    llm_filter_extraction: bool,
-    recency_bias: RecencyBiasSetting,
     llm_model_provider_override: str | None,
     llm_model_version_override: str | None,
     starter_messages: list[StarterMessage] | None,
@@ -898,13 +889,11 @@ def upsert_persona(
     remove_image: bool | None = None,
     search_start_date: datetime | None = None,
     builtin_persona: bool = False,
-    is_default_persona: bool | None = None,
+    featured: bool | None = None,
     label_ids: list[int] | None = None,
     user_file_ids: list[UUID] | None = None,
     hierarchy_node_ids: list[int] | None = None,
     document_ids: list[str] | None = None,
-    chunks_above: int = CONTEXT_CHUNKS_ABOVE,
-    chunks_below: int = CONTEXT_CHUNKS_BELOW,
     replace_base_system_prompt: bool = False,
 ) -> Persona:
     """
@@ -1015,12 +1004,6 @@ def upsert_persona(
         # `default` and `built-in` properties can only be set when creating a persona.
         existing_persona.name = name
         existing_persona.description = description
-        existing_persona.num_chunks = num_chunks
-        existing_persona.chunks_above = chunks_above
-        existing_persona.chunks_below = chunks_below
-        existing_persona.llm_relevance_filter = llm_relevance_filter
-        existing_persona.llm_filter_extraction = llm_filter_extraction
-        existing_persona.recency_bias = recency_bias
         existing_persona.llm_model_provider_override = llm_model_provider_override
         existing_persona.llm_model_version_override = llm_model_version_override
         existing_persona.starter_messages = starter_messages
@@ -1034,10 +1017,8 @@ def upsert_persona(
         if label_ids is not None:
             existing_persona.labels.clear()
             existing_persona.labels = labels or []
-        existing_persona.is_default_persona = (
-            is_default_persona
-            if is_default_persona is not None
-            else existing_persona.is_default_persona
+        existing_persona.featured = (
+            featured if featured is not None else existing_persona.featured
         )
         # Update embedded prompt fields if provided
         if system_prompt is not None:
@@ -1090,12 +1071,6 @@ def upsert_persona(
             is_public=is_public,
             name=name,
             description=description,
-            num_chunks=num_chunks,
-            chunks_above=chunks_above,
-            chunks_below=chunks_below,
-            llm_relevance_filter=llm_relevance_filter,
-            llm_filter_extraction=llm_filter_extraction,
-            recency_bias=recency_bias,
             builtin_persona=builtin_persona,
             system_prompt=system_prompt or "",
             task_prompt=task_prompt or "",
@@ -1111,9 +1086,7 @@ def upsert_persona(
             display_priority=display_priority,
             is_visible=is_visible,
             search_start_date=search_start_date,
-            is_default_persona=(
-                is_default_persona if is_default_persona is not None else False
-            ),
+            featured=(featured if featured is not None else False),
             user_files=user_files or [],
             labels=labels or [],
             hierarchy_nodes=hierarchy_nodes or [],
@@ -1158,9 +1131,9 @@ def delete_old_default_personas(
     db_session.commit()
 
 
-def update_persona_is_default(
+def update_persona_featured(
     persona_id: int,
-    is_default: bool,
+    featured: bool,
     db_session: Session,
     user: User,
 ) -> None:
@@ -1168,7 +1141,7 @@ def update_persona_is_default(
         db_session=db_session, persona_id=persona_id, user=user, get_editable=True
     )
 
-    persona.is_default_persona = is_default
+    persona.featured = featured
     db_session.commit()
 
 

backend/onyx/db/projects.py

@@ -9,8 +9,9 @@ from pydantic import BaseModel
 from pydantic import ConfigDict
 from sqlalchemy import func
 from sqlalchemy.orm import Session
+from starlette.background import BackgroundTasks
 
-from onyx.background.celery.versioned_apps.client import app as client_app
+from onyx.configs.app_configs import DISABLE_VECTOR_DB
 from onyx.configs.constants import FileOrigin
 from onyx.configs.constants import OnyxCeleryPriority
 from onyx.configs.constants import OnyxCeleryQueues
@@ -105,8 +106,8 @@ def upload_files_to_user_files_with_indexing(
     user: User,
     temp_id_map: dict[str, str] | None,
     db_session: Session,
+    background_tasks: BackgroundTasks | None = None,
 ) -> CategorizedFilesResult:
-    # Validate project ownership if a project_id is provided
     if project_id is not None and user is not None:
         if not check_project_ownership(project_id, user.id, db_session):
             raise HTTPException(status_code=404, detail="Project not found")
@@ -127,16 +128,27 @@ def upload_files_to_user_files_with_indexing(
         logger.warning(
             f"File {rejected_file.filename} rejected for {rejected_file.reason}"
         )
-    for user_file in user_files:
-        task = client_app.send_task(
-            OnyxCeleryTask.PROCESS_SINGLE_USER_FILE,
-            kwargs={"user_file_id": user_file.id, "tenant_id": tenant_id},
-            queue=OnyxCeleryQueues.USER_FILE_PROCESSING,
-            priority=OnyxCeleryPriority.HIGH,
-        )
-        logger.info(
-            f"Triggered indexing for user_file_id={user_file.id} with task_id={task.id}"
-        )
+
+    if DISABLE_VECTOR_DB and background_tasks is not None:
+        from onyx.background.task_utils import drain_processing_loop
+
+        background_tasks.add_task(drain_processing_loop, tenant_id)
+        for user_file in user_files:
+            logger.info(f"Queued in-process processing for user_file_id={user_file.id}")
+    else:
+        from onyx.background.celery.versioned_apps.client import app as client_app
+
+        for user_file in user_files:
+            task = client_app.send_task(
+                OnyxCeleryTask.PROCESS_SINGLE_USER_FILE,
+                kwargs={"user_file_id": user_file.id, "tenant_id": tenant_id},
+                queue=OnyxCeleryQueues.USER_FILE_PROCESSING,
+                priority=OnyxCeleryPriority.HIGH,
+            )
+            logger.info(
+                f"Triggered indexing for user_file_id={user_file.id} "
+                f"with task_id={task.id}"
+            )
 
     return CategorizedFilesResult(
         user_files=user_files,

backend/onyx/db/slack_channel_config.py

@@ -5,8 +5,6 @@ from sqlalchemy import select
 from sqlalchemy.orm import joinedload
 from sqlalchemy.orm import Session
 
-from onyx.configs.chat_configs import MAX_CHUNKS_FED_TO_CHAT
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.constants import DEFAULT_PERSONA_SLACK_CHANNEL_NAME
 from onyx.db.constants import SLACK_BOT_PERSONA_PREFIX
 from onyx.db.models import ChannelConfig
@@ -45,8 +43,6 @@ def create_slack_channel_persona(
     channel_name: str | None,
     document_set_ids: list[int],
     existing_persona_id: int | None = None,
-    num_chunks: float = MAX_CHUNKS_FED_TO_CHAT,
-    enable_auto_filters: bool = False,
 ) -> Persona:
     """NOTE: does not commit changes"""
 
@@ -73,17 +69,13 @@ def create_slack_channel_persona(
         system_prompt="",
         task_prompt="",
         datetime_aware=True,
-        num_chunks=num_chunks,
-        llm_relevance_filter=True,
-        llm_filter_extraction=enable_auto_filters,
-        recency_bias=RecencyBiasSetting.AUTO,
         tool_ids=[search_tool.id],
         document_set_ids=document_set_ids,
         llm_model_provider_override=None,
         llm_model_version_override=None,
         starter_messages=None,
         is_public=True,
-        is_default_persona=False,
+        featured=False,
         db_session=db_session,
         commit=False,
     )

backend/onyx/document_index/opensearch/opensearch_document_index.py

@@ -6,7 +6,6 @@ import httpx
 from opensearchpy import NotFoundError
 
 from onyx.access.models import DocumentAccess
-from onyx.configs.app_configs import USING_AWS_MANAGED_OPENSEARCH
 from onyx.configs.app_configs import VERIFY_CREATE_OPENSEARCH_INDEX_ON_INIT_MT
 from onyx.configs.chat_configs import NUM_RETURNED_HITS
 from onyx.configs.chat_configs import TITLE_CONTENT_RATIO
@@ -563,12 +562,7 @@ class OpenSearchDocumentIndex(DocumentIndex):
         )
 
         if not self._client.index_exists():
-            if USING_AWS_MANAGED_OPENSEARCH:
-                index_settings = (
-                    DocumentSchema.get_index_settings_for_aws_managed_opensearch()
-                )
-            else:
-                index_settings = DocumentSchema.get_index_settings()
+            index_settings = DocumentSchema.get_index_settings_based_on_environment()
             self._client.create_index(
                 mappings=expected_mappings,
                 settings=index_settings,

backend/onyx/document_index/opensearch/schema.py

@@ -12,6 +12,7 @@ from pydantic import model_validator
 from pydantic import SerializerFunctionWrapHandler
 
 from onyx.configs.app_configs import OPENSEARCH_TEXT_ANALYZER
+from onyx.configs.app_configs import USING_AWS_MANAGED_OPENSEARCH
 from onyx.document_index.interfaces_new import TenantState
 from onyx.document_index.opensearch.constants import DEFAULT_MAX_CHUNK_SIZE
 from onyx.document_index.opensearch.constants import EF_CONSTRUCTION
@@ -525,7 +526,7 @@ class DocumentSchema:
         }
 
     @staticmethod
-    def get_index_settings_for_aws_managed_opensearch() -> dict[str, Any]:
+    def get_index_settings_for_aws_managed_opensearch_st_dev() -> dict[str, Any]:
         """
         Settings for AWS-managed OpenSearch.
 
@@ -546,3 +547,41 @@ class DocumentSchema:
                 "knn.algo_param.ef_search": EF_SEARCH,
             }
         }
+
+    @staticmethod
+    def get_index_settings_for_aws_managed_opensearch_mt_cloud() -> dict[str, Any]:
+        """
+        Settings for AWS-managed OpenSearch in multi-tenant cloud.
+
+        324 shards very roughly targets a storage load of ~30Gb per shard, which
+        according to AWS OpenSearch documentation is within a good target range.
+
+        As documented above we need 2 replicas for a total of 3 copies of the
+        data because the cluster is configured with 3-AZ awareness.
+        """
+        return {
+            "index": {
+                "number_of_shards": 324,
+                "number_of_replicas": 2,
+                # Required for vector search.
+                "knn": True,
+                "knn.algo_param.ef_search": EF_SEARCH,
+            }
+        }
+
+    @staticmethod
+    def get_index_settings_based_on_environment() -> dict[str, Any]:
+        """
+        Returns the index settings based on the environment.
+        """
+        if USING_AWS_MANAGED_OPENSEARCH:
+            if MULTI_TENANT:
+                return (
+                    DocumentSchema.get_index_settings_for_aws_managed_opensearch_mt_cloud()
+                )
+            else:
+                return (
+                    DocumentSchema.get_index_settings_for_aws_managed_opensearch_st_dev()
+                )
+        else:
+            return DocumentSchema.get_index_settings()

backend/onyx/federated_connectors/oauth_utils.py

@@ -4,39 +4,33 @@ import base64
 import json
 import uuid
 from typing import Any
-from typing import cast
-from typing import Dict
-from typing import Optional
 
+from onyx.cache.factory import get_cache_backend
 from onyx.configs.app_configs import WEB_DOMAIN
-from onyx.redis.redis_pool import get_redis_client
 from onyx.utils.logger import setup_logger
 
 logger = setup_logger()
 
-# Redis key prefix for OAuth state
 OAUTH_STATE_PREFIX = "federated_oauth"
-# Default TTL for OAuth state (5 minutes)
-OAUTH_STATE_TTL = 300
+OAUTH_STATE_TTL = 300  # 5 minutes
 
 
 class OAuthSession:
-    """Represents an OAuth session stored in Redis."""
+    """Represents an OAuth session stored in the cache backend."""
 
     def __init__(
         self,
         federated_connector_id: int,
         user_id: str,
-        redirect_uri: Optional[str] = None,
-        additional_data: Optional[Dict[str, Any]] = None,
+        redirect_uri: str | None = None,
+        additional_data: dict[str, Any] | None = None,
     ):
         self.federated_connector_id = federated_connector_id
         self.user_id = user_id
         self.redirect_uri = redirect_uri
         self.additional_data = additional_data or {}
 
-    def to_dict(self) -> Dict[str, Any]:
-        """Convert to dictionary for Redis storage."""
+    def to_dict(self) -> dict[str, Any]:
         return {
             "federated_connector_id": self.federated_connector_id,
             "user_id": self.user_id,
@@ -45,8 +39,7 @@ class OAuthSession:
         }
 
     @classmethod
-    def from_dict(cls, data: Dict[str, Any]) -> "OAuthSession":
-        """Create from dictionary retrieved from Redis."""
+    def from_dict(cls, data: dict[str, Any]) -> "OAuthSession":
         return cls(
             federated_connector_id=data["federated_connector_id"],
             user_id=data["user_id"],
@@ -58,31 +51,27 @@ class OAuthSession:
 def generate_oauth_state(
     federated_connector_id: int,
     user_id: str,
-    redirect_uri: Optional[str] = None,
-    additional_data: Optional[Dict[str, Any]] = None,
+    redirect_uri: str | None = None,
+    additional_data: dict[str, Any] | None = None,
     ttl: int = OAUTH_STATE_TTL,
 ) -> str:
     """
-    Generate a secure state parameter and store session data in Redis.
+    Generate a secure state parameter and store session data in the cache backend.
 
     Args:
         federated_connector_id: ID of the federated connector
         user_id: ID of the user initiating OAuth
         redirect_uri: Optional redirect URI after OAuth completion
         additional_data: Any additional data to store with the session
-        ttl: Time-to-live in seconds for the Redis key
+        ttl: Time-to-live in seconds for the cache key
 
     Returns:
         Base64-encoded state parameter
     """
     # Generate a random UUID for the state
     state_uuid = uuid.uuid4()
+    state_b64 = base64.urlsafe_b64encode(state_uuid.bytes).decode("utf-8").rstrip("=")
 
-    # Convert UUID to base64 for URL-safe state parameter
-    state_bytes = state_uuid.bytes
-    state_b64 = base64.urlsafe_b64encode(state_bytes).decode("utf-8").rstrip("=")
-
-    # Create session object
     session = OAuthSession(
         federated_connector_id=federated_connector_id,
         user_id=user_id,
@@ -90,15 +79,9 @@ def generate_oauth_state(
         additional_data=additional_data,
     )
 
-    # Store in Redis with TTL
-    redis_client = get_redis_client()
-    redis_key = f"{OAUTH_STATE_PREFIX}:{state_uuid}"
-
-    redis_client.set(
-        redis_key,
-        json.dumps(session.to_dict()),
-        ex=ttl,
-    )
+    cache = get_cache_backend()
+    cache_key = f"{OAUTH_STATE_PREFIX}:{state_uuid}"
+    cache.set(cache_key, json.dumps(session.to_dict()), ex=ttl)
 
     logger.info(
         f"Generated OAuth state for federated_connector_id={federated_connector_id}, "
@@ -125,18 +108,15 @@ def verify_oauth_state(state: str) -> OAuthSession:
     state_bytes = base64.urlsafe_b64decode(padded_state)
     state_uuid = uuid.UUID(bytes=state_bytes)
 
-    # Look up in Redis
-    redis_client = get_redis_client()
-    redis_key = f"{OAUTH_STATE_PREFIX}:{state_uuid}"
+    cache = get_cache_backend()
+    cache_key = f"{OAUTH_STATE_PREFIX}:{state_uuid}"
 
-    session_data = cast(bytes, redis_client.get(redis_key))
+    session_data = cache.get(cache_key)
     if not session_data:
-        raise ValueError(f"OAuth state not found in Redis: {state}")
+        raise ValueError(f"OAuth state not found: {state}")
 
-    # Delete the key after retrieval (one-time use)
-    redis_client.delete(redis_key)
+    cache.delete(cache_key)
 
-    # Parse and return session
     session_dict = json.loads(session_data)
     return OAuthSession.from_dict(session_dict)
 

backend/onyx/key_value_store/store.py

@@ -1,13 +1,11 @@
 import json
 from typing import cast
 
-from redis.client import Redis
-
+from onyx.cache.interface import CacheBackend
 from onyx.db.engine.sql_engine import get_session_with_current_tenant
 from onyx.db.models import KVStore
 from onyx.key_value_store.interface import KeyValueStore
 from onyx.key_value_store.interface import KvKeyNotFoundError
-from onyx.redis.redis_pool import get_redis_client
 from onyx.utils.logger import setup_logger
 from onyx.utils.special_types import JSON_ro
 
@@ -20,22 +18,27 @@ KV_REDIS_KEY_EXPIRATION = 60 * 60 * 24  # 1 Day
 
 
 class PgRedisKVStore(KeyValueStore):
-    def __init__(self, redis_client: Redis | None = None) -> None:
-        # If no redis_client is provided, fall back to the context var
-        if redis_client is not None:
-            self.redis_client = redis_client
-        else:
-            self.redis_client = get_redis_client()
+    def __init__(self, cache: CacheBackend | None = None) -> None:
+        self._cache = cache
+
+    def _get_cache(self) -> CacheBackend:
+        if self._cache is None:
+            from onyx.cache.factory import get_cache_backend
+
+            self._cache = get_cache_backend()
+        return self._cache
 
     def store(self, key: str, val: JSON_ro, encrypt: bool = False) -> None:
-        # Not encrypted in Redis, but encrypted in Postgres
+        # Not encrypted in Cache backend (typically Redis), but encrypted in Postgres
         try:
-            self.redis_client.set(
+            self._get_cache().set(
                 REDIS_KEY_PREFIX + key, json.dumps(val), ex=KV_REDIS_KEY_EXPIRATION
             )
         except Exception as e:
-            # Fallback gracefully to Postgres if Redis fails
-            logger.error(f"Failed to set value in Redis for key '{key}': {str(e)}")
+            # Fallback gracefully to Postgres if Cache backend fails
+            logger.error(
+                f"Failed to set value in Cache backend for key '{key}': {str(e)}"
+            )
 
         encrypted_val = val if encrypt else None
         plain_val = val if not encrypt else None
@@ -53,16 +56,12 @@ class PgRedisKVStore(KeyValueStore):
     def load(self, key: str, refresh_cache: bool = False) -> JSON_ro:
         if not refresh_cache:
             try:
-                redis_value = self.redis_client.get(REDIS_KEY_PREFIX + key)
-                if redis_value:
-                    if not isinstance(redis_value, bytes):
-                        raise ValueError(
-                            f"Redis value for key '{key}' is not a bytes object"
-                        )
-                    return json.loads(redis_value.decode("utf-8"))
+                cached = self._get_cache().get(REDIS_KEY_PREFIX + key)
+                if cached is not None:
+                    return json.loads(cached.decode("utf-8"))
             except Exception as e:
                 logger.error(
-                    f"Failed to get value from Redis for key '{key}': {str(e)}"
+                    f"Failed to get value from cache for key '{key}': {str(e)}"
                 )
 
         with get_session_with_current_tenant() as db_session:
@@ -79,21 +78,21 @@ class PgRedisKVStore(KeyValueStore):
                 value = None
 
             try:
-                self.redis_client.set(
+                self._get_cache().set(
                     REDIS_KEY_PREFIX + key,
                     json.dumps(value),
                     ex=KV_REDIS_KEY_EXPIRATION,
                 )
             except Exception as e:
-                logger.error(f"Failed to set value in Redis for key '{key}': {str(e)}")
+                logger.error(f"Failed to set value in cache for key '{key}': {str(e)}")
 
             return cast(JSON_ro, value)
 
     def delete(self, key: str) -> None:
         try:
-            self.redis_client.delete(REDIS_KEY_PREFIX + key)
+            self._get_cache().delete(REDIS_KEY_PREFIX + key)
         except Exception as e:
-            logger.error(f"Failed to delete value from Redis for key '{key}': {str(e)}")
+            logger.error(f"Failed to delete value from cache for key '{key}': {str(e)}")
 
         with get_session_with_current_tenant() as db_session:
             result = db_session.query(KVStore).filter_by(key=key).delete()

backend/onyx/llm/litellm_singleton/monkey_patches.py

@@ -67,6 +67,18 @@ Status checked against LiteLLM v1.81.6-nightly (2026-02-02):
    STATUS: STILL NEEDED - litellm_core_utils/litellm_logging.py lines 3185-3199 set
            usage as a dict with chat completion format instead of keeping it as
            ResponseAPIUsage. Our patch creates a deep copy before modification.
+
+7. Responses API metadata=None TypeError (_patch_responses_metadata_none):
+   - LiteLLM's @client decorator wrapper in utils.py uses kwargs.get("metadata", {})
+     to check for router calls, but when metadata is explicitly None (key exists with
+     value None), the default {} is not used
+   - This causes "argument of type 'NoneType' is not iterable" TypeError which swallows
+     the real exception (e.g. AuthenticationError for wrong API key)
+   - Surfaces as: APIConnectionError: OpenAIException - argument of type 'NoneType' is
+     not iterable
+   STATUS: STILL NEEDED - litellm/utils.py wrapper function (line 1721) does not guard
+           against metadata being explicitly None. Triggered when Responses API bridge
+           passes **litellm_params containing metadata=None.
 """
 
 import time
@@ -725,6 +737,44 @@ def _patch_logging_assembled_streaming_response() -> None:
     LiteLLMLoggingObj._get_assembled_streaming_response = _patched_get_assembled_streaming_response  # type: ignore[method-assign]
 
 
+def _patch_responses_metadata_none() -> None:
+    """
+    Patches litellm.responses to normalize metadata=None to metadata={} in kwargs.
+
+    LiteLLM's @client decorator wrapper in utils.py (line 1721) does:
+        _is_litellm_router_call = "model_group" in kwargs.get("metadata", {})
+    When metadata is explicitly None in kwargs, kwargs.get("metadata", {}) returns
+    None (the key exists, so the default is not used), causing:
+        TypeError: argument of type 'NoneType' is not iterable
+
+    This swallows the real exception (e.g. AuthenticationError) and surfaces as:
+        APIConnectionError: OpenAIException - argument of type 'NoneType' is not iterable
+
+    This happens when the Responses API bridge calls litellm.responses() with
+    **litellm_params which may contain metadata=None.
+
+    STATUS: STILL NEEDED - litellm/utils.py wrapper function uses kwargs.get("metadata", {})
+            which does not guard against metadata being explicitly None. Same pattern exists
+            on line 1407 for async path.
+    """
+    import litellm as _litellm
+    from functools import wraps
+
+    original_responses = _litellm.responses
+
+    if getattr(original_responses, "_metadata_patched", False):
+        return
+
+    @wraps(original_responses)
+    def _patched_responses(*args: Any, **kwargs: Any) -> Any:
+        if kwargs.get("metadata") is None:
+            kwargs["metadata"] = {}
+        return original_responses(*args, **kwargs)
+
+    _patched_responses._metadata_patched = True  # type: ignore[attr-defined]
+    _litellm.responses = _patched_responses
+
+
 def apply_monkey_patches() -> None:
     """
     Apply all necessary monkey patches to LiteLLM for compatibility.
@@ -736,6 +786,7 @@ def apply_monkey_patches() -> None:
     - Patching AzureOpenAIResponsesAPIConfig.should_fake_stream to enable native streaming
     - Patching ResponsesAPIResponse.model_construct to fix usage format in all code paths
     - Patching LiteLLMLoggingObj._get_assembled_streaming_response to avoid mutating original response
+    - Patching litellm.responses to fix metadata=None causing TypeError in error handling
     """
     _patch_ollama_chunk_parser()
     _patch_openai_responses_parallel_tool_calls()
@@ -743,3 +794,4 @@ def apply_monkey_patches() -> None:
     _patch_azure_responses_should_fake_stream()
     _patch_responses_api_usage_format()
     _patch_logging_assembled_streaming_response()
+    _patch_responses_metadata_none()

backend/onyx/llm/well_known_providers/auto_update_service.py

@@ -13,44 +13,38 @@ from datetime import datetime
 import httpx
 from sqlalchemy.orm import Session
 
+from onyx.cache.factory import get_cache_backend
 from onyx.configs.app_configs import AUTO_LLM_CONFIG_URL
 from onyx.db.llm import fetch_auto_mode_providers
 from onyx.db.llm import sync_auto_mode_models
 from onyx.llm.well_known_providers.auto_update_models import LLMRecommendations
-from onyx.redis.redis_pool import get_redis_client
 from onyx.utils.logger import setup_logger
 
 logger = setup_logger()
 
-# Redis key for caching the last updated timestamp (per-tenant)
-_REDIS_KEY_LAST_UPDATED_AT = "auto_llm_update:last_updated_at"
+_CACHE_KEY_LAST_UPDATED_AT = "auto_llm_update:last_updated_at"
+_CACHE_TTL_SECONDS = 60 * 60 * 24  # 24 hours
 
 
 def _get_cached_last_updated_at() -> datetime | None:
-    """Get the cached last_updated_at timestamp from Redis."""
     try:
-        redis_client = get_redis_client()
-        value = redis_client.get(_REDIS_KEY_LAST_UPDATED_AT)
-        if value and isinstance(value, bytes):
-            # Value is bytes, decode to string then parse as ISO format
+        value = get_cache_backend().get(_CACHE_KEY_LAST_UPDATED_AT)
+        if value is not None:
             return datetime.fromisoformat(value.decode("utf-8"))
     except Exception as e:
-        logger.warning(f"Failed to get cached last_updated_at from Redis: {e}")
+        logger.warning(f"Failed to get cached last_updated_at: {e}")
     return None
 
 
 def _set_cached_last_updated_at(updated_at: datetime) -> None:
-    """Set the cached last_updated_at timestamp in Redis."""
     try:
-        redis_client = get_redis_client()
-        # Store as ISO format string, with 24 hour expiration
-        redis_client.set(
-            _REDIS_KEY_LAST_UPDATED_AT,
+        get_cache_backend().set(
+            _CACHE_KEY_LAST_UPDATED_AT,
             updated_at.isoformat(),
-            ex=60 * 60 * 24,  # 24 hours
+            ex=_CACHE_TTL_SECONDS,
         )
     except Exception as e:
-        logger.warning(f"Failed to set cached last_updated_at in Redis: {e}")
+        logger.warning(f"Failed to set cached last_updated_at: {e}")
 
 
 def fetch_llm_recommendations_from_github(
@@ -148,9 +142,8 @@ def sync_llm_models_from_github(
 
 
 def reset_cache() -> None:
-    """Reset the cache timestamp in Redis. Useful for testing."""
+    """Reset the cache timestamp. Useful for testing."""
     try:
-        redis_client = get_redis_client()
-        redis_client.delete(_REDIS_KEY_LAST_UPDATED_AT)
+        get_cache_backend().delete(_CACHE_KEY_LAST_UPDATED_AT)
     except Exception as e:
-        logger.warning(f"Failed to reset cache in Redis: {e}")
+        logger.warning(f"Failed to reset cache: {e}")

backend/onyx/main.py

@@ -32,11 +32,14 @@ from onyx.auth.schemas import UserUpdate
 from onyx.auth.users import auth_backend
 from onyx.auth.users import create_onyx_oauth_router
 from onyx.auth.users import fastapi_users
+from onyx.cache.interface import CacheBackendType
 from onyx.configs.app_configs import APP_API_PREFIX
 from onyx.configs.app_configs import APP_HOST
 from onyx.configs.app_configs import APP_PORT
 from onyx.configs.app_configs import AUTH_RATE_LIMITING_ENABLED
 from onyx.configs.app_configs import AUTH_TYPE
+from onyx.configs.app_configs import CACHE_BACKEND
+from onyx.configs.app_configs import DISABLE_VECTOR_DB
 from onyx.configs.app_configs import LOG_ENDPOINT_LATENCY
 from onyx.configs.app_configs import OAUTH_CLIENT_ID
 from onyx.configs.app_configs import OAUTH_CLIENT_SECRET
@@ -254,8 +257,53 @@ def include_auth_router_with_prefix(
     )
 
 
+def validate_cache_backend_settings() -> None:
+    """Validate that CACHE_BACKEND=postgres is only used with DISABLE_VECTOR_DB.
+
+    The Postgres cache backend eliminates the Redis dependency, but only works
+    when Celery is not running (which requires DISABLE_VECTOR_DB=true).
+    """
+    if CACHE_BACKEND == CacheBackendType.POSTGRES and not DISABLE_VECTOR_DB:
+        raise RuntimeError(
+            "CACHE_BACKEND=postgres requires DISABLE_VECTOR_DB=true. "
+            "The Postgres cache backend is only supported in no-vector-DB "
+            "deployments where Celery is replaced by the in-process task runner."
+        )
+
+
+def validate_no_vector_db_settings() -> None:
+    """Validate that DISABLE_VECTOR_DB is not combined with incompatible settings.
+
+    Raises RuntimeError if DISABLE_VECTOR_DB is set alongside MULTI_TENANT or ENABLE_CRAFT,
+    since these modes require infrastructure that is removed in no-vector-DB deployments.
+    """
+    if not DISABLE_VECTOR_DB:
+        return
+
+    if MULTI_TENANT:
+        raise RuntimeError(
+            "DISABLE_VECTOR_DB cannot be used with MULTI_TENANT. "
+            "Multi-tenant deployments require the vector database for "
+            "per-tenant document indexing and search. Run in single-tenant "
+            "mode when disabling the vector database."
+        )
+
+    from onyx.server.features.build.configs import ENABLE_CRAFT
+
+    if ENABLE_CRAFT:
+        raise RuntimeError(
+            "DISABLE_VECTOR_DB cannot be used with ENABLE_CRAFT. "
+            "Onyx Craft requires background workers for sandbox lifecycle "
+            "management, which are removed in no-vector-DB deployments. "
+            "Disable Craft (ENABLE_CRAFT=false) when disabling the vector database."
+        )
+
+
 @asynccontextmanager
 async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:  # noqa: ARG001
+    validate_no_vector_db_settings()
+    validate_cache_backend_settings()
+
     # Set recursion limit
     if SYSTEM_RECURSION_LIMIT is not None:
         sys.setrecursionlimit(SYSTEM_RECURSION_LIMIT)
@@ -324,8 +372,20 @@ async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:  # noqa: ARG001
     if AUTH_RATE_LIMITING_ENABLED:
         await setup_auth_limiter()
 
+    if DISABLE_VECTOR_DB:
+        from onyx.background.periodic_poller import recover_stuck_user_files
+        from onyx.background.periodic_poller import start_periodic_poller
+
+        recover_stuck_user_files(POSTGRES_DEFAULT_SCHEMA)
+        start_periodic_poller(POSTGRES_DEFAULT_SCHEMA)
+
     yield
 
+    if DISABLE_VECTOR_DB:
+        from onyx.background.periodic_poller import stop_periodic_poller
+
+        stop_periodic_poller()
+
     SqlEngine.reset_engine()
 
     if AUTH_RATE_LIMITING_ENABLED:

backend/onyx/onyxbot/slack/handlers/handle_message.py

@@ -3,10 +3,12 @@ import datetime
 from slack_sdk import WebClient
 from slack_sdk.errors import SlackApiError
 
+from onyx.auth.schemas import UserRole
 from onyx.configs.onyxbot_configs import ONYX_BOT_FEEDBACK_REMINDER
 from onyx.configs.onyxbot_configs import ONYX_BOT_REACT_EMOJI
 from onyx.db.engine.sql_engine import get_session_with_current_tenant
 from onyx.db.models import SlackChannelConfig
+from onyx.db.user_preferences import activate_user
 from onyx.db.users import add_slack_user_if_not_exists
 from onyx.db.users import get_user_by_email
 from onyx.onyxbot.slack.blocks import get_feedback_reminder_blocks
@@ -243,6 +245,44 @@ def handle_message(
                     )
                     return False
 
+            elif (
+                not existing_user.is_active
+                and existing_user.role == UserRole.SLACK_USER
+            ):
+                check_seat_fn = fetch_ee_implementation_or_noop(
+                    "onyx.db.license",
+                    "check_seat_availability",
+                    None,
+                )
+                seat_result = check_seat_fn(db_session=db_session)
+                if seat_result is not None and not seat_result.available:
+                    logger.info(
+                        f"Blocked inactive Slack user {message_info.email}: "
+                        f"{seat_result.error_message}"
+                    )
+                    respond_in_thread_or_channel(
+                        client=client,
+                        channel=channel,
+                        thread_ts=message_info.msg_to_respond,
+                        text=(
+                            "We weren't able to respond because your organization "
+                            "has reached its user seat limit. Your account is "
+                            "currently deactivated and cannot be reactivated "
+                            "until more seats are available. Please contact "
+                            "your Onyx administrator."
+                        ),
+                    )
+                    return False
+
+                activate_user(existing_user, db_session)
+                invalidate_license_cache_fn = fetch_ee_implementation_or_noop(
+                    "onyx.db.license",
+                    "invalidate_license_cache",
+                    None,
+                )
+                invalidate_license_cache_fn()
+                logger.info(f"Reactivated inactive Slack user {message_info.email}")
+
             add_slack_user_if_not_exists(db_session, message_info.email)
 
         # first check if we need to respond with a standard answer

backend/onyx/server/features/build/sandbox/kubernetes/kubernetes_sandbox_manager.py

@@ -1133,7 +1133,8 @@ done
                 # Already deleted
                 service_deleted = True
             else:
-                logger.warning(f"Error deleting Service {service_name}: {e}")
+                logger.error(f"Error deleting Service {service_name}: {e}")
+                raise
 
         pod_deleted = False
         try:
@@ -1148,7 +1149,8 @@ done
                 # Already deleted
                 pod_deleted = True
             else:
-                logger.warning(f"Error deleting Pod {pod_name}: {e}")
+                logger.error(f"Error deleting Pod {pod_name}: {e}")
+                raise
 
         # Wait for resources to be fully deleted to prevent 409 conflicts
         # on immediate re-provisioning

backend/onyx/server/features/build/sandbox/tasks/tasks.py

@@ -80,7 +80,7 @@ def cleanup_idle_sandboxes_task(self: Task, *, tenant_id: str) -> None:  # noqa:
 
     # Prevent overlapping runs of this task
     if not lock.acquire(blocking=False):
-        task_logger.debug("cleanup_idle_sandboxes_task - lock not acquired, skipping")
+        task_logger.info("cleanup_idle_sandboxes_task - lock not acquired, skipping")
         return
 
     try:

backend/onyx/server/features/persona/api.py

@@ -32,7 +32,7 @@ from onyx.db.persona import get_persona_snapshots_for_user
 from onyx.db.persona import get_persona_snapshots_paginated
 from onyx.db.persona import mark_persona_as_deleted
 from onyx.db.persona import mark_persona_as_not_deleted
-from onyx.db.persona import update_persona_is_default
+from onyx.db.persona import update_persona_featured
 from onyx.db.persona import update_persona_label
 from onyx.db.persona import update_persona_public_status
 from onyx.db.persona import update_persona_shared
@@ -130,8 +130,8 @@ class IsPublicRequest(BaseModel):
     is_public: bool
 
 
-class IsDefaultRequest(BaseModel):
-    is_default_persona: bool
+class IsFeaturedRequest(BaseModel):
+    featured: bool
 
 
 @admin_router.patch("/{persona_id}/visible")
@@ -168,22 +168,22 @@ def patch_user_persona_public_status(
         raise HTTPException(status_code=403, detail=str(e))
 
 
-@admin_router.patch("/{persona_id}/default")
-def patch_persona_default_status(
+@admin_router.patch("/{persona_id}/featured")
+def patch_persona_featured_status(
     persona_id: int,
-    is_default_request: IsDefaultRequest,
+    is_featured_request: IsFeaturedRequest,
     user: User = Depends(current_curator_or_admin_user),
     db_session: Session = Depends(get_session),
 ) -> None:
     try:
-        update_persona_is_default(
+        update_persona_featured(
             persona_id=persona_id,
-            is_default=is_default_request.is_default_persona,
+            featured=is_featured_request.featured,
             db_session=db_session,
             user=user,
         )
     except ValueError as e:
-        logger.exception("Failed to update persona default status")
+        logger.exception("Failed to update persona featured status")
         raise HTTPException(status_code=403, detail=str(e))
 
 

backend/onyx/server/features/persona/models.py

@@ -5,7 +5,6 @@ from pydantic import BaseModel
 from pydantic import Field
 
 from onyx.configs.constants import DocumentSource
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.enums import HierarchyNodeType
 from onyx.db.models import Document
 from onyx.db.models import HierarchyNode
@@ -108,11 +107,7 @@ class PersonaUpsertRequest(BaseModel):
     name: str
     description: str
     document_set_ids: list[int]
-    num_chunks: float
     is_public: bool
-    recency_bias: RecencyBiasSetting
-    llm_filter_extraction: bool
-    llm_relevance_filter: bool
     llm_model_provider_override: str | None = None
     llm_model_version_override: str | None = None
     starter_messages: list[StarterMessage] | None = None
@@ -128,7 +123,7 @@ class PersonaUpsertRequest(BaseModel):
     )
     search_start_date: datetime | None = None
     label_ids: list[int] | None = None
-    is_default_persona: bool = False
+    featured: bool = False
     display_priority: int | None = None
     # Accept string UUIDs from frontend
     user_file_ids: list[str] | None = None
@@ -155,9 +150,6 @@ class MinimalPersonaSnapshot(BaseModel):
     tools: list[ToolSnapshot]
     starter_messages: list[StarterMessage] | None
 
-    llm_relevance_filter: bool
-    llm_filter_extraction: bool
-
     # only show document sets in the UI that the assistant has access to
     document_sets: list[DocumentSetSummary]
     # Counts for knowledge sources (used to determine if search tool should be enabled)
@@ -175,7 +167,7 @@ class MinimalPersonaSnapshot(BaseModel):
     is_public: bool
     is_visible: bool
     display_priority: int | None
-    is_default_persona: bool
+    featured: bool
     builtin_persona: bool
 
     # Used for filtering
@@ -214,8 +206,6 @@ class MinimalPersonaSnapshot(BaseModel):
                 if should_expose_tool_to_fe(tool)
             ],
             starter_messages=persona.starter_messages,
-            llm_relevance_filter=persona.llm_relevance_filter,
-            llm_filter_extraction=persona.llm_filter_extraction,
             document_sets=[
                 DocumentSetSummary.from_model(document_set)
                 for document_set in persona.document_sets
@@ -230,7 +220,7 @@ class MinimalPersonaSnapshot(BaseModel):
             is_public=persona.is_public,
             is_visible=persona.is_visible,
             display_priority=persona.display_priority,
-            is_default_persona=persona.is_default_persona,
+            featured=persona.featured,
             builtin_persona=persona.builtin_persona,
             labels=[PersonaLabelSnapshot.from_model(label) for label in persona.labels],
             owner=(
@@ -252,11 +242,9 @@ class PersonaSnapshot(BaseModel):
     # Return string UUIDs to frontend for consistency
     user_file_ids: list[str]
     display_priority: int | None
-    is_default_persona: bool
+    featured: bool
     builtin_persona: bool
     starter_messages: list[StarterMessage] | None
-    llm_relevance_filter: bool
-    llm_filter_extraction: bool
     tools: list[ToolSnapshot]
     labels: list["PersonaLabelSnapshot"]
     owner: MinimalUserSnapshot | None
@@ -265,7 +253,6 @@ class PersonaSnapshot(BaseModel):
     document_sets: list[DocumentSetSummary]
     llm_model_provider_override: str | None
     llm_model_version_override: str | None
-    num_chunks: float | None
     # Hierarchy nodes attached for scoped search
     hierarchy_nodes: list[HierarchyNodeSnapshot] = Field(default_factory=list)
     # Individual documents attached for scoped search
@@ -289,11 +276,9 @@ class PersonaSnapshot(BaseModel):
             icon_name=persona.icon_name,
             user_file_ids=[str(file.id) for file in persona.user_files],
             display_priority=persona.display_priority,
-            is_default_persona=persona.is_default_persona,
+            featured=persona.featured,
             builtin_persona=persona.builtin_persona,
             starter_messages=persona.starter_messages,
-            llm_relevance_filter=persona.llm_relevance_filter,
-            llm_filter_extraction=persona.llm_filter_extraction,
             tools=[
                 ToolSnapshot.from_model(tool)
                 for tool in persona.tools
@@ -324,7 +309,6 @@ class PersonaSnapshot(BaseModel):
             ],
             llm_model_provider_override=persona.llm_model_provider_override,
             llm_model_version_override=persona.llm_model_version_override,
-            num_chunks=persona.num_chunks,
             system_prompt=persona.system_prompt,
             replace_base_system_prompt=persona.replace_base_system_prompt,
             task_prompt=persona.task_prompt,
@@ -332,12 +316,10 @@ class PersonaSnapshot(BaseModel):
         )
 
 
-# Model with full context on perona's internal settings
+# Model with full context on persona's internal settings
 # This is used for flows which need to know all settings
 class FullPersonaSnapshot(PersonaSnapshot):
     search_start_date: datetime | None = None
-    llm_relevance_filter: bool = False
-    llm_filter_extraction: bool = False
 
     @classmethod
     def from_model(
@@ -360,7 +342,7 @@ class FullPersonaSnapshot(PersonaSnapshot):
             icon_name=persona.icon_name,
             user_file_ids=[str(file.id) for file in persona.user_files],
             display_priority=persona.display_priority,
-            is_default_persona=persona.is_default_persona,
+            featured=persona.featured,
             builtin_persona=persona.builtin_persona,
             starter_messages=persona.starter_messages,
             users=[
@@ -391,10 +373,7 @@ class FullPersonaSnapshot(PersonaSnapshot):
                 DocumentSetSummary.from_model(document_set_model)
                 for document_set_model in persona.document_sets
             ],
-            num_chunks=persona.num_chunks,
             search_start_date=persona.search_start_date,
-            llm_relevance_filter=persona.llm_relevance_filter,
-            llm_filter_extraction=persona.llm_filter_extraction,
             llm_model_provider_override=persona.llm_model_provider_override,
             llm_model_version_override=persona.llm_model_version_override,
             system_prompt=persona.system_prompt,

backend/onyx/server/features/projects/api.py

@@ -2,6 +2,7 @@ import json
 from uuid import UUID
 
 from fastapi import APIRouter
+from fastapi import BackgroundTasks
 from fastapi import Depends
 from fastapi import File
 from fastapi import Form
@@ -12,13 +13,7 @@ from pydantic import BaseModel
 from sqlalchemy.orm import Session
 
 from onyx.auth.users import current_user
-from onyx.background.celery.tasks.user_file_processing.tasks import (
-    enqueue_user_file_project_sync_task,
-)
-from onyx.background.celery.tasks.user_file_processing.tasks import (
-    get_user_file_project_sync_queue_depth,
-)
-from onyx.background.celery.versioned_apps.client import app as client_app
+from onyx.configs.app_configs import DISABLE_VECTOR_DB
 from onyx.configs.constants import OnyxCeleryPriority
 from onyx.configs.constants import OnyxCeleryQueues
 from onyx.configs.constants import OnyxCeleryTask
@@ -34,7 +29,6 @@ from onyx.db.models import UserProject
 from onyx.db.persona import get_personas_by_ids
 from onyx.db.projects import get_project_token_count
 from onyx.db.projects import upload_files_to_user_files_with_indexing
-from onyx.redis.redis_pool import get_redis_client
 from onyx.server.features.projects.models import CategorizedFilesSnapshot
 from onyx.server.features.projects.models import ChatSessionRequest
 from onyx.server.features.projects.models import TokenCountResponse
@@ -55,7 +49,27 @@ class UserFileDeleteResult(BaseModel):
     assistant_names: list[str] = []
 
 
-def _trigger_user_file_project_sync(user_file_id: UUID, tenant_id: str) -> None:
+def _trigger_user_file_project_sync(
+    user_file_id: UUID,
+    tenant_id: str,
+    background_tasks: BackgroundTasks | None = None,
+) -> None:
+    if DISABLE_VECTOR_DB and background_tasks is not None:
+        from onyx.background.task_utils import drain_project_sync_loop
+
+        background_tasks.add_task(drain_project_sync_loop, tenant_id)
+        logger.info(f"Queued in-process project sync for user_file_id={user_file_id}")
+        return
+
+    from onyx.background.celery.tasks.user_file_processing.tasks import (
+        enqueue_user_file_project_sync_task,
+    )
+    from onyx.background.celery.tasks.user_file_processing.tasks import (
+        get_user_file_project_sync_queue_depth,
+    )
+    from onyx.background.celery.versioned_apps.client import app as client_app
+    from onyx.redis.redis_pool import get_redis_client
+
     queue_depth = get_user_file_project_sync_queue_depth(client_app)
     if queue_depth > USER_FILE_PROJECT_SYNC_MAX_QUEUE_DEPTH:
         logger.warning(
@@ -111,6 +125,7 @@ def create_project(
 
 @router.post("/file/upload", tags=PUBLIC_API_TAGS)
 def upload_user_files(
+    bg_tasks: BackgroundTasks,
     files: list[UploadFile] = File(...),
     project_id: int | None = Form(None),
     temp_id_map: str | None = Form(None),  # JSON string mapping hashed key -> temp_id
@@ -137,12 +152,12 @@ def upload_user_files(
             user=user,
             temp_id_map=parsed_temp_id_map,
             db_session=db_session,
+            background_tasks=bg_tasks if DISABLE_VECTOR_DB else None,
         )
 
         return CategorizedFilesSnapshot.from_result(categorized_files_result)
 
     except Exception as e:
-        # Log error with type, message, and stack for easier debugging
         logger.exception(f"Error uploading files - {type(e).__name__}: {str(e)}")
         raise HTTPException(
             status_code=500,
@@ -192,6 +207,7 @@ def get_files_in_project(
 def unlink_user_file_from_project(
     project_id: int,
     file_id: UUID,
+    bg_tasks: BackgroundTasks,
     user: User = Depends(current_user),
     db_session: Session = Depends(get_session),
 ) -> Response:
@@ -208,7 +224,6 @@ def unlink_user_file_from_project(
     if project is None:
         raise HTTPException(status_code=404, detail="Project not found")
 
-    user_id = user.id
     user_file = (
         db_session.query(UserFile)
         .filter(UserFile.id == file_id, UserFile.user_id == user_id)
@@ -224,7 +239,7 @@ def unlink_user_file_from_project(
         db_session.commit()
 
     tenant_id = get_current_tenant_id()
-    _trigger_user_file_project_sync(user_file.id, tenant_id)
+    _trigger_user_file_project_sync(user_file.id, tenant_id, bg_tasks)
 
     return Response(status_code=204)
 
@@ -237,6 +252,7 @@ def unlink_user_file_from_project(
 def link_user_file_to_project(
     project_id: int,
     file_id: UUID,
+    bg_tasks: BackgroundTasks,
     user: User = Depends(current_user),
     db_session: Session = Depends(get_session),
 ) -> UserFileSnapshot:
@@ -268,7 +284,7 @@ def link_user_file_to_project(
         db_session.commit()
 
     tenant_id = get_current_tenant_id()
-    _trigger_user_file_project_sync(user_file.id, tenant_id)
+    _trigger_user_file_project_sync(user_file.id, tenant_id, bg_tasks)
 
     return UserFileSnapshot.from_model(user_file)
 
@@ -335,7 +351,7 @@ def upsert_project_instructions(
 class ProjectPayload(BaseModel):
     project: UserProjectSnapshot
     files: list[UserFileSnapshot] | None = None
-    persona_id_to_is_default: dict[int, bool] | None = None
+    persona_id_to_featured: dict[int, bool] | None = None
 
 
 @router.get(
@@ -354,13 +370,11 @@ def get_project_details(
         if session.persona_id is not None
     ]
     personas = get_personas_by_ids(persona_ids, db_session)
-    persona_id_to_is_default = {
-        persona.id: persona.is_default_persona for persona in personas
-    }
+    persona_id_to_featured = {persona.id: persona.featured for persona in personas}
     return ProjectPayload(
         project=project,
         files=files,
-        persona_id_to_is_default=persona_id_to_is_default,
+        persona_id_to_featured=persona_id_to_featured,
     )
 
 
@@ -426,6 +440,7 @@ def delete_project(
 @router.delete("/file/{file_id}", tags=PUBLIC_API_TAGS)
 def delete_user_file(
     file_id: UUID,
+    bg_tasks: BackgroundTasks,
     user: User = Depends(current_user),
     db_session: Session = Depends(get_session),
 ) -> UserFileDeleteResult:
@@ -458,15 +473,25 @@ def delete_user_file(
     db_session.commit()
 
     tenant_id = get_current_tenant_id()
-    task = client_app.send_task(
-        OnyxCeleryTask.DELETE_SINGLE_USER_FILE,
-        kwargs={"user_file_id": str(user_file.id), "tenant_id": tenant_id},
-        queue=OnyxCeleryQueues.USER_FILE_DELETE,
-        priority=OnyxCeleryPriority.HIGH,
-    )
-    logger.info(
-        f"Triggered delete for user_file_id={user_file.id} with task_id={task.id}"
-    )
+    if DISABLE_VECTOR_DB:
+        from onyx.background.task_utils import drain_delete_loop
+
+        bg_tasks.add_task(drain_delete_loop, tenant_id)
+        logger.info(f"Queued in-process delete for user_file_id={user_file.id}")
+    else:
+        from onyx.background.celery.versioned_apps.client import app as client_app
+
+        task = client_app.send_task(
+            OnyxCeleryTask.DELETE_SINGLE_USER_FILE,
+            kwargs={"user_file_id": str(user_file.id), "tenant_id": tenant_id},
+            queue=OnyxCeleryQueues.USER_FILE_DELETE,
+            priority=OnyxCeleryPriority.HIGH,
+        )
+        logger.info(
+            f"Triggered delete for user_file_id={user_file.id} "
+            f"with task_id={task.id}"
+        )
+
     return UserFileDeleteResult(
         has_associations=False, project_names=[], assistant_names=[]
     )

backend/onyx/server/features/release_notes/utils.py

@@ -8,10 +8,10 @@ import httpx
 from sqlalchemy.orm import Session
 
 from onyx import __version__
+from onyx.cache.factory import get_shared_cache_backend
 from onyx.configs.app_configs import INSTANCE_TYPE
 from onyx.configs.constants import OnyxRedisLocks
 from onyx.db.release_notes import create_release_notifications_for_versions
-from onyx.redis.redis_pool import get_shared_redis_client
 from onyx.server.features.release_notes.constants import AUTO_REFRESH_THRESHOLD_SECONDS
 from onyx.server.features.release_notes.constants import FETCH_TIMEOUT
 from onyx.server.features.release_notes.constants import GITHUB_CHANGELOG_RAW_URL
@@ -113,60 +113,46 @@ def parse_mdx_to_release_note_entries(mdx_content: str) -> list[ReleaseNoteEntry
 
 
 def get_cached_etag() -> str | None:
-    """Get the cached GitHub ETag from Redis."""
-    redis_client = get_shared_redis_client()
+    cache = get_shared_cache_backend()
     try:
-        etag = redis_client.get(REDIS_KEY_ETAG)
+        etag = cache.get(REDIS_KEY_ETAG)
         if etag:
-            return etag.decode("utf-8") if isinstance(etag, bytes) else str(etag)
+            return etag.decode("utf-8")
         return None
     except Exception as e:
-        logger.error(f"Failed to get cached etag from Redis: {e}")
+        logger.error(f"Failed to get cached etag: {e}")
         return None
 
 
 def get_last_fetch_time() -> datetime | None:
-    """Get the last fetch timestamp from Redis."""
-    redis_client = get_shared_redis_client()
+    cache = get_shared_cache_backend()
     try:
-        fetched_at_str = redis_client.get(REDIS_KEY_FETCHED_AT)
-        if not fetched_at_str:
+        raw = cache.get(REDIS_KEY_FETCHED_AT)
+        if not raw:
             return None
 
-        decoded = (
-            fetched_at_str.decode("utf-8")
-            if isinstance(fetched_at_str, bytes)
-            else str(fetched_at_str)
-        )
-
-        last_fetch = datetime.fromisoformat(decoded)
-
-        # Defensively ensure timezone awareness
-        # fromisoformat() returns naive datetime if input lacks timezone
+        last_fetch = datetime.fromisoformat(raw.decode("utf-8"))
         if last_fetch.tzinfo is None:
-            # Assume UTC for naive datetimes
             last_fetch = last_fetch.replace(tzinfo=timezone.utc)
         else:
-            # Convert to UTC if timezone-aware
             last_fetch = last_fetch.astimezone(timezone.utc)
 
         return last_fetch
     except Exception as e:
-        logger.error(f"Failed to get last fetch time from Redis: {e}")
+        logger.error(f"Failed to get last fetch time from cache: {e}")
         return None
 
 
 def save_fetch_metadata(etag: str | None) -> None:
-    """Save ETag and fetch timestamp to Redis."""
-    redis_client = get_shared_redis_client()
+    cache = get_shared_cache_backend()
     now = datetime.now(timezone.utc)
 
     try:
-        redis_client.set(REDIS_KEY_FETCHED_AT, now.isoformat(), ex=REDIS_CACHE_TTL)
+        cache.set(REDIS_KEY_FETCHED_AT, now.isoformat(), ex=REDIS_CACHE_TTL)
         if etag:
-            redis_client.set(REDIS_KEY_ETAG, etag, ex=REDIS_CACHE_TTL)
+            cache.set(REDIS_KEY_ETAG, etag, ex=REDIS_CACHE_TTL)
     except Exception as e:
-        logger.error(f"Failed to save fetch metadata to Redis: {e}")
+        logger.error(f"Failed to save fetch metadata to cache: {e}")
 
 
 def is_cache_stale() -> bool:
@@ -196,11 +182,10 @@ def ensure_release_notes_fresh_and_notify(db_session: Session) -> None:
     if not is_cache_stale():
         return
 
-    # Acquire lock to prevent concurrent fetches
-    redis_client = get_shared_redis_client()
-    lock = redis_client.lock(
+    cache = get_shared_cache_backend()
+    lock = cache.lock(
         OnyxRedisLocks.RELEASE_NOTES_FETCH_LOCK,
-        timeout=90,  # 90 second timeout for the lock
+        timeout=90,
     )
 
     # Non-blocking acquire - if we can't get the lock, another request is handling it

backend/onyx/server/kg/api.py

@@ -5,7 +5,6 @@ from sqlalchemy.orm import Session
 from onyx.auth.users import current_admin_user
 from onyx.configs.constants import TMP_DRALPHA_PERSONA_NAME
 from onyx.configs.kg_configs import KG_BETA_ASSISTANT_DESCRIPTION
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.engine.sql_engine import get_session
 from onyx.db.entities import get_entity_stats_by_grounded_source_name
 from onyx.db.entity_type import get_configured_entity_types
@@ -134,11 +133,7 @@ def enable_or_disable_kg(
         system_prompt=KG_BETA_ASSISTANT_SYSTEM_PROMPT,
         task_prompt=KG_BETA_ASSISTANT_TASK_PROMPT,
         datetime_aware=False,
-        num_chunks=25,
-        llm_relevance_filter=False,
         is_public=False,
-        llm_filter_extraction=False,
-        recency_bias=RecencyBiasSetting.NO_DECAY,
         document_set_ids=[],
         tool_ids=[search_tool.id, kg_tool.id],
         llm_model_provider_override=None,
@@ -147,7 +142,7 @@ def enable_or_disable_kg(
         users=[user.id],
         groups=[],
         label_ids=[],
-        is_default_persona=False,
+        featured=False,
         display_priority=0,
         user_file_ids=[],
     )

backend/onyx/server/manage/llm/api.py

@@ -479,10 +479,20 @@ def put_llm_provider(
 @admin_router.delete("/provider/{provider_id}")
 def delete_llm_provider(
     provider_id: int,
+    force: bool = Query(False),
     _: User = Depends(current_admin_user),
     db_session: Session = Depends(get_session),
 ) -> None:
     try:
+        if not force:
+            model = fetch_default_llm_model(db_session)
+
+            if model and model.llm_provider_id == provider_id:
+                raise HTTPException(
+                    status_code=400,
+                    detail="Cannot delete the default LLM provider",
+                )
+
         remove_llm_provider(db_session, provider_id)
     except ValueError as e:
         raise HTTPException(status_code=404, detail=str(e))
@@ -603,9 +613,9 @@ def list_llm_provider_basics(
     for provider in all_providers:
         # Use centralized access control logic with persona=None since we're
         # listing providers without a specific persona context. This correctly:
-        # - Includes all public providers
+        # - Includes public providers WITHOUT persona restrictions
         # - Includes providers user can access via group membership
-        # - Excludes persona-only restricted providers (requires specific persona)
+        # - Excludes providers with persona restrictions (requires specific persona)
         # - Excludes non-public providers with no restrictions (admin-only)
         if can_user_access_llm_provider(
             provider, user_group_ids, persona=None, is_admin=is_admin
@@ -638,7 +648,7 @@ def get_valid_model_names_for_persona(
 
     Returns a list of model names (e.g., ["gpt-4o", "claude-3-5-sonnet"]) that are
     available to the user when using this persona, respecting all RBAC restrictions.
-    Public providers are always included.
+    Public providers are included unless they have persona restrictions that exclude this persona.
     """
     persona = fetch_persona_with_groups(db_session, persona_id)
     if not persona:
@@ -652,7 +662,7 @@ def get_valid_model_names_for_persona(
 
     valid_models = []
     for llm_provider_model in all_providers:
-        # Public providers always included, restricted checked via RBAC
+        # Check access with persona context — respects all RBAC restrictions
         if can_user_access_llm_provider(
             llm_provider_model, user_group_ids, persona, is_admin=is_admin
         ):
@@ -673,7 +683,7 @@ def list_llm_providers_for_persona(
     """Get LLM providers for a specific persona.
 
     Returns providers that the user can access when using this persona:
-    - All public providers (is_public=True) - ALWAYS included
+    - Public providers (respecting persona restrictions if set)
     - Restricted providers user can access via group/persona restrictions
 
     This endpoint is used for background fetching of restricted providers
@@ -702,7 +712,7 @@ def list_llm_providers_for_persona(
     llm_provider_list: list[LLMProviderDescriptor] = []
 
     for llm_provider_model in all_providers:
-        # Use simplified access check - public providers always included
+        # Check access with persona context — respects persona restrictions
         if can_user_access_llm_provider(
             llm_provider_model, user_group_ids, persona, is_admin=is_admin
         ):

backend/onyx/server/manage/llm/models.py

@@ -168,18 +168,6 @@ class ModelConfigurationUpsertRequest(BaseModel):
     supports_image_input: bool | None = None
     display_name: str | None = None  # For dynamic providers, from source API
 
-    @classmethod
-    def from_model(
-        cls, model_configuration_model: "ModelConfigurationModel"
-    ) -> "ModelConfigurationUpsertRequest":
-        return cls(
-            name=model_configuration_model.name,
-            is_visible=model_configuration_model.is_visible,
-            max_input_tokens=model_configuration_model.max_input_tokens,
-            supports_image_input=model_configuration_model.supports_image_input,
-            display_name=model_configuration_model.display_name,
-        )
-
 
 class ModelConfigurationView(BaseModel):
     name: str

backend/onyx/server/manage/slack_bot.py

@@ -198,7 +198,6 @@ def patch_slack_channel_config(
             channel_name=channel_config["channel_name"],
             document_set_ids=slack_channel_config_creation_request.document_sets,
             existing_persona_id=existing_persona_id,
-            enable_auto_filters=slack_channel_config_creation_request.enable_auto_filters,
         ).id
 
     slack_channel_config_model = update_slack_channel_config(

backend/onyx/server/query_and_chat/chat_backend.py

@@ -13,13 +13,13 @@ from fastapi import Request
 from fastapi import Response
 from fastapi.responses import StreamingResponse
 from pydantic import BaseModel
-from redis.client import Redis
 from sqlalchemy.orm import Session
 
 from onyx.auth.api_key import get_hashed_api_key_from_request
 from onyx.auth.pat import get_hashed_pat_from_request
 from onyx.auth.users import current_chat_accessible_user
 from onyx.auth.users import current_user
+from onyx.cache.factory import get_cache_backend
 from onyx.chat.chat_processing_checker import is_chat_session_processing
 from onyx.chat.chat_state import ChatStateContainer
 from onyx.chat.chat_utils import convert_chat_history_basic
@@ -67,7 +67,6 @@ from onyx.llm.constants import LlmProviderNames
 from onyx.llm.factory import get_default_llm
 from onyx.llm.factory import get_llm_for_persona
 from onyx.llm.factory import get_llm_token_counter
-from onyx.redis.redis_pool import get_redis_client
 from onyx.secondary_llm_flows.chat_session_naming import generate_chat_session_name
 from onyx.server.api_key_usage import check_api_key_usage
 from onyx.server.query_and_chat.models import ChatFeedbackRequest
@@ -152,10 +151,20 @@ def get_user_chat_sessions(
     project_id: int | None = None,
     only_non_project_chats: bool = True,
     include_failed_chats: bool = False,
+    page_size: int = Query(default=50, ge=1, le=100),
+    before: str | None = Query(default=None),
 ) -> ChatSessionsResponse:
     user_id = user.id
 
     try:
+        before_dt = (
+            datetime.datetime.fromisoformat(before) if before is not None else None
+        )
+    except ValueError:
+        raise HTTPException(status_code=422, detail="Invalid 'before' timestamp format")
+
+    try:
+        # Fetch one extra to determine if there are more results
         chat_sessions = get_chat_sessions_by_user(
             user_id=user_id,
             deleted=False,
@@ -163,11 +172,16 @@ def get_user_chat_sessions(
             project_id=project_id,
             only_non_project_chats=only_non_project_chats,
             include_failed_chats=include_failed_chats,
+            limit=page_size + 1,
+            before=before_dt,
         )
 
     except ValueError:
         raise ValueError("Chat session does not exist or has been deleted")
 
+    has_more = len(chat_sessions) > page_size
+    chat_sessions = chat_sessions[:page_size]
+
     return ChatSessionsResponse(
         sessions=[
             ChatSessionDetails(
@@ -181,7 +195,8 @@ def get_user_chat_sessions(
                 current_temperature_override=chat.temperature_override,
             )
             for chat in chat_sessions
-        ]
+        ],
+        has_more=has_more,
     )
 
 
@@ -314,7 +329,7 @@ def get_chat_session(
     ]
 
     try:
-        is_processing = is_chat_session_processing(session_id, get_redis_client())
+        is_processing = is_chat_session_processing(session_id, get_cache_backend())
         # Edit the last message to indicate loading (Overriding default message value)
         if is_processing and chat_message_details:
             last_msg = chat_message_details[-1]
@@ -911,11 +926,10 @@ async def search_chats(
 def stop_chat_session(
     chat_session_id: UUID,
     user: User = Depends(current_user),  # noqa: ARG001
-    redis_client: Redis = Depends(get_redis_client),
 ) -> dict[str, str]:
     """
-    Stop a chat session by setting a stop signal in Redis.
+    Stop a chat session by setting a stop signal.
     This endpoint is called by the frontend when the user clicks the stop button.
     """
-    set_fence(chat_session_id, redis_client, True)
+    set_fence(chat_session_id, get_cache_backend(), True)
     return {"message": "Chat session stopped"}

backend/onyx/server/query_and_chat/models.py

@@ -192,6 +192,7 @@ class ChatSessionDetails(BaseModel):
 
 class ChatSessionsResponse(BaseModel):
     sessions: list[ChatSessionDetails]
+    has_more: bool = False
 
 
 class ChatMessageDetail(BaseModel):

backend/onyx/server/settings/store.py

@@ -1,3 +1,4 @@
+from onyx.cache.factory import get_cache_backend
 from onyx.configs.app_configs import DISABLE_USER_KNOWLEDGE
 from onyx.configs.app_configs import ENABLE_OPENSEARCH_INDEXING_FOR_ONYX
 from onyx.configs.app_configs import ONYX_QUERY_HISTORY_TYPE
@@ -6,11 +7,8 @@ from onyx.configs.constants import KV_SETTINGS_KEY
 from onyx.configs.constants import OnyxRedisLocks
 from onyx.key_value_store.factory import get_kv_store
 from onyx.key_value_store.interface import KvKeyNotFoundError
-from onyx.redis.redis_pool import get_redis_client
 from onyx.server.settings.models import Settings
 from onyx.utils.logger import setup_logger
-from shared_configs.configs import MULTI_TENANT
-from shared_configs.contextvars import get_current_tenant_id
 
 logger = setup_logger()
 
@@ -33,30 +31,22 @@ def load_settings() -> Settings:
         logger.error(f"Error loading settings from KV store: {str(e)}")
         settings = Settings()
 
-    tenant_id = get_current_tenant_id() if MULTI_TENANT else None
-    redis_client = get_redis_client(tenant_id=tenant_id)
+    cache = get_cache_backend()
 
     try:
-        value = redis_client.get(OnyxRedisLocks.ANONYMOUS_USER_ENABLED)
+        value = cache.get(OnyxRedisLocks.ANONYMOUS_USER_ENABLED)
         if value is not None:
-            assert isinstance(value, bytes)
             anonymous_user_enabled = int(value.decode("utf-8")) == 1
         else:
-            # Default to False
             anonymous_user_enabled = False
-            # Optionally store the default back to Redis
-            redis_client.set(
-                OnyxRedisLocks.ANONYMOUS_USER_ENABLED, "0", ex=SETTINGS_TTL
-            )
+            cache.set(OnyxRedisLocks.ANONYMOUS_USER_ENABLED, "0", ex=SETTINGS_TTL)
     except Exception as e:
-        # Log the error and reset to default
-        logger.error(f"Error loading anonymous user setting from Redis: {str(e)}")
+        logger.error(f"Error loading anonymous user setting from cache: {str(e)}")
         anonymous_user_enabled = False
 
     settings.anonymous_user_enabled = anonymous_user_enabled
     settings.query_history_type = ONYX_QUERY_HISTORY_TYPE
 
-    # Override user knowledge setting if disabled via environment variable
     if DISABLE_USER_KNOWLEDGE:
         settings.user_knowledge_enabled = False
 
@@ -66,11 +56,10 @@ def load_settings() -> Settings:
 
 
 def store_settings(settings: Settings) -> None:
-    tenant_id = get_current_tenant_id() if MULTI_TENANT else None
-    redis_client = get_redis_client(tenant_id=tenant_id)
+    cache = get_cache_backend()
 
     if settings.anonymous_user_enabled is not None:
-        redis_client.set(
+        cache.set(
             OnyxRedisLocks.ANONYMOUS_USER_ENABLED,
             "1" if settings.anonymous_user_enabled else "0",
             ex=SETTINGS_TTL,

backend/pyproject.toml

@@ -8,37 +8,3 @@ dependencies = [
 
 [tool.uv.sources]
 onyx = { workspace = true }
-
-[tool.mypy]
-plugins = "sqlalchemy.ext.mypy.plugin"
-mypy_path = "backend"
-explicit_package_bases = true
-disallow_untyped_defs = true
-warn_unused_ignores = true
-enable_error_code = ["possibly-undefined"]
-strict_equality = true
-# Patterns match paths whether mypy is run from backend/ (CI) or repo root (e.g. VS Code extension with target ./backend)
-exclude = [
-  "(?:^|/)generated/",
-  "(?:^|/)\\.venv/",
-  "(?:^|/)onyx/server/features/build/sandbox/kubernetes/docker/skills/",
-  "(?:^|/)onyx/server/features/build/sandbox/kubernetes/docker/templates/",
-]
-
-[[tool.mypy.overrides]]
-module = "alembic.versions.*"
-disable_error_code = ["var-annotated"]
-
-[[tool.mypy.overrides]]
-module = "alembic_tenants.versions.*"
-disable_error_code = ["var-annotated"]
-
-[[tool.mypy.overrides]]
-module = "generated.*"
-follow_imports = "silent"
-ignore_errors = true
-
-[[tool.mypy.overrides]]
-module = "transformers.*"
-follow_imports = "skip"
-ignore_errors = true

backend/requirements/default.txt

@@ -528,7 +528,7 @@ lxml==5.3.0
     #   unstructured
     #   xmlsec
     #   zeep
-lxml-html-clean==0.4.3
+lxml-html-clean==0.4.4
     # via lxml
 magika==0.6.3
     # via markitdown
@@ -809,7 +809,7 @@ pypandoc-binary==1.16.2
     # via onyx
 pyparsing==3.2.5
     # via httplib2
-pypdf==6.7.3
+pypdf==6.7.5
     # via
     #   onyx
     #   unstructured-client

backend/tests/external_dependency_unit/answer/test_stream_chat_message_objects.py

@@ -9,7 +9,6 @@ from onyx.chat.models import AnswerStreamPart
 from onyx.chat.models import StreamingError
 from onyx.chat.process_message import handle_stream_message_objects
 from onyx.db.chat import create_chat_session
-from onyx.db.models import RecencyBiasSetting
 from onyx.db.models import User
 from onyx.db.persona import upsert_persona
 from onyx.server.query_and_chat.models import MessageResponseIDInfo
@@ -74,10 +73,6 @@ def test_stream_chat_message_objects_without_web_search(
         user=None,  # System persona
         name=f"Test Persona {uuid.uuid4()}",
         description="Test persona with no tools for web search test",
-        num_chunks=10.0,
-        llm_relevance_filter=True,
-        llm_filter_extraction=True,
-        recency_bias=RecencyBiasSetting.BASE_DECAY,
         llm_model_provider_override=None,
         llm_model_version_override=None,
         starter_messages=None,

backend/tests/external_dependency_unit/background/test_periodic_task_claim.py

@@ -0,0 +1,257 @@
+"""External dependency unit tests for periodic task claiming.
+
+Tests ``_try_claim_task`` and ``_try_run_periodic_task`` against real
+PostgreSQL, verifying happy-path behavior and concurrent-access safety.
+
+The claim mechanism uses a transaction-scoped advisory lock + a KVStore
+timestamp for cross-instance dedup.  The DB session is released before
+the task runs, so long-running tasks don't hold connections.
+"""
+
+import time
+from collections.abc import Generator
+from concurrent.futures import as_completed
+from concurrent.futures import ThreadPoolExecutor
+from datetime import datetime
+from datetime import timedelta
+from datetime import timezone
+from unittest.mock import MagicMock
+from uuid import uuid4
+
+import pytest
+
+from onyx.background.periodic_poller import _PeriodicTaskDef
+from onyx.background.periodic_poller import _try_claim_task
+from onyx.background.periodic_poller import _try_run_periodic_task
+from onyx.background.periodic_poller import PERIODIC_TASK_KV_PREFIX
+from onyx.db.engine.sql_engine import get_session_with_current_tenant
+from onyx.db.engine.sql_engine import SqlEngine
+from onyx.db.models import KVStore
+from shared_configs.contextvars import CURRENT_TENANT_ID_CONTEXTVAR
+from tests.external_dependency_unit.constants import TEST_TENANT_ID
+
+_TEST_LOCK_BASE = 90_000
+
+
+@pytest.fixture(scope="module", autouse=True)
+def _init_engine() -> None:
+    SqlEngine.init_engine(pool_size=10, max_overflow=5)
+
+
+def _make_task(
+    *,
+    name: str | None = None,
+    interval: float = 3600,
+    lock_id: int | None = None,
+    run_fn: MagicMock | None = None,
+) -> _PeriodicTaskDef:
+    return _PeriodicTaskDef(
+        name=name if name is not None else f"test-{uuid4().hex[:8]}",
+        interval_seconds=interval,
+        lock_id=lock_id if lock_id is not None else _TEST_LOCK_BASE,
+        run_fn=run_fn if run_fn is not None else MagicMock(),
+    )
+
+
+@pytest.fixture(autouse=True)
+def _cleanup_kv(
+    tenant_context: None,  # noqa: ARG001
+) -> Generator[None, None, None]:
+    yield
+    with get_session_with_current_tenant() as db_session:
+        db_session.query(KVStore).filter(
+            KVStore.key.like(f"{PERIODIC_TASK_KV_PREFIX}test-%")
+        ).delete(synchronize_session=False)
+        db_session.commit()
+
+
+# ------------------------------------------------------------------
+# Happy-path: _try_claim_task
+# ------------------------------------------------------------------
+
+
+class TestClaimHappyPath:
+    def test_first_claim_succeeds(self) -> None:
+        assert _try_claim_task(_make_task()) is True
+
+    def test_first_claim_creates_kv_row(self) -> None:
+        task = _make_task()
+        _try_claim_task(task)
+
+        with get_session_with_current_tenant() as db_session:
+            row = (
+                db_session.query(KVStore)
+                .filter_by(key=PERIODIC_TASK_KV_PREFIX + task.name)
+                .first()
+            )
+        assert row is not None
+        assert row.value is not None
+
+    def test_second_claim_within_interval_fails(self) -> None:
+        task = _make_task(interval=3600)
+        assert _try_claim_task(task) is True
+        assert _try_claim_task(task) is False
+
+    def test_claim_after_interval_succeeds(self) -> None:
+        task = _make_task(interval=1)
+        assert _try_claim_task(task) is True
+
+        kv_key = PERIODIC_TASK_KV_PREFIX + task.name
+        with get_session_with_current_tenant() as db_session:
+            row = db_session.query(KVStore).filter_by(key=kv_key).first()
+            assert row is not None
+            row.value = (datetime.now(timezone.utc) - timedelta(seconds=10)).isoformat()
+            db_session.commit()
+
+        assert _try_claim_task(task) is True
+
+
+# ------------------------------------------------------------------
+# Happy-path: _try_run_periodic_task
+# ------------------------------------------------------------------
+
+
+class TestRunHappyPath:
+    def test_runs_task_and_updates_last_run_at(self) -> None:
+        mock_fn = MagicMock()
+        task = _make_task(run_fn=mock_fn)
+
+        _try_run_periodic_task(task)
+
+        mock_fn.assert_called_once()
+        assert task.last_run_at > 0
+
+    def test_skips_when_in_memory_interval_not_elapsed(self) -> None:
+        mock_fn = MagicMock()
+        task = _make_task(run_fn=mock_fn, interval=3600)
+        task.last_run_at = time.monotonic()
+
+        _try_run_periodic_task(task)
+
+        mock_fn.assert_not_called()
+
+    def test_skips_when_db_claim_blocked(self) -> None:
+        name = f"test-{uuid4().hex[:8]}"
+        lock_id = _TEST_LOCK_BASE + 10
+
+        _try_claim_task(_make_task(name=name, lock_id=lock_id, interval=3600))
+
+        mock_fn = MagicMock()
+        task = _make_task(name=name, lock_id=lock_id, interval=3600, run_fn=mock_fn)
+        _try_run_periodic_task(task)
+
+        mock_fn.assert_not_called()
+
+    def test_task_exception_does_not_propagate(self) -> None:
+        task = _make_task(run_fn=MagicMock(side_effect=RuntimeError("boom")))
+        _try_run_periodic_task(task)
+
+    def test_claim_committed_before_task_runs(self) -> None:
+        """The KV claim must be visible in the DB when run_fn executes."""
+        task_name = f"test-order-{uuid4().hex[:8]}"
+        kv_key = PERIODIC_TASK_KV_PREFIX + task_name
+        claim_visible: list[bool] = []
+
+        def check_claim() -> None:
+            with get_session_with_current_tenant() as db_session:
+                row = db_session.query(KVStore).filter_by(key=kv_key).first()
+                claim_visible.append(row is not None and row.value is not None)
+
+        task = _PeriodicTaskDef(
+            name=task_name,
+            interval_seconds=3600,
+            lock_id=_TEST_LOCK_BASE + 11,
+            run_fn=check_claim,
+        )
+
+        _try_run_periodic_task(task)
+
+        assert claim_visible == [True]
+
+
+# ------------------------------------------------------------------
+# Concurrency: only one claimer should win
+# ------------------------------------------------------------------
+
+
+class TestClaimConcurrency:
+    def test_concurrent_claims_single_winner(self) -> None:
+        """Many threads claim the same task — exactly one should succeed."""
+        num_threads = 20
+        task_name = f"test-race-{uuid4().hex[:8]}"
+        lock_id = _TEST_LOCK_BASE + 20
+
+        def claim() -> bool:
+            CURRENT_TENANT_ID_CONTEXTVAR.set(TEST_TENANT_ID)
+            return _try_claim_task(
+                _PeriodicTaskDef(
+                    name=task_name,
+                    interval_seconds=3600,
+                    lock_id=lock_id,
+                    run_fn=lambda: None,
+                )
+            )
+
+        results: list[bool] = []
+        with ThreadPoolExecutor(max_workers=num_threads) as executor:
+            futures = [executor.submit(claim) for _ in range(num_threads)]
+            for future in as_completed(futures):
+                results.append(future.result())
+
+        winners = sum(1 for r in results if r)
+        assert winners == 1, f"Expected 1 winner, got {winners}"
+
+    def test_concurrent_run_single_execution(self) -> None:
+        """Many threads run the same task — run_fn fires exactly once."""
+        num_threads = 20
+        task_name = f"test-run-race-{uuid4().hex[:8]}"
+        lock_id = _TEST_LOCK_BASE + 21
+        counter = MagicMock()
+
+        def run() -> None:
+            CURRENT_TENANT_ID_CONTEXTVAR.set(TEST_TENANT_ID)
+            _try_run_periodic_task(
+                _PeriodicTaskDef(
+                    name=task_name,
+                    interval_seconds=3600,
+                    lock_id=lock_id,
+                    run_fn=counter,
+                )
+            )
+
+        with ThreadPoolExecutor(max_workers=num_threads) as executor:
+            futures = [executor.submit(run) for _ in range(num_threads)]
+            for future in as_completed(futures):
+                future.result()
+
+        assert (
+            counter.call_count == 1
+        ), f"Expected run_fn called once, got {counter.call_count}"
+
+    def test_no_errors_under_contention(self) -> None:
+        """All threads complete without exceptions under high contention."""
+        num_threads = 30
+        task_name = f"test-err-{uuid4().hex[:8]}"
+        lock_id = _TEST_LOCK_BASE + 22
+        errors: list[Exception] = []
+
+        def claim() -> bool:
+            CURRENT_TENANT_ID_CONTEXTVAR.set(TEST_TENANT_ID)
+            return _try_claim_task(
+                _PeriodicTaskDef(
+                    name=task_name,
+                    interval_seconds=3600,
+                    lock_id=lock_id,
+                    run_fn=lambda: None,
+                )
+            )
+
+        with ThreadPoolExecutor(max_workers=num_threads) as executor:
+            futures = [executor.submit(claim) for _ in range(num_threads)]
+            for future in as_completed(futures):
+                try:
+                    future.result()
+                except Exception as e:
+                    errors.append(e)
+
+        assert errors == [], f"Got {len(errors)} errors: {errors}"

backend/tests/external_dependency_unit/background/test_startup_recovery.py

@@ -0,0 +1,352 @@
+"""External dependency unit tests for startup recovery (Step 10g).
+
+Seeds ``UserFile`` records in stuck states (PROCESSING, DELETING,
+needs_project_sync) then calls ``recover_stuck_user_files`` and verifies
+the drain loops pick them up via ``FOR UPDATE SKIP LOCKED``.
+
+Uses real PostgreSQL (via ``db_session`` / ``tenant_context`` fixtures).
+The per-file ``*_impl`` functions are mocked so no real file store or
+connector is needed — we only verify that recovery finds and dispatches
+the correct files.
+"""
+
+from collections.abc import Generator
+from unittest.mock import MagicMock
+from unittest.mock import patch
+from uuid import UUID
+from uuid import uuid4
+
+import pytest
+import sqlalchemy as sa
+from sqlalchemy.orm import Session
+
+from onyx.background.periodic_poller import recover_stuck_user_files
+from onyx.db.enums import UserFileStatus
+from onyx.db.models import UserFile
+from tests.external_dependency_unit.conftest import create_test_user
+from tests.external_dependency_unit.constants import TEST_TENANT_ID
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+_IMPL_MODULE = "onyx.background.celery.tasks.user_file_processing.tasks"
+
+
+def _create_user_file(
+    db_session: Session,
+    user_id: object,
+    *,
+    status: UserFileStatus = UserFileStatus.PROCESSING,
+    needs_project_sync: bool = False,
+    needs_persona_sync: bool = False,
+) -> UserFile:
+    uf = UserFile(
+        id=uuid4(),
+        user_id=user_id,
+        file_id=f"test_file_{uuid4().hex[:8]}",
+        name=f"test_{uuid4().hex[:8]}.txt",
+        file_type="text/plain",
+        status=status,
+        needs_project_sync=needs_project_sync,
+        needs_persona_sync=needs_persona_sync,
+    )
+    db_session.add(uf)
+    db_session.commit()
+    db_session.refresh(uf)
+    return uf
+
+
+def _fake_delete_impl(
+    user_file_id: str, tenant_id: str, redis_locking: bool  # noqa: ARG001
+) -> None:
+    """Mock side-effect: delete the row so the drain loop terminates."""
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+    with get_session_with_current_tenant() as session:
+        session.execute(sa.delete(UserFile).where(UserFile.id == UUID(user_file_id)))
+        session.commit()
+
+
+def _fake_sync_impl(
+    user_file_id: str, tenant_id: str, redis_locking: bool  # noqa: ARG001
+) -> None:
+    """Mock side-effect: clear sync flags so the drain loop terminates."""
+    from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+    with get_session_with_current_tenant() as session:
+        session.execute(
+            sa.update(UserFile)
+            .where(UserFile.id == UUID(user_file_id))
+            .values(needs_project_sync=False, needs_persona_sync=False)
+        )
+        session.commit()
+
+
+@pytest.fixture()
+def _cleanup_user_files(db_session: Session) -> Generator[list[UserFile], None, None]:
+    """Track created UserFile rows and delete them after each test."""
+    created: list[UserFile] = []
+    yield created
+    for uf in created:
+        existing = db_session.get(UserFile, uf.id)
+        if existing:
+            db_session.delete(existing)
+    db_session.commit()
+
+
+# ---------------------------------------------------------------------------
+# Tests
+# ---------------------------------------------------------------------------
+
+
+class TestRecoverProcessingFiles:
+    """Files in PROCESSING status are re-processed via the processing drain loop."""
+
+    def test_processing_files_recovered(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "recovery_proc")
+        uf = _create_user_file(db_session, user.id, status=UserFileStatus.PROCESSING)
+        _cleanup_user_files.append(uf)
+
+        mock_impl = MagicMock()
+        with patch(f"{_IMPL_MODULE}.process_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert (
+            str(uf.id) in called_ids
+        ), f"Expected file {uf.id} to be recovered but got: {called_ids}"
+
+    def test_completed_files_not_recovered(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "recovery_comp")
+        uf = _create_user_file(db_session, user.id, status=UserFileStatus.COMPLETED)
+        _cleanup_user_files.append(uf)
+
+        mock_impl = MagicMock()
+        with patch(f"{_IMPL_MODULE}.process_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert (
+            str(uf.id) not in called_ids
+        ), f"COMPLETED file {uf.id} should not have been recovered"
+
+
+class TestRecoverDeletingFiles:
+    """Files in DELETING status are recovered via the delete drain loop."""
+
+    def test_deleting_files_recovered(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "recovery_del")
+        uf = _create_user_file(db_session, user.id, status=UserFileStatus.DELETING)
+        # Row is deleted by _fake_delete_impl, so no cleanup needed.
+
+        mock_impl = MagicMock(side_effect=_fake_delete_impl)
+        with patch(f"{_IMPL_MODULE}.delete_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert (
+            str(uf.id) in called_ids
+        ), f"Expected file {uf.id} to be recovered for deletion but got: {called_ids}"
+
+
+class TestRecoverSyncFiles:
+    """Files needing project/persona sync are recovered via the sync drain loop."""
+
+    def test_needs_project_sync_recovered(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "recovery_sync")
+        uf = _create_user_file(
+            db_session,
+            user.id,
+            status=UserFileStatus.COMPLETED,
+            needs_project_sync=True,
+        )
+        _cleanup_user_files.append(uf)
+
+        mock_impl = MagicMock(side_effect=_fake_sync_impl)
+        with patch(f"{_IMPL_MODULE}.project_sync_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert (
+            str(uf.id) in called_ids
+        ), f"Expected file {uf.id} to be recovered for sync but got: {called_ids}"
+
+    def test_needs_persona_sync_recovered(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "recovery_psync")
+        uf = _create_user_file(
+            db_session,
+            user.id,
+            status=UserFileStatus.COMPLETED,
+            needs_persona_sync=True,
+        )
+        _cleanup_user_files.append(uf)
+
+        mock_impl = MagicMock(side_effect=_fake_sync_impl)
+        with patch(f"{_IMPL_MODULE}.project_sync_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert (
+            str(uf.id) in called_ids
+        ), f"Expected file {uf.id} to be recovered for persona sync but got: {called_ids}"
+
+
+class TestRecoveryMultipleFiles:
+    """Recovery processes all stuck files in one pass, not just the first."""
+
+    def test_multiple_processing_files(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "recovery_multi")
+        files = []
+        for _ in range(3):
+            uf = _create_user_file(
+                db_session, user.id, status=UserFileStatus.PROCESSING
+            )
+            _cleanup_user_files.append(uf)
+            files.append(uf)
+
+        mock_impl = MagicMock()
+        with patch(f"{_IMPL_MODULE}.process_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = {call.kwargs["user_file_id"] for call in mock_impl.call_args_list}
+        expected_ids = {str(uf.id) for uf in files}
+        assert expected_ids.issubset(called_ids), (
+            f"Expected all {len(files)} files to be recovered. "
+            f"Missing: {expected_ids - called_ids}"
+        )
+
+
+class TestTransientFailures:
+    """Drain loops skip failed files, process the rest, and terminate."""
+
+    def test_processing_failure_skips_and_continues(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "fail_proc")
+        uf_fail = _create_user_file(
+            db_session, user.id, status=UserFileStatus.PROCESSING
+        )
+        uf_ok = _create_user_file(db_session, user.id, status=UserFileStatus.PROCESSING)
+        _cleanup_user_files.extend([uf_fail, uf_ok])
+
+        fail_id = str(uf_fail.id)
+
+        def side_effect(
+            *, user_file_id: str, tenant_id: str, redis_locking: bool  # noqa: ARG001
+        ) -> None:
+            if user_file_id == fail_id:
+                raise RuntimeError("transient failure")
+
+        mock_impl = MagicMock(side_effect=side_effect)
+        with patch(f"{_IMPL_MODULE}.process_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert fail_id in called_ids, "Failed file should have been attempted"
+        assert str(uf_ok.id) in called_ids, "Healthy file should have been processed"
+        assert called_ids.count(fail_id) == 1, "Failed file retried — infinite loop"
+        assert called_ids.count(str(uf_ok.id)) == 1
+
+    def test_delete_failure_skips_and_continues(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "fail_del")
+        uf_fail = _create_user_file(db_session, user.id, status=UserFileStatus.DELETING)
+        uf_ok = _create_user_file(db_session, user.id, status=UserFileStatus.DELETING)
+        _cleanup_user_files.append(uf_fail)
+
+        fail_id = str(uf_fail.id)
+
+        def side_effect(
+            *, user_file_id: str, tenant_id: str, redis_locking: bool
+        ) -> None:
+            if user_file_id == fail_id:
+                raise RuntimeError("transient failure")
+            _fake_delete_impl(user_file_id, tenant_id, redis_locking)
+
+        mock_impl = MagicMock(side_effect=side_effect)
+        with patch(f"{_IMPL_MODULE}.delete_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert fail_id in called_ids, "Failed file should have been attempted"
+        assert str(uf_ok.id) in called_ids, "Healthy file should have been deleted"
+        assert called_ids.count(fail_id) == 1, "Failed file retried — infinite loop"
+        assert called_ids.count(str(uf_ok.id)) == 1
+
+    def test_sync_failure_skips_and_continues(
+        self,
+        db_session: Session,
+        tenant_context: None,  # noqa: ARG002
+        _cleanup_user_files: list[UserFile],
+    ) -> None:
+        user = create_test_user(db_session, "fail_sync")
+        uf_fail = _create_user_file(
+            db_session,
+            user.id,
+            status=UserFileStatus.COMPLETED,
+            needs_project_sync=True,
+        )
+        uf_ok = _create_user_file(
+            db_session,
+            user.id,
+            status=UserFileStatus.COMPLETED,
+            needs_persona_sync=True,
+        )
+        _cleanup_user_files.extend([uf_fail, uf_ok])
+
+        fail_id = str(uf_fail.id)
+
+        def side_effect(
+            *, user_file_id: str, tenant_id: str, redis_locking: bool
+        ) -> None:
+            if user_file_id == fail_id:
+                raise RuntimeError("transient failure")
+            _fake_sync_impl(user_file_id, tenant_id, redis_locking)
+
+        mock_impl = MagicMock(side_effect=side_effect)
+        with patch(f"{_IMPL_MODULE}.project_sync_user_file_impl", mock_impl):
+            recover_stuck_user_files(TEST_TENANT_ID)
+
+        called_ids = [call.kwargs["user_file_id"] for call in mock_impl.call_args_list]
+        assert fail_id in called_ids, "Failed file should have been attempted"
+        assert str(uf_ok.id) in called_ids, "Healthy file should have been synced"
+        assert called_ids.count(fail_id) == 1, "Failed file retried — infinite loop"
+        assert called_ids.count(str(uf_ok.id)) == 1

backend/tests/external_dependency_unit/cache/conftest.py

@@ -0,0 +1,57 @@
+"""Fixtures for cache backend tests.
+
+Requires a running PostgreSQL instance (and Redis for parity tests).
+Run with::
+
+    python -m dotenv -f .vscode/.env run -- pytest tests/external_dependency_unit/cache/
+"""
+
+from collections.abc import Generator
+
+import pytest
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.postgres_backend import PostgresCacheBackend
+from onyx.cache.redis_backend import RedisCacheBackend
+from onyx.db.engine.sql_engine import SqlEngine
+from shared_configs.contextvars import CURRENT_TENANT_ID_CONTEXTVAR
+from tests.external_dependency_unit.constants import TEST_TENANT_ID
+
+
+@pytest.fixture(scope="session", autouse=True)
+def _init_db() -> Generator[None, None, None]:
+    """Initialize DB engine. Assumes Postgres has migrations applied (e.g. via docker compose)."""
+    SqlEngine.init_engine(pool_size=5, max_overflow=2)
+    yield
+
+
+@pytest.fixture(autouse=True)
+def _tenant_context() -> Generator[None, None, None]:
+    token = CURRENT_TENANT_ID_CONTEXTVAR.set(TEST_TENANT_ID)
+    try:
+        yield
+    finally:
+        CURRENT_TENANT_ID_CONTEXTVAR.reset(token)
+
+
+@pytest.fixture
+def pg_cache() -> PostgresCacheBackend:
+    return PostgresCacheBackend(TEST_TENANT_ID)
+
+
+@pytest.fixture
+def redis_cache() -> RedisCacheBackend:
+    from onyx.redis.redis_pool import redis_pool
+
+    return RedisCacheBackend(redis_pool.get_client(TEST_TENANT_ID))
+
+
+@pytest.fixture(params=["postgres", "redis"], ids=["postgres", "redis"])
+def cache(
+    request: pytest.FixtureRequest,
+    pg_cache: PostgresCacheBackend,
+    redis_cache: RedisCacheBackend,
+) -> CacheBackend:
+    if request.param == "postgres":
+        return pg_cache
+    return redis_cache

backend/tests/external_dependency_unit/cache/test_cache_backend_parity.py

@@ -0,0 +1,100 @@
+"""Parameterized tests that run the same CacheBackend operations against
+both Redis and PostgreSQL, asserting identical return values.
+
+Each test runs twice (once per backend) via the ``cache`` fixture defined
+in conftest.py.
+"""
+
+import time
+from uuid import uuid4
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.interface import TTL_KEY_NOT_FOUND
+from onyx.cache.interface import TTL_NO_EXPIRY
+
+
+def _key() -> str:
+    return f"parity_{uuid4().hex[:12]}"
+
+
+class TestKVParity:
+    def test_get_missing(self, cache: CacheBackend) -> None:
+        assert cache.get(_key()) is None
+
+    def test_get_set(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, b"value")
+        assert cache.get(k) == b"value"
+
+    def test_overwrite(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, b"a")
+        cache.set(k, b"b")
+        assert cache.get(k) == b"b"
+
+    def test_set_string(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, "hello")
+        assert cache.get(k) == b"hello"
+
+    def test_set_int(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, 42)
+        assert cache.get(k) == b"42"
+
+    def test_delete(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, b"x")
+        cache.delete(k)
+        assert cache.get(k) is None
+
+    def test_exists(self, cache: CacheBackend) -> None:
+        k = _key()
+        assert not cache.exists(k)
+        cache.set(k, b"x")
+        assert cache.exists(k)
+
+
+class TestTTLParity:
+    def test_ttl_missing(self, cache: CacheBackend) -> None:
+        assert cache.ttl(_key()) == TTL_KEY_NOT_FOUND
+
+    def test_ttl_no_expiry(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, b"x")
+        assert cache.ttl(k) == TTL_NO_EXPIRY
+
+    def test_ttl_remaining(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, b"x", ex=10)
+        remaining = cache.ttl(k)
+        assert 8 <= remaining <= 10
+
+    def test_set_with_ttl_expires(self, cache: CacheBackend) -> None:
+        k = _key()
+        cache.set(k, b"x", ex=1)
+        assert cache.get(k) == b"x"
+        time.sleep(1.5)
+        assert cache.get(k) is None
+
+
+class TestLockParity:
+    def test_acquire_release(self, cache: CacheBackend) -> None:
+        lock = cache.lock(f"parity_lock_{uuid4().hex[:8]}")
+        assert lock.acquire(blocking=False)
+        assert lock.owned()
+        lock.release()
+        assert not lock.owned()
+
+
+class TestListParity:
+    def test_rpush_blpop(self, cache: CacheBackend) -> None:
+        k = f"parity_list_{uuid4().hex[:8]}"
+        cache.rpush(k, b"item")
+        result = cache.blpop([k], timeout=1)
+        assert result is not None
+        assert result[1] == b"item"
+
+    def test_blpop_timeout(self, cache: CacheBackend) -> None:
+        result = cache.blpop([f"parity_empty_{uuid4().hex[:8]}"], timeout=1)
+        assert result is None

backend/tests/external_dependency_unit/cache/test_kv_store_cache_layer.py

@@ -0,0 +1,129 @@
+"""Tests for PgRedisKVStore's cache layer integration with CacheBackend.
+
+Verifies that the KV store correctly uses the CacheBackend for caching
+in front of PostgreSQL: cache hits, cache misses falling through to PG,
+cache population after PG reads, cache invalidation on delete, and
+graceful degradation when the cache backend raises.
+
+Requires running PostgreSQL.
+"""
+
+import json
+from collections.abc import Generator
+from unittest.mock import MagicMock
+
+import pytest
+from sqlalchemy import delete
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.postgres_backend import PostgresCacheBackend
+from onyx.db.engine.sql_engine import get_session_with_tenant
+from onyx.db.models import CacheStore
+from onyx.db.models import KVStore
+from onyx.key_value_store.interface import KvKeyNotFoundError
+from onyx.key_value_store.store import PgRedisKVStore
+from onyx.key_value_store.store import REDIS_KEY_PREFIX
+from tests.external_dependency_unit.constants import TEST_TENANT_ID
+
+
+@pytest.fixture(autouse=True)
+def _clean_kv() -> Generator[None, None, None]:
+    yield
+    with get_session_with_tenant(tenant_id=TEST_TENANT_ID) as session:
+        session.execute(delete(KVStore))
+        session.execute(delete(CacheStore))
+        session.commit()
+
+
+@pytest.fixture
+def kv_store(pg_cache: PostgresCacheBackend) -> PgRedisKVStore:
+    return PgRedisKVStore(cache=pg_cache)
+
+
+class TestStoreAndLoad:
+    def test_store_populates_cache_and_pg(
+        self, kv_store: PgRedisKVStore, pg_cache: PostgresCacheBackend
+    ) -> None:
+        kv_store.store("k1", {"hello": "world"})
+
+        cached = pg_cache.get(REDIS_KEY_PREFIX + "k1")
+        assert cached is not None
+        assert json.loads(cached) == {"hello": "world"}
+
+        loaded = kv_store.load("k1")
+        assert loaded == {"hello": "world"}
+
+    def test_load_returns_cached_value_without_pg_hit(
+        self, pg_cache: PostgresCacheBackend
+    ) -> None:
+        """If the cache already has the value, PG should not be queried."""
+        pg_cache.set(REDIS_KEY_PREFIX + "cached_only", json.dumps({"from": "cache"}))
+        kv = PgRedisKVStore(cache=pg_cache)
+        assert kv.load("cached_only") == {"from": "cache"}
+
+    def test_load_falls_through_to_pg_on_cache_miss(
+        self, kv_store: PgRedisKVStore, pg_cache: PostgresCacheBackend
+    ) -> None:
+        kv_store.store("k2", [1, 2, 3])
+
+        pg_cache.delete(REDIS_KEY_PREFIX + "k2")
+        assert pg_cache.get(REDIS_KEY_PREFIX + "k2") is None
+
+        loaded = kv_store.load("k2")
+        assert loaded == [1, 2, 3]
+
+        repopulated = pg_cache.get(REDIS_KEY_PREFIX + "k2")
+        assert repopulated is not None
+        assert json.loads(repopulated) == [1, 2, 3]
+
+    def test_load_with_refresh_cache_skips_cache(
+        self, kv_store: PgRedisKVStore, pg_cache: PostgresCacheBackend
+    ) -> None:
+        kv_store.store("k3", "original")
+
+        pg_cache.set(REDIS_KEY_PREFIX + "k3", json.dumps("stale"))
+
+        loaded = kv_store.load("k3", refresh_cache=True)
+        assert loaded == "original"
+
+
+class TestDelete:
+    def test_delete_removes_from_cache_and_pg(
+        self, kv_store: PgRedisKVStore, pg_cache: PostgresCacheBackend
+    ) -> None:
+        kv_store.store("del_me", "bye")
+        kv_store.delete("del_me")
+
+        assert pg_cache.get(REDIS_KEY_PREFIX + "del_me") is None
+
+        with pytest.raises(KvKeyNotFoundError):
+            kv_store.load("del_me")
+
+    def test_delete_missing_key_raises(self, kv_store: PgRedisKVStore) -> None:
+        with pytest.raises(KvKeyNotFoundError):
+            kv_store.delete("nonexistent")
+
+
+class TestCacheFailureGracefulDegradation:
+    def test_store_succeeds_when_cache_set_raises(self) -> None:
+        failing_cache = MagicMock(spec=CacheBackend)
+        failing_cache.set.side_effect = ConnectionError("cache down")
+
+        kv = PgRedisKVStore(cache=failing_cache)
+        kv.store("resilient", {"data": True})
+
+        working_cache = MagicMock(spec=CacheBackend)
+        working_cache.get.return_value = None
+        kv_reader = PgRedisKVStore(cache=working_cache)
+        loaded = kv_reader.load("resilient")
+        assert loaded == {"data": True}
+
+    def test_load_falls_through_when_cache_get_raises(self) -> None:
+        failing_cache = MagicMock(spec=CacheBackend)
+        failing_cache.get.side_effect = ConnectionError("cache down")
+        failing_cache.set.side_effect = ConnectionError("cache down")
+
+        kv = PgRedisKVStore(cache=failing_cache)
+        kv.store("survive", 42)
+        loaded = kv.load("survive")
+        assert loaded == 42

backend/tests/external_dependency_unit/cache/test_postgres_cache_backend.py

@@ -0,0 +1,229 @@
+"""Tests for PostgresCacheBackend against real PostgreSQL.
+
+Covers every method on the backend: KV CRUD, TTL behaviour, advisory
+locks (acquire / release / contention), list operations (rpush / blpop),
+and the periodic cleanup function.
+"""
+
+import time
+from uuid import uuid4
+
+from sqlalchemy import select
+
+from onyx.cache.interface import TTL_KEY_NOT_FOUND
+from onyx.cache.interface import TTL_NO_EXPIRY
+from onyx.cache.postgres_backend import cleanup_expired_cache_entries
+from onyx.cache.postgres_backend import PostgresCacheBackend
+from onyx.db.models import CacheStore
+
+
+def _key() -> str:
+    return f"test_{uuid4().hex[:12]}"
+
+
+# ------------------------------------------------------------------
+# Basic KV
+# ------------------------------------------------------------------
+
+
+class TestKV:
+    def test_get_set(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"hello")
+        assert pg_cache.get(k) == b"hello"
+
+    def test_get_missing(self, pg_cache: PostgresCacheBackend) -> None:
+        assert pg_cache.get(_key()) is None
+
+    def test_set_overwrite(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"first")
+        pg_cache.set(k, b"second")
+        assert pg_cache.get(k) == b"second"
+
+    def test_set_string_value(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, "string_val")
+        assert pg_cache.get(k) == b"string_val"
+
+    def test_set_int_value(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, 42)
+        assert pg_cache.get(k) == b"42"
+
+    def test_delete(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"to_delete")
+        pg_cache.delete(k)
+        assert pg_cache.get(k) is None
+
+    def test_delete_missing_is_noop(self, pg_cache: PostgresCacheBackend) -> None:
+        pg_cache.delete(_key())
+
+    def test_exists(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        assert not pg_cache.exists(k)
+        pg_cache.set(k, b"x")
+        assert pg_cache.exists(k)
+
+
+# ------------------------------------------------------------------
+# TTL
+# ------------------------------------------------------------------
+
+
+class TestTTL:
+    def test_set_with_ttl_expires(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"ephemeral", ex=1)
+        assert pg_cache.get(k) == b"ephemeral"
+        time.sleep(1.5)
+        assert pg_cache.get(k) is None
+
+    def test_ttl_no_expiry(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"forever")
+        assert pg_cache.ttl(k) == TTL_NO_EXPIRY
+
+    def test_ttl_missing_key(self, pg_cache: PostgresCacheBackend) -> None:
+        assert pg_cache.ttl(_key()) == TTL_KEY_NOT_FOUND
+
+    def test_ttl_remaining(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"x", ex=10)
+        remaining = pg_cache.ttl(k)
+        assert 8 <= remaining <= 10
+
+    def test_ttl_expired_key(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"x", ex=1)
+        time.sleep(1.5)
+        assert pg_cache.ttl(k) == TTL_KEY_NOT_FOUND
+
+    def test_expire_adds_ttl(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"x")
+        assert pg_cache.ttl(k) == TTL_NO_EXPIRY
+        pg_cache.expire(k, 10)
+        assert 8 <= pg_cache.ttl(k) <= 10
+
+    def test_exists_respects_ttl(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"x", ex=1)
+        assert pg_cache.exists(k)
+        time.sleep(1.5)
+        assert not pg_cache.exists(k)
+
+
+# ------------------------------------------------------------------
+# Locks
+# ------------------------------------------------------------------
+
+
+class TestLock:
+    def test_acquire_release(self, pg_cache: PostgresCacheBackend) -> None:
+        lock = pg_cache.lock(f"lock_{uuid4().hex[:8]}")
+        assert lock.acquire(blocking=False)
+        assert lock.owned()
+        lock.release()
+        assert not lock.owned()
+
+    def test_contention(self, pg_cache: PostgresCacheBackend) -> None:
+        name = f"contention_{uuid4().hex[:8]}"
+        lock1 = pg_cache.lock(name)
+        lock2 = pg_cache.lock(name)
+
+        assert lock1.acquire(blocking=False)
+        assert not lock2.acquire(blocking=False)
+
+        lock1.release()
+        assert lock2.acquire(blocking=False)
+        lock2.release()
+
+    def test_context_manager(self, pg_cache: PostgresCacheBackend) -> None:
+        with pg_cache.lock(f"ctx_{uuid4().hex[:8]}") as lock:
+            assert lock.owned()
+        assert not lock.owned()
+
+    def test_blocking_timeout(self, pg_cache: PostgresCacheBackend) -> None:
+        name = f"timeout_{uuid4().hex[:8]}"
+        holder = pg_cache.lock(name)
+        holder.acquire(blocking=False)
+
+        waiter = pg_cache.lock(name, timeout=0.3)
+        start = time.monotonic()
+        assert not waiter.acquire(blocking=True, blocking_timeout=0.3)
+        elapsed = time.monotonic() - start
+        assert elapsed >= 0.25
+
+        holder.release()
+
+
+# ------------------------------------------------------------------
+# List (rpush / blpop)
+# ------------------------------------------------------------------
+
+
+class TestList:
+    def test_rpush_blpop(self, pg_cache: PostgresCacheBackend) -> None:
+        k = f"list_{uuid4().hex[:8]}"
+        pg_cache.rpush(k, b"item1")
+        result = pg_cache.blpop([k], timeout=1)
+        assert result is not None
+        assert result == (k.encode(), b"item1")
+
+    def test_blpop_timeout(self, pg_cache: PostgresCacheBackend) -> None:
+        result = pg_cache.blpop([f"empty_{uuid4().hex[:8]}"], timeout=1)
+        assert result is None
+
+    def test_fifo_order(self, pg_cache: PostgresCacheBackend) -> None:
+        k = f"fifo_{uuid4().hex[:8]}"
+        pg_cache.rpush(k, b"first")
+        time.sleep(0.01)
+        pg_cache.rpush(k, b"second")
+
+        r1 = pg_cache.blpop([k], timeout=1)
+        r2 = pg_cache.blpop([k], timeout=1)
+        assert r1 is not None and r1[1] == b"first"
+        assert r2 is not None and r2[1] == b"second"
+
+    def test_multiple_keys(self, pg_cache: PostgresCacheBackend) -> None:
+        k1 = f"mk1_{uuid4().hex[:8]}"
+        k2 = f"mk2_{uuid4().hex[:8]}"
+        pg_cache.rpush(k2, b"from_k2")
+
+        result = pg_cache.blpop([k1, k2], timeout=1)
+        assert result is not None
+        assert result == (k2.encode(), b"from_k2")
+
+
+# ------------------------------------------------------------------
+# Cleanup
+# ------------------------------------------------------------------
+
+
+class TestCleanup:
+    def test_removes_expired_rows(self, pg_cache: PostgresCacheBackend) -> None:
+        from onyx.db.engine.sql_engine import get_session_with_current_tenant
+
+        k = _key()
+        pg_cache.set(k, b"stale", ex=1)
+        time.sleep(1.5)
+        cleanup_expired_cache_entries()
+
+        stmt = select(CacheStore.key).where(CacheStore.key == k)
+        with get_session_with_current_tenant() as session:
+            row = session.execute(stmt).first()
+        assert row is None, "expired row should be physically deleted"
+
+    def test_preserves_unexpired_rows(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"fresh", ex=300)
+        cleanup_expired_cache_entries()
+        assert pg_cache.get(k) == b"fresh"
+
+    def test_preserves_no_ttl_rows(self, pg_cache: PostgresCacheBackend) -> None:
+        k = _key()
+        pg_cache.set(k, b"permanent")
+        cleanup_expired_cache_entries()
+        assert pg_cache.get(k) == b"permanent"

backend/tests/external_dependency_unit/celery/test_persona_file_sync.py

@@ -36,7 +36,6 @@ from onyx.background.celery.tasks.user_file_processing.tasks import (
 from onyx.background.celery.tasks.user_file_processing.tasks import (
     user_file_project_sync_lock_key,
 )
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.enums import UserFileStatus
 from onyx.db.models import Persona
 from onyx.db.models import Persona__UserFile
@@ -86,12 +85,6 @@ def _create_test_persona(
     persona = Persona(
         name=f"Test Persona {uuid4().hex[:8]}",
         description="Test persona",
-        num_chunks=10.0,
-        chunks_above=0,
-        chunks_below=0,
-        llm_relevance_filter=False,
-        llm_filter_extraction=False,
-        recency_bias=RecencyBiasSetting.NO_DECAY,
         system_prompt="You are a test assistant",
         task_prompt="Answer the question",
         tools=[],
@@ -410,10 +403,6 @@ class TestUpsertPersonaMarksSyncFlag:
             user=user,
             name=f"persona-{uuid4().hex[:8]}",
             description="test",
-            num_chunks=10.0,
-            llm_relevance_filter=False,
-            llm_filter_extraction=False,
-            recency_bias=RecencyBiasSetting.NO_DECAY,
             llm_model_provider_override=None,
             llm_model_version_override=None,
             starter_messages=None,
@@ -442,10 +431,6 @@ class TestUpsertPersonaMarksSyncFlag:
             user=user,
             name=f"persona-{uuid4().hex[:8]}",
             description="test",
-            num_chunks=10.0,
-            llm_relevance_filter=False,
-            llm_filter_extraction=False,
-            recency_bias=RecencyBiasSetting.NO_DECAY,
             llm_model_provider_override=None,
             llm_model_version_override=None,
             starter_messages=None,
@@ -461,16 +446,11 @@ class TestUpsertPersonaMarksSyncFlag:
         uf_old.needs_persona_sync = False
         db_session.commit()
 
-        assert persona.num_chunks is not None
         # Now update the persona to swap files
         upsert_persona(
             user=user,
             name=persona.name,
             description=persona.description,
-            num_chunks=persona.num_chunks,
-            llm_relevance_filter=persona.llm_relevance_filter,
-            llm_filter_extraction=persona.llm_filter_extraction,
-            recency_bias=persona.recency_bias,
             llm_model_provider_override=None,
             llm_model_version_override=None,
             starter_messages=None,
@@ -501,10 +481,6 @@ class TestUpsertPersonaMarksSyncFlag:
             user=user,
             name=f"persona-{uuid4().hex[:8]}",
             description="test",
-            num_chunks=10.0,
-            llm_relevance_filter=False,
-            llm_filter_extraction=False,
-            recency_bias=RecencyBiasSetting.NO_DECAY,
             llm_model_provider_override=None,
             llm_model_version_override=None,
             starter_messages=None,
@@ -519,15 +495,10 @@ class TestUpsertPersonaMarksSyncFlag:
         uf.needs_persona_sync = False
         db_session.commit()
 
-        assert persona.num_chunks is not None
         upsert_persona(
             user=user,
             name=persona.name,
             description=persona.description,
-            num_chunks=persona.num_chunks,
-            llm_relevance_filter=persona.llm_relevance_filter,
-            llm_filter_extraction=persona.llm_filter_extraction,
-            recency_bias=persona.recency_bias,
             llm_model_provider_override=None,
             llm_model_version_override=None,
             starter_messages=None,

backend/tests/external_dependency_unit/celery/test_user_file_indexing_adapter.py

@@ -18,7 +18,6 @@ from sqlalchemy.orm import Session
 from onyx.configs.constants import DocumentSource
 from onyx.connectors.models import Document
 from onyx.connectors.models import TextSection
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.enums import UserFileStatus
 from onyx.db.models import Persona
 from onyx.db.models import Persona__UserFile
@@ -58,12 +57,6 @@ def _create_persona(db_session: Session, user: User) -> Persona:
     persona = Persona(
         name=f"Test Persona {uuid4().hex[:8]}",
         description="Test persona",
-        num_chunks=10.0,
-        chunks_above=0,
-        chunks_below=0,
-        llm_relevance_filter=False,
-        llm_filter_extraction=False,
-        recency_bias=RecencyBiasSetting.NO_DECAY,
         system_prompt="test",
         task_prompt="test",
         tools=[],

backend/tests/external_dependency_unit/slack_bot/test_slack_bot_federated_search.py

@@ -22,7 +22,6 @@ from sqlalchemy.orm import Session
 from slack_sdk.errors import SlackApiError
 
 from onyx.configs.constants import FederatedConnectorSource
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.context.search.federated.slack_search import fetch_and_cache_channel_metadata
 from onyx.db.models import DocumentSet
 from onyx.db.models import FederatedConnector
@@ -55,11 +54,6 @@ def _create_test_persona_with_slack_config(db_session: Session) -> Persona | Non
     persona = Persona(
         name=f"test_slack_persona_{unique_id}",
         description="Test persona for Slack federated search",
-        chunks_above=0,
-        chunks_below=0,
-        llm_relevance_filter=True,
-        llm_filter_extraction=True,
-        recency_bias=RecencyBiasSetting.AUTO,
         system_prompt="You are a helpful assistant.",
         task_prompt="Answer the user's question based on the provided context.",
     )
@@ -818,11 +812,6 @@ def test_slack_channel_config_eager_loads_persona(db_session: Session) -> None:
     persona = Persona(
         name=f"test_eager_load_persona_{unique_id}",
         description="Test persona for eager loading test",
-        chunks_above=0,
-        chunks_below=0,
-        llm_relevance_filter=True,
-        llm_filter_extraction=True,
-        recency_bias=RecencyBiasSetting.AUTO,
         system_prompt="You are a helpful assistant.",
         task_prompt="Answer the user's question.",
     )

backend/tests/external_dependency_unit/tools/test_mcp_passthrough_oauth.py

@@ -21,7 +21,6 @@ import pytest
 from sqlalchemy.orm import Session
 
 from onyx.chat.emitter import get_default_emitter
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.enums import MCPAuthenticationPerformer
 from onyx.db.enums import MCPAuthenticationType
 from onyx.db.enums import MCPTransport
@@ -47,12 +46,6 @@ def _create_test_persona_with_mcp_tool(
     persona = Persona(
         name=f"Test MCP Persona {uuid4().hex[:8]}",
         description="Test persona with MCP tools",
-        num_chunks=10.0,
-        chunks_above=0,
-        chunks_below=0,
-        llm_relevance_filter=False,
-        llm_filter_extraction=False,
-        recency_bias=RecencyBiasSetting.NO_DECAY,
         system_prompt="You are a helpful assistant",
         task_prompt="Answer the user's question",
         tools=tools,

backend/tests/external_dependency_unit/tools/test_oauth_tool_integration.py

@@ -17,7 +17,6 @@ import pytest
 from sqlalchemy.orm import Session
 
 from onyx.chat.emitter import get_default_emitter
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.models import OAuthAccount
 from onyx.db.models import OAuthConfig
 from onyx.db.models import Persona
@@ -57,12 +56,6 @@ def _create_test_persona(db_session: Session, user: User, tools: list[Tool]) ->
     persona = Persona(
         name=f"Test Persona {uuid4().hex[:8]}",
         description="Test persona",
-        num_chunks=10.0,
-        chunks_above=0,
-        chunks_below=0,
-        llm_relevance_filter=False,
-        llm_filter_extraction=False,
-        recency_bias=RecencyBiasSetting.NO_DECAY,
         system_prompt="You are a helpful assistant",
         task_prompt="Answer the user's question",
         tools=tools,

backend/tests/external_dependency_unit/tools/test_python_tool.py

@@ -933,6 +933,7 @@ from unittest.mock import patch
 
 import pytest
 from fastapi import UploadFile
+from fastapi.background import BackgroundTasks
 from sqlalchemy.orm import Session
 from starlette.datastructures import Headers
 
@@ -1139,6 +1140,7 @@ def test_code_interpreter_receives_chat_files(
     # Upload a test CSV
     csv_content = b"name,age,city\nAlice,30,NYC\nBob,25,SF\n"
     result = upload_user_files(
+        bg_tasks=BackgroundTasks(),
         files=[
             UploadFile(
                 file=io.BytesIO(csv_content),

backend/tests/integration/common_utils/managers/persona.py

@@ -3,7 +3,6 @@ from uuid import uuid4
 
 import requests
 
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.server.features.persona.models import FullPersonaSnapshot
 from onyx.server.features.persona.models import PersonaUpsertRequest
 from tests.integration.common_utils.constants import API_SERVER_URL
@@ -20,11 +19,7 @@ class PersonaManager:
         description: str | None = None,
         system_prompt: str | None = None,
         task_prompt: str | None = None,
-        num_chunks: float = 5,
-        llm_relevance_filter: bool = True,
         is_public: bool = True,
-        llm_filter_extraction: bool = True,
-        recency_bias: RecencyBiasSetting = RecencyBiasSetting.AUTO,
         datetime_aware: bool = False,
         document_set_ids: list[int] | None = None,
         tool_ids: list[int] | None = None,
@@ -35,6 +30,7 @@ class PersonaManager:
         label_ids: list[int] | None = None,
         user_file_ids: list[str] | None = None,
         display_priority: int | None = None,
+        featured: bool = False,
     ) -> DATestPersona:
         name = name or f"test-persona-{uuid4()}"
         description = description or f"Description for {name}"
@@ -47,11 +43,7 @@ class PersonaManager:
             system_prompt=system_prompt,
             task_prompt=task_prompt,
             datetime_aware=datetime_aware,
-            num_chunks=num_chunks,
-            llm_relevance_filter=llm_relevance_filter,
             is_public=is_public,
-            llm_filter_extraction=llm_filter_extraction,
-            recency_bias=recency_bias,
             document_set_ids=document_set_ids or [],
             tool_ids=tool_ids or [],
             llm_model_provider_override=llm_model_provider_override,
@@ -61,6 +53,7 @@ class PersonaManager:
             label_ids=label_ids or [],
             user_file_ids=user_file_ids or [],
             display_priority=display_priority,
+            featured=featured,
         )
 
         response = requests.post(
@@ -75,11 +68,7 @@ class PersonaManager:
             id=persona_data["id"],
             name=name,
             description=description,
-            num_chunks=num_chunks,
-            llm_relevance_filter=llm_relevance_filter,
             is_public=is_public,
-            llm_filter_extraction=llm_filter_extraction,
-            recency_bias=recency_bias,
             system_prompt=system_prompt,
             task_prompt=task_prompt,
             datetime_aware=datetime_aware,
@@ -90,6 +79,7 @@ class PersonaManager:
             users=users or [],
             groups=groups or [],
             label_ids=label_ids or [],
+            featured=featured,
         )
 
     @staticmethod
@@ -100,11 +90,7 @@ class PersonaManager:
         description: str | None = None,
         system_prompt: str | None = None,
         task_prompt: str | None = None,
-        num_chunks: float | None = None,
-        llm_relevance_filter: bool | None = None,
         is_public: bool | None = None,
-        llm_filter_extraction: bool | None = None,
-        recency_bias: RecencyBiasSetting | None = None,
         datetime_aware: bool = False,
         document_set_ids: list[int] | None = None,
         tool_ids: list[int] | None = None,
@@ -113,6 +99,7 @@ class PersonaManager:
         users: list[str] | None = None,
         groups: list[int] | None = None,
         label_ids: list[int] | None = None,
+        featured: bool | None = None,
     ) -> DATestPersona:
         system_prompt = system_prompt or f"System prompt for {persona.name}"
         task_prompt = task_prompt or f"Task prompt for {persona.name}"
@@ -123,13 +110,7 @@ class PersonaManager:
             system_prompt=system_prompt,
             task_prompt=task_prompt,
             datetime_aware=datetime_aware,
-            num_chunks=num_chunks or persona.num_chunks,
-            llm_relevance_filter=llm_relevance_filter or persona.llm_relevance_filter,
             is_public=persona.is_public if is_public is None else is_public,
-            llm_filter_extraction=(
-                llm_filter_extraction or persona.llm_filter_extraction
-            ),
-            recency_bias=recency_bias or persona.recency_bias,
             document_set_ids=document_set_ids or persona.document_set_ids,
             tool_ids=tool_ids or persona.tool_ids,
             llm_model_provider_override=(
@@ -141,6 +122,7 @@ class PersonaManager:
             users=[UUID(user) for user in (users or persona.users)],
             groups=groups or persona.groups,
             label_ids=label_ids or persona.label_ids,
+            featured=featured if featured is not None else persona.featured,
         )
 
         response = requests.patch(
@@ -155,16 +137,12 @@ class PersonaManager:
             id=updated_persona_data["id"],
             name=updated_persona_data["name"],
             description=updated_persona_data["description"],
-            num_chunks=updated_persona_data["num_chunks"],
-            llm_relevance_filter=updated_persona_data["llm_relevance_filter"],
             is_public=updated_persona_data["is_public"],
-            llm_filter_extraction=updated_persona_data["llm_filter_extraction"],
-            recency_bias=recency_bias or persona.recency_bias,
             system_prompt=system_prompt,
             task_prompt=task_prompt,
             datetime_aware=datetime_aware,
-            document_set_ids=updated_persona_data["document_sets"],
-            tool_ids=updated_persona_data["tools"],
+            document_set_ids=[ds["id"] for ds in updated_persona_data["document_sets"]],
+            tool_ids=[t["id"] for t in updated_persona_data["tools"]],
             llm_model_provider_override=updated_persona_data[
                 "llm_model_provider_override"
             ],
@@ -173,7 +151,8 @@ class PersonaManager:
             ],
             users=[user["email"] for user in updated_persona_data["users"]],
             groups=updated_persona_data["groups"],
-            label_ids=updated_persona_data["labels"],
+            label_ids=[label["id"] for label in updated_persona_data["labels"]],
+            featured=updated_persona_data["featured"],
         )
 
     @staticmethod
@@ -222,32 +201,13 @@ class PersonaManager:
                             fetched_persona.description,
                         )
                     )
-                if fetched_persona.num_chunks != persona.num_chunks:
-                    mismatches.append(
-                        ("num_chunks", persona.num_chunks, fetched_persona.num_chunks)
-                    )
-                if fetched_persona.llm_relevance_filter != persona.llm_relevance_filter:
-                    mismatches.append(
-                        (
-                            "llm_relevance_filter",
-                            persona.llm_relevance_filter,
-                            fetched_persona.llm_relevance_filter,
-                        )
-                    )
                 if fetched_persona.is_public != persona.is_public:
                     mismatches.append(
                         ("is_public", persona.is_public, fetched_persona.is_public)
                     )
-                if (
-                    fetched_persona.llm_filter_extraction
-                    != persona.llm_filter_extraction
-                ):
+                if fetched_persona.featured != persona.featured:
                     mismatches.append(
-                        (
-                            "llm_filter_extraction",
-                            persona.llm_filter_extraction,
-                            fetched_persona.llm_filter_extraction,
-                        )
+                        ("featured", persona.featured, fetched_persona.featured)
                     )
                 if (
                     fetched_persona.llm_model_provider_override

backend/tests/integration/common_utils/managers/scim_client.py

@@ -0,0 +1,66 @@
+import requests
+
+from tests.integration.common_utils.constants import API_SERVER_URL
+from tests.integration.common_utils.constants import GENERAL_HEADERS
+
+
+class ScimClient:
+    """HTTP client for making authenticated SCIM v2 requests."""
+
+    @staticmethod
+    def _headers(raw_token: str) -> dict[str, str]:
+        return {
+            **GENERAL_HEADERS,
+            "Authorization": f"Bearer {raw_token}",
+        }
+
+    @staticmethod
+    def get(path: str, raw_token: str) -> requests.Response:
+        return requests.get(
+            f"{API_SERVER_URL}/scim/v2{path}",
+            headers=ScimClient._headers(raw_token),
+            timeout=60,
+        )
+
+    @staticmethod
+    def post(path: str, raw_token: str, json: dict) -> requests.Response:
+        return requests.post(
+            f"{API_SERVER_URL}/scim/v2{path}",
+            json=json,
+            headers=ScimClient._headers(raw_token),
+            timeout=60,
+        )
+
+    @staticmethod
+    def put(path: str, raw_token: str, json: dict) -> requests.Response:
+        return requests.put(
+            f"{API_SERVER_URL}/scim/v2{path}",
+            json=json,
+            headers=ScimClient._headers(raw_token),
+            timeout=60,
+        )
+
+    @staticmethod
+    def patch(path: str, raw_token: str, json: dict) -> requests.Response:
+        return requests.patch(
+            f"{API_SERVER_URL}/scim/v2{path}",
+            json=json,
+            headers=ScimClient._headers(raw_token),
+            timeout=60,
+        )
+
+    @staticmethod
+    def delete(path: str, raw_token: str) -> requests.Response:
+        return requests.delete(
+            f"{API_SERVER_URL}/scim/v2{path}",
+            headers=ScimClient._headers(raw_token),
+            timeout=60,
+        )
+
+    @staticmethod
+    def get_no_auth(path: str) -> requests.Response:
+        return requests.get(
+            f"{API_SERVER_URL}/scim/v2{path}",
+            headers=GENERAL_HEADERS,
+            timeout=60,
+        )

backend/tests/integration/common_utils/managers/scim_token.py

@@ -1,7 +1,6 @@
 import requests
 
 from tests.integration.common_utils.constants import API_SERVER_URL
-from tests.integration.common_utils.constants import GENERAL_HEADERS
 from tests.integration.common_utils.test_models import DATestScimToken
 from tests.integration.common_utils.test_models import DATestUser
 
@@ -51,29 +50,3 @@ class ScimTokenManager:
             created_at=data["created_at"],
             last_used_at=data.get("last_used_at"),
         )
-
-    @staticmethod
-    def get_scim_headers(raw_token: str) -> dict[str, str]:
-        return {
-            **GENERAL_HEADERS,
-            "Authorization": f"Bearer {raw_token}",
-        }
-
-    @staticmethod
-    def scim_get(
-        path: str,
-        raw_token: str,
-    ) -> requests.Response:
-        return requests.get(
-            f"{API_SERVER_URL}/scim/v2{path}",
-            headers=ScimTokenManager.get_scim_headers(raw_token),
-            timeout=60,
-        )
-
-    @staticmethod
-    def scim_get_no_auth(path: str) -> requests.Response:
-        return requests.get(
-            f"{API_SERVER_URL}/scim/v2{path}",
-            headers=GENERAL_HEADERS,
-            timeout=60,
-        )

backend/tests/integration/common_utils/test_models.py

@@ -10,7 +10,6 @@ from pydantic import Field
 from onyx.auth.schemas import UserRole
 from onyx.configs.constants import MessageType
 from onyx.configs.constants import QAFeedbackType
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.context.search.models import SavedSearchDoc
 from onyx.context.search.models import SearchDoc
 from onyx.db.enums import AccessType
@@ -162,11 +161,7 @@ class DATestPersona(BaseModel):
     id: int
     name: str
     description: str
-    num_chunks: float
-    llm_relevance_filter: bool
     is_public: bool
-    llm_filter_extraction: bool
-    recency_bias: RecencyBiasSetting
     document_set_ids: list[int]
     tool_ids: list[int]
     llm_model_provider_override: str | None
@@ -174,6 +169,7 @@ class DATestPersona(BaseModel):
     users: list[str]
     groups: list[int]
     label_ids: list[int]
+    featured: bool = False
 
     # Embedded prompt fields (no longer separate prompt_ids)
     system_prompt: str | None = None

backend/tests/integration/tests/discord_bot/test_discord_bot_db.py

@@ -8,7 +8,6 @@ from collections.abc import Generator
 import pytest
 from sqlalchemy.orm import Session
 
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.discord_bot import bulk_create_channel_configs
 from onyx.db.discord_bot import create_discord_bot_config
 from onyx.db.discord_bot import create_guild_config
@@ -36,14 +35,8 @@ def _create_test_persona(db_session: Session, persona_id: int, name: str) -> Per
         id=persona_id,
         name=name,
         description="Test persona for Discord bot tests",
-        num_chunks=5.0,
-        chunks_above=1,
-        chunks_below=1,
-        llm_relevance_filter=False,
-        llm_filter_extraction=False,
-        recency_bias=RecencyBiasSetting.FAVOR_RECENT,
         is_visible=True,
-        is_default_persona=False,
+        featured=False,
         deleted=False,
         builtin_persona=False,
     )

backend/tests/integration/tests/indexing/test_checkpointing.py

@@ -414,6 +414,24 @@ def test_mock_connector_checkpoint_recovery(
     )
     assert finished_index_attempt.status == IndexingStatus.FAILED
 
+    # Pause the connector immediately to prevent check_for_indexing from
+    # creating automatic retry attempts while we reset the mock server.
+    # Without this, the INITIAL_INDEXING status causes immediate retries
+    # that would consume (or fail against) the mock server before we can
+    # set up the recovery behavior.
+    CCPairManager.pause_cc_pair(cc_pair, user_performing_action=admin_user)
+
+    # Collect all index attempt IDs created so far (the initial one plus
+    # any automatic retries that may have started before the pause took effect).
+    all_prior_attempt_ids: list[int] = []
+    index_attempts_page = IndexAttemptManager.get_index_attempt_page(
+        cc_pair_id=cc_pair.id,
+        page=0,
+        page_size=100,
+        user_performing_action=admin_user,
+    )
+    all_prior_attempt_ids = [ia.id for ia in index_attempts_page.items]
+
     # Verify initial state: both docs should be indexed
     with get_session_with_current_tenant() as db_session:
         documents = DocumentManager.fetch_documents_for_cc_pair(
@@ -465,17 +483,14 @@ def test_mock_connector_checkpoint_recovery(
     )
     assert response.status_code == 200
 
-    # After the failure, the connector is in repeated error state and paused.
-    # Set the manual indexing trigger first (while paused), then unpause.
-    # This ensures the trigger is set before CHECK_FOR_INDEXING runs, which will
-    # prevent the connector from being re-paused when repeated error state is detected.
+    # Set the manual indexing trigger, then unpause to allow the recovery run.
     CCPairManager.run_once(
         cc_pair, from_beginning=False, user_performing_action=admin_user
     )
     CCPairManager.unpause_cc_pair(cc_pair, user_performing_action=admin_user)
     recovery_index_attempt = IndexAttemptManager.wait_for_index_attempt_start(
         cc_pair_id=cc_pair.id,
-        index_attempts_to_ignore=[initial_index_attempt.id],
+        index_attempts_to_ignore=all_prior_attempt_ids,
         user_performing_action=admin_user,
     )
     IndexAttemptManager.wait_for_index_attempt_completion(

backend/tests/integration/tests/indexing/test_repeated_error_state.py

@@ -130,8 +130,8 @@ def test_repeated_error_state_detection_and_recovery(
                 #     )
                 break
 
-        if time.monotonic() - start_time > 30:
-            assert False, "CC pair did not enter repeated error state within 30 seconds"
+        if time.monotonic() - start_time > 90:
+            assert False, "CC pair did not enter repeated error state within 90 seconds"
 
         time.sleep(2)
 

backend/tests/integration/tests/llm_provider/test_llm_provider.py

@@ -386,6 +386,261 @@ def test_delete_llm_provider(
     assert provider_data is None
 
 
+def test_delete_default_llm_provider_rejected(reset: None) -> None:  # noqa: ARG001
+    """Deleting the default LLM provider should return 400."""
+    admin_user = UserManager.create(name="admin_user")
+
+    # Create a provider
+    response = requests.put(
+        f"{API_SERVER_URL}/admin/llm/provider?is_creation=true",
+        headers=admin_user.headers,
+        json={
+            "name": "test-provider-default-delete",
+            "provider": LlmProviderNames.OPENAI,
+            "api_key": "sk-000000000000000000000000000000000000000000000000",
+            "model_configurations": [
+                ModelConfigurationUpsertRequest(
+                    name="gpt-4o-mini", is_visible=True
+                ).model_dump()
+            ],
+            "is_public": True,
+            "groups": [],
+        },
+    )
+    assert response.status_code == 200
+    created_provider = response.json()
+
+    # Set this provider as the default
+    set_default_response = requests.post(
+        f"{API_SERVER_URL}/admin/llm/default",
+        headers=admin_user.headers,
+        json={
+            "provider_id": created_provider["id"],
+            "model_name": "gpt-4o-mini",
+        },
+    )
+    assert set_default_response.status_code == 200
+
+    # Attempt to delete the default provider — should be rejected
+    delete_response = requests.delete(
+        f"{API_SERVER_URL}/admin/llm/provider/{created_provider['id']}",
+        headers=admin_user.headers,
+    )
+    assert delete_response.status_code == 400
+    assert "Cannot delete the default LLM provider" in delete_response.json()["detail"]
+
+    # Verify provider still exists
+    provider_data = _get_provider_by_id(admin_user, created_provider["id"])
+    assert provider_data is not None
+
+
+def test_delete_non_default_llm_provider_with_default_set(
+    reset: None,  # noqa: ARG001
+) -> None:
+    """Deleting a non-default provider should succeed even when a default is set."""
+    admin_user = UserManager.create(name="admin_user")
+
+    # Create two providers
+    response_default = requests.put(
+        f"{API_SERVER_URL}/admin/llm/provider?is_creation=true",
+        headers=admin_user.headers,
+        json={
+            "name": "default-provider",
+            "provider": LlmProviderNames.OPENAI,
+            "api_key": "sk-000000000000000000000000000000000000000000000000",
+            "model_configurations": [
+                ModelConfigurationUpsertRequest(
+                    name="gpt-4o-mini", is_visible=True
+                ).model_dump()
+            ],
+            "is_public": True,
+            "groups": [],
+        },
+    )
+    assert response_default.status_code == 200
+    default_provider = response_default.json()
+
+    response_other = requests.put(
+        f"{API_SERVER_URL}/admin/llm/provider?is_creation=true",
+        headers=admin_user.headers,
+        json={
+            "name": "other-provider",
+            "provider": LlmProviderNames.OPENAI,
+            "api_key": "sk-000000000000000000000000000000000000000000000000",
+            "model_configurations": [
+                ModelConfigurationUpsertRequest(
+                    name="gpt-4o", is_visible=True
+                ).model_dump()
+            ],
+            "is_public": True,
+            "groups": [],
+        },
+    )
+    assert response_other.status_code == 200
+    other_provider = response_other.json()
+
+    # Set the first provider as default
+    set_default_response = requests.post(
+        f"{API_SERVER_URL}/admin/llm/default",
+        headers=admin_user.headers,
+        json={
+            "provider_id": default_provider["id"],
+            "model_name": "gpt-4o-mini",
+        },
+    )
+    assert set_default_response.status_code == 200
+
+    # Delete the non-default provider — should succeed
+    delete_response = requests.delete(
+        f"{API_SERVER_URL}/admin/llm/provider/{other_provider['id']}",
+        headers=admin_user.headers,
+    )
+    assert delete_response.status_code == 200
+
+    # Verify the non-default provider is gone
+    provider_data = _get_provider_by_id(admin_user, other_provider["id"])
+    assert provider_data is None
+
+    # Verify the default provider still exists
+    default_data = _get_provider_by_id(admin_user, default_provider["id"])
+    assert default_data is not None
+
+
+def test_force_delete_default_llm_provider(
+    reset: None,  # noqa: ARG001
+) -> None:
+    """Force-deleting the default LLM provider should succeed."""
+    admin_user = UserManager.create(name="admin_user")
+
+    # Create a provider
+    response = requests.put(
+        f"{API_SERVER_URL}/admin/llm/provider?is_creation=true",
+        headers=admin_user.headers,
+        json={
+            "name": "test-provider-force-delete",
+            "provider": LlmProviderNames.OPENAI,
+            "api_key": "sk-000000000000000000000000000000000000000000000000",
+            "model_configurations": [
+                ModelConfigurationUpsertRequest(
+                    name="gpt-4o-mini", is_visible=True
+                ).model_dump()
+            ],
+            "is_public": True,
+            "groups": [],
+        },
+    )
+    assert response.status_code == 200
+    created_provider = response.json()
+
+    # Set this provider as the default
+    set_default_response = requests.post(
+        f"{API_SERVER_URL}/admin/llm/default",
+        headers=admin_user.headers,
+        json={
+            "provider_id": created_provider["id"],
+            "model_name": "gpt-4o-mini",
+        },
+    )
+    assert set_default_response.status_code == 200
+
+    # Attempt to delete without force — should be rejected
+    delete_response = requests.delete(
+        f"{API_SERVER_URL}/admin/llm/provider/{created_provider['id']}",
+        headers=admin_user.headers,
+    )
+    assert delete_response.status_code == 400
+
+    # Force delete — should succeed
+    force_delete_response = requests.delete(
+        f"{API_SERVER_URL}/admin/llm/provider/{created_provider['id']}?force=true",
+        headers=admin_user.headers,
+    )
+    assert force_delete_response.status_code == 200
+
+    # Verify provider is gone
+    provider_data = _get_provider_by_id(admin_user, created_provider["id"])
+    assert provider_data is None
+
+
+def test_delete_default_vision_provider_clears_vision_default(
+    reset: None,  # noqa: ARG001
+) -> None:
+    """Deleting the default vision provider should succeed and clear the vision default."""
+    admin_user = UserManager.create(name="admin_user")
+
+    # Create a text provider and set it as default (so we have a default text provider)
+    text_response = requests.put(
+        f"{API_SERVER_URL}/admin/llm/provider?is_creation=true",
+        headers=admin_user.headers,
+        json={
+            "name": "text-provider",
+            "provider": LlmProviderNames.OPENAI,
+            "api_key": "sk-000000000000000000000000000000000000000000000001",
+            "model_configurations": [
+                ModelConfigurationUpsertRequest(
+                    name="gpt-4o-mini", is_visible=True
+                ).model_dump()
+            ],
+            "is_public": True,
+            "groups": [],
+        },
+    )
+    assert text_response.status_code == 200
+    text_provider = text_response.json()
+    _set_default_provider(admin_user, text_provider["id"], "gpt-4o-mini")
+
+    # Create a vision provider and set it as default vision
+    vision_response = requests.put(
+        f"{API_SERVER_URL}/admin/llm/provider?is_creation=true",
+        headers=admin_user.headers,
+        json={
+            "name": "vision-provider",
+            "provider": LlmProviderNames.OPENAI,
+            "api_key": "sk-000000000000000000000000000000000000000000000002",
+            "model_configurations": [
+                ModelConfigurationUpsertRequest(
+                    name="gpt-4o",
+                    is_visible=True,
+                    supports_image_input=True,
+                ).model_dump()
+            ],
+            "is_public": True,
+            "groups": [],
+        },
+    )
+    assert vision_response.status_code == 200
+    vision_provider = vision_response.json()
+    _set_default_vision_provider(admin_user, vision_provider["id"], "gpt-4o")
+
+    # Verify vision default is set
+    data = _get_providers_admin(admin_user)
+    assert data is not None
+    _, _, vision_default = _unpack_data(data)
+    assert vision_default is not None
+    assert vision_default["provider_id"] == vision_provider["id"]
+
+    # Delete the vision provider — should succeed (only text default is protected)
+    delete_response = requests.delete(
+        f"{API_SERVER_URL}/admin/llm/provider/{vision_provider['id']}",
+        headers=admin_user.headers,
+    )
+    assert delete_response.status_code == 200
+
+    # Verify the vision provider is gone
+    provider_data = _get_provider_by_id(admin_user, vision_provider["id"])
+    assert provider_data is None
+
+    # Verify there is no default vision provider
+    data = _get_providers_admin(admin_user)
+    assert data is not None
+    _, text_default, vision_default = _unpack_data(data)
+    assert vision_default is None
+
+    # Verify the text default is still intact
+    assert text_default is not None
+    assert text_default["provider_id"] == text_provider["id"]
+
+
 def test_duplicate_provider_name_rejected(reset: None) -> None:  # noqa: ARG001
     """Creating a provider with a name that already exists should return 400."""
     admin_user = UserManager.create(name="admin_user")

backend/tests/integration/tests/llm_provider/test_llm_provider_access_control.py

@@ -4,7 +4,6 @@ import pytest
 import requests
 from sqlalchemy.orm import Session
 
-from onyx.context.search.enums import RecencyBiasSetting
 from onyx.db.engine.sql_engine import get_session_with_current_tenant
 from onyx.db.llm import can_user_access_llm_provider
 from onyx.db.llm import fetch_user_group_ids
@@ -78,12 +77,6 @@ def _create_persona(
     persona = Persona(
         name=name,
         description=f"{name} description",
-        num_chunks=5,
-        chunks_above=2,
-        chunks_below=2,
-        llm_relevance_filter=True,
-        llm_filter_extraction=True,
-        recency_bias=RecencyBiasSetting.AUTO,
         llm_model_provider_override=provider_name,
         llm_model_version_override="gpt-4o-mini",
         system_prompt="System prompt",
@@ -250,6 +243,116 @@ def test_can_user_access_llm_provider_or_logic(
         )
 
 
+def test_public_provider_with_persona_restrictions(
+    users: tuple[DATestUser, DATestUser],
+) -> None:
+    """Public providers should still enforce persona restrictions.
+
+    Regression test for the bug where is_public=True caused
+    can_user_access_llm_provider() to return True immediately,
+    bypassing persona whitelist checks entirely.
+    """
+    admin_user, _basic_user = users
+
+    with get_session_with_current_tenant() as db_session:
+        # Public provider with persona restrictions
+        public_restricted = _create_llm_provider(
+            db_session,
+            name="public-persona-restricted",
+            default_model_name="gpt-4o",
+            is_public=True,
+            is_default=True,
+        )
+
+        whitelisted_persona = _create_persona(
+            db_session,
+            name="whitelisted-persona",
+            provider_name=public_restricted.name,
+        )
+        non_whitelisted_persona = _create_persona(
+            db_session,
+            name="non-whitelisted-persona",
+            provider_name=public_restricted.name,
+        )
+
+        # Only whitelist one persona
+        db_session.add(
+            LLMProvider__Persona(
+                llm_provider_id=public_restricted.id,
+                persona_id=whitelisted_persona.id,
+            )
+        )
+        db_session.flush()
+        db_session.refresh(public_restricted)
+
+        admin_model = db_session.get(User, admin_user.id)
+        assert admin_model is not None
+        admin_group_ids = fetch_user_group_ids(db_session, admin_model)
+
+        # Whitelisted persona — should be allowed
+        assert can_user_access_llm_provider(
+            public_restricted,
+            admin_group_ids,
+            whitelisted_persona,
+        )
+
+        # Non-whitelisted persona — should be denied despite is_public=True
+        assert not can_user_access_llm_provider(
+            public_restricted,
+            admin_group_ids,
+            non_whitelisted_persona,
+        )
+
+        # No persona context (e.g. global provider list) — should be denied
+        # because provider has persona restrictions set
+        assert not can_user_access_llm_provider(
+            public_restricted,
+            admin_group_ids,
+            persona=None,
+        )
+
+
+def test_public_provider_without_persona_restrictions(
+    users: tuple[DATestUser, DATestUser],
+) -> None:
+    """Public providers with no persona restrictions remain accessible to all."""
+    admin_user, basic_user = users
+
+    with get_session_with_current_tenant() as db_session:
+        public_unrestricted = _create_llm_provider(
+            db_session,
+            name="public-unrestricted",
+            default_model_name="gpt-4o",
+            is_public=True,
+            is_default=True,
+        )
+
+        any_persona = _create_persona(
+            db_session,
+            name="any-persona",
+            provider_name=public_unrestricted.name,
+        )
+
+        admin_model = db_session.get(User, admin_user.id)
+        basic_model = db_session.get(User, basic_user.id)
+        assert admin_model is not None
+        assert basic_model is not None
+
+        admin_group_ids = fetch_user_group_ids(db_session, admin_model)
+        basic_group_ids = fetch_user_group_ids(db_session, basic_model)
+
+        # Any user, any persona — all allowed
+        assert can_user_access_llm_provider(
+            public_unrestricted, admin_group_ids, any_persona
+        )
+        assert can_user_access_llm_provider(
+            public_unrestricted, basic_group_ids, any_persona
+        )
+        assert can_user_access_llm_provider(
+            public_unrestricted, admin_group_ids, persona=None
+        )
+
+
 def test_get_llm_for_persona_falls_back_when_access_denied(
     users: tuple[DATestUser, DATestUser],
 ) -> None:

backend/tests/integration/tests/migrations/test_assistant_consolidation_migration.py

@@ -25,7 +25,7 @@ def test_cold_startup_default_assistant() -> None:
         result = db_session.execute(
             text(
                 """
-                SELECT id, name, builtin_persona, is_default_persona, deleted
+                SELECT id, name, builtin_persona, featured, deleted
                 FROM persona
                 WHERE builtin_persona = true
                 ORDER BY id
@@ -40,7 +40,7 @@ def test_cold_startup_default_assistant() -> None:
         assert default[0] == 0, "Default assistant should have ID 0"
         assert default[1] == "Assistant", "Should be named 'Assistant'"
         assert default[2] is True, "Should be builtin"
-        assert default[3] is True, "Should be default"
+        assert default[3] is True, "Should be featured"
         assert default[4] is False, "Should not be deleted"
 
         # Check tools are properly associated

backend/tests/integration/tests/no_vectordb/test_no_vectordb_chat.py

@@ -195,11 +195,7 @@ def _base_persona_body(**overrides: object) -> dict:
         "description": "test",
         "system_prompt": "test",
         "task_prompt": "",
-        "num_chunks": 5,
         "is_public": True,
-        "recency_bias": "auto",
-        "llm_filter_extraction": False,
-        "llm_relevance_filter": False,
         "datetime_aware": False,
         "document_set_ids": [],
         "tool_ids": [],

backend/tests/integration/tests/no_vectordb/test_no_vectordb_file_lifecycle.py

@@ -0,0 +1,160 @@
+"""Integration test for the full user-file lifecycle in no-vector-DB mode.
+
+Covers: upload → COMPLETED → unlink from project → delete → gone.
+
+The entire lifecycle is handled by FastAPI BackgroundTasks (no Celery workers
+needed).  The conftest-level ``pytestmark`` ensures these tests are skipped
+when the server is running with vector DB enabled.
+"""
+
+import time
+from uuid import UUID
+
+import requests
+
+from onyx.db.enums import UserFileStatus
+from tests.integration.common_utils.constants import API_SERVER_URL
+from tests.integration.common_utils.managers.project import ProjectManager
+from tests.integration.common_utils.test_models import DATestLLMProvider
+from tests.integration.common_utils.test_models import DATestUser
+
+POLL_INTERVAL_SECONDS = 1
+POLL_TIMEOUT_SECONDS = 30
+
+
+def _poll_file_status(
+    file_id: UUID,
+    user: DATestUser,
+    target_status: UserFileStatus,
+    timeout: int = POLL_TIMEOUT_SECONDS,
+) -> None:
+    """Poll GET /user/projects/file/{file_id} until the file reaches *target_status*."""
+    deadline = time.time() + timeout
+    while time.time() < deadline:
+        resp = requests.get(
+            f"{API_SERVER_URL}/user/projects/file/{file_id}",
+            headers=user.headers,
+        )
+        if resp.ok:
+            status = resp.json().get("status")
+            if status == target_status.value:
+                return
+        time.sleep(POLL_INTERVAL_SECONDS)
+    raise TimeoutError(
+        f"File {file_id} did not reach {target_status.value} within {timeout}s"
+    )
+
+
+def _file_is_gone(file_id: UUID, user: DATestUser, timeout: int = 15) -> None:
+    """Poll until GET /user/projects/file/{file_id} returns 404."""
+    deadline = time.time() + timeout
+    while time.time() < deadline:
+        resp = requests.get(
+            f"{API_SERVER_URL}/user/projects/file/{file_id}",
+            headers=user.headers,
+        )
+        if resp.status_code == 404:
+            return
+        time.sleep(POLL_INTERVAL_SECONDS)
+    raise TimeoutError(
+        f"File {file_id} still accessible after {timeout}s (expected 404)"
+    )
+
+
+def test_file_upload_process_delete_lifecycle(
+    reset: None,  # noqa: ARG001
+    admin_user: DATestUser,
+    llm_provider: DATestLLMProvider,  # noqa: ARG001
+) -> None:
+    """Full lifecycle: upload → COMPLETED → unlink → delete → 404.
+
+    Validates that the API server handles all background processing
+    (via FastAPI BackgroundTasks) without any Celery workers running.
+    """
+    project = ProjectManager.create(
+        name="lifecycle-test", user_performing_action=admin_user
+    )
+
+    file_content = b"Integration test file content for lifecycle verification."
+    upload_result = ProjectManager.upload_files(
+        project_id=project.id,
+        files=[("lifecycle.txt", file_content)],
+        user_performing_action=admin_user,
+    )
+    assert upload_result.user_files, "Expected at least one file in upload response"
+
+    user_file = upload_result.user_files[0]
+    file_id = user_file.id
+
+    _poll_file_status(file_id, admin_user, UserFileStatus.COMPLETED)
+
+    project_files = ProjectManager.get_project_files(project.id, admin_user)
+    assert any(
+        f.id == file_id for f in project_files
+    ), "File should be listed in project files after processing"
+
+    # Unlink the file from the project so the delete endpoint will proceed
+    unlink_resp = requests.delete(
+        f"{API_SERVER_URL}/user/projects/{project.id}/files/{file_id}",
+        headers=admin_user.headers,
+    )
+    assert (
+        unlink_resp.status_code == 204
+    ), f"Expected 204 on unlink, got {unlink_resp.status_code}: {unlink_resp.text}"
+
+    delete_resp = requests.delete(
+        f"{API_SERVER_URL}/user/projects/file/{file_id}",
+        headers=admin_user.headers,
+    )
+    assert (
+        delete_resp.ok
+    ), f"Delete request failed: {delete_resp.status_code} {delete_resp.text}"
+    body = delete_resp.json()
+    assert (
+        body["has_associations"] is False
+    ), f"File still has associations after unlink: {body}"
+
+    _file_is_gone(file_id, admin_user)
+
+    project_files_after = ProjectManager.get_project_files(project.id, admin_user)
+    assert not any(
+        f.id == file_id for f in project_files_after
+    ), "Deleted file should not appear in project files"
+
+
+def test_delete_blocked_while_associated(
+    reset: None,  # noqa: ARG001
+    admin_user: DATestUser,
+    llm_provider: DATestLLMProvider,  # noqa: ARG001
+) -> None:
+    """Deleting a file that still belongs to a project should return
+    has_associations=True without actually deleting the file."""
+    project = ProjectManager.create(
+        name="assoc-test", user_performing_action=admin_user
+    )
+
+    upload_result = ProjectManager.upload_files(
+        project_id=project.id,
+        files=[("assoc.txt", b"associated file content")],
+        user_performing_action=admin_user,
+    )
+    file_id = upload_result.user_files[0].id
+
+    _poll_file_status(file_id, admin_user, UserFileStatus.COMPLETED)
+
+    # Attempt to delete while still linked
+    delete_resp = requests.delete(
+        f"{API_SERVER_URL}/user/projects/file/{file_id}",
+        headers=admin_user.headers,
+    )
+    assert delete_resp.ok
+    body = delete_resp.json()
+    assert body["has_associations"] is True, "Should report existing associations"
+    assert project.name in body["project_names"]
+
+    # File should still be accessible
+    get_resp = requests.get(
+        f"{API_SERVER_URL}/user/projects/file/{file_id}",
+        headers=admin_user.headers,
+    )
+    assert get_resp.status_code == 200, "File should still exist after blocked delete"

backend/tests/integration/tests/personas/test_persona_creation.py

@@ -40,7 +40,6 @@ def test_persona_create_update_share_delete(
         expected_persona,
         name=f"updated-{expected_persona.name}",
         description=f"updated-{expected_persona.description}",
-        num_chunks=expected_persona.num_chunks + 1,
         is_public=False,
         user_performing_action=admin_user,
     )

backend/tests/integration/tests/personas/test_persona_label_updates.py

@@ -31,11 +31,7 @@ def test_update_persona_with_null_label_ids_preserves_labels(
         task_prompt=persona.task_prompt or "",
         datetime_aware=persona.datetime_aware,
         document_set_ids=persona.document_set_ids,
-        num_chunks=persona.num_chunks,
         is_public=persona.is_public,
-        recency_bias=persona.recency_bias,
-        llm_filter_extraction=persona.llm_filter_extraction,
-        llm_relevance_filter=persona.llm_relevance_filter,
         llm_model_provider_override=persona.llm_model_provider_override,
         llm_model_version_override=persona.llm_model_version_override,
         tool_ids=persona.tool_ids,

backend/tests/integration/tests/personas/test_unified_assistant.py

@@ -31,9 +31,8 @@ def test_unified_assistant(reset: None, admin_user: DATestUser) -> None:  # noqa
         "search, web browsing, and image generation"
         in unified_assistant.description.lower()
     )
-    assert unified_assistant.is_default_persona is True
+    assert unified_assistant.featured is True
     assert unified_assistant.is_visible is True
-    assert unified_assistant.num_chunks == 25
 
     # Verify tools
     tools = unified_assistant.tools

backend/tests/integration/tests/scim/test_scim_groups.py

@@ -0,0 +1,552 @@
+"""Integration tests for SCIM group provisioning endpoints.
+
+Covers the full group lifecycle as driven by an IdP (Okta / Azure AD):
+1. Create a group via POST /Groups
+2. Retrieve a group via GET /Groups/{id}
+3. List, filter, and paginate groups via GET /Groups
+4. Replace a group via PUT /Groups/{id}
+5. Patch a group (add/remove members, rename) via PATCH /Groups/{id}
+6. Delete a group via DELETE /Groups/{id}
+7. Error cases: duplicate name, not-found, invalid member IDs
+
+All tests are parameterized across IdP request styles (Okta sends lowercase
+PATCH ops; Entra sends capitalized ops like ``"Replace"``). The server
+normalizes both — these tests verify that.
+
+Auth tests live in test_scim_tokens.py.
+User lifecycle tests live in test_scim_users.py.
+"""
+
+import pytest
+import requests
+
+from onyx.auth.schemas import UserRole
+from tests.integration.common_utils.managers.scim_client import ScimClient
+from tests.integration.common_utils.managers.scim_token import ScimTokenManager
+
+
+SCIM_GROUP_SCHEMA = "urn:ietf:params:scim:schemas:core:2.0:Group"
+SCIM_USER_SCHEMA = "urn:ietf:params:scim:schemas:core:2.0:User"
+SCIM_PATCH_SCHEMA = "urn:ietf:params:scim:api:messages:2.0:PatchOp"
+
+
+@pytest.fixture(scope="module", params=["okta", "entra"])
+def idp_style(request: pytest.FixtureRequest) -> str:
+    """Parameterized IdP style — runs every test with both Okta and Entra request formats."""
+    return request.param
+
+
+@pytest.fixture(scope="module")
+def scim_token(idp_style: str) -> str:
+    """Create a single SCIM token shared across all tests in this module.
+
+    Creating a new token revokes the previous one, so we create exactly once
+    per IdP-style run and reuse. Uses UserManager directly to avoid
+    fixture-scope conflicts with the function-scoped admin_user fixture.
+    """
+    from tests.integration.common_utils.constants import ADMIN_USER_NAME
+    from tests.integration.common_utils.constants import GENERAL_HEADERS
+    from tests.integration.common_utils.managers.user import build_email
+    from tests.integration.common_utils.managers.user import DEFAULT_PASSWORD
+    from tests.integration.common_utils.managers.user import UserManager
+    from tests.integration.common_utils.test_models import DATestUser
+
+    try:
+        admin = UserManager.create(name=ADMIN_USER_NAME)
+    except Exception:
+        admin = UserManager.login_as_user(
+            DATestUser(
+                id="",
+                email=build_email(ADMIN_USER_NAME),
+                password=DEFAULT_PASSWORD,
+                headers=GENERAL_HEADERS,
+                role=UserRole.ADMIN,
+                is_active=True,
+            )
+        )
+
+    token = ScimTokenManager.create(
+        name=f"scim-group-tests-{idp_style}",
+        user_performing_action=admin,
+    ).raw_token
+    assert token is not None
+    return token
+
+
+def _make_group_resource(
+    display_name: str,
+    external_id: str | None = None,
+    members: list[dict] | None = None,
+) -> dict:
+    """Build a minimal SCIM GroupResource payload."""
+    resource: dict = {
+        "schemas": [SCIM_GROUP_SCHEMA],
+        "displayName": display_name,
+    }
+    if external_id is not None:
+        resource["externalId"] = external_id
+    if members is not None:
+        resource["members"] = members
+    return resource
+
+
+def _make_user_resource(email: str, external_id: str) -> dict:
+    """Build a minimal SCIM UserResource payload for member creation."""
+    return {
+        "schemas": [SCIM_USER_SCHEMA],
+        "userName": email,
+        "externalId": external_id,
+        "name": {"givenName": "Test", "familyName": "User"},
+        "active": True,
+    }
+
+
+def _make_patch_request(operations: list[dict], idp_style: str = "okta") -> dict:
+    """Build a SCIM PatchOp payload, applying IdP-specific operation casing.
+
+    Entra sends capitalized operations (e.g. ``"Replace"`` instead of
+    ``"replace"``). The server's ``normalize_operation`` validator lowercases
+    them — these tests verify that both casings are accepted.
+    """
+    cased_operations = []
+    for operation in operations:
+        cased = dict(operation)
+        if idp_style == "entra":
+            cased["op"] = operation["op"].capitalize()
+        cased_operations.append(cased)
+    return {
+        "schemas": [SCIM_PATCH_SCHEMA],
+        "Operations": cased_operations,
+    }
+
+
+def _create_scim_user(token: str, email: str, external_id: str) -> requests.Response:
+    return ScimClient.post(
+        "/Users", token, json=_make_user_resource(email, external_id)
+    )
+
+
+def _create_scim_group(
+    token: str,
+    display_name: str,
+    external_id: str | None = None,
+    members: list[dict] | None = None,
+) -> requests.Response:
+    return ScimClient.post(
+        "/Groups",
+        token,
+        json=_make_group_resource(display_name, external_id, members),
+    )
+
+
+# ------------------------------------------------------------------
+# Lifecycle: create → get → list → replace → patch → delete
+# ------------------------------------------------------------------
+
+
+def test_create_group(scim_token: str, idp_style: str) -> None:
+    """POST /Groups creates a group and returns 201."""
+    name = f"Engineering {idp_style}"
+    resp = _create_scim_group(scim_token, name, external_id=f"ext-eng-{idp_style}")
+    assert resp.status_code == 201
+
+    body = resp.json()
+    assert body["displayName"] == name
+    assert body["externalId"] == f"ext-eng-{idp_style}"
+    assert body["id"]  # integer ID assigned by server
+    assert body["meta"]["resourceType"] == "Group"
+
+
+def test_create_group_with_members(scim_token: str, idp_style: str) -> None:
+    """POST /Groups with members populates the member list."""
+    user = _create_scim_user(
+        scim_token, f"grp_member1_{idp_style}@example.com", f"ext-gm-{idp_style}"
+    ).json()
+
+    resp = _create_scim_group(
+        scim_token,
+        f"Backend Team {idp_style}",
+        external_id=f"ext-backend-{idp_style}",
+        members=[{"value": user["id"]}],
+    )
+    assert resp.status_code == 201
+
+    body = resp.json()
+    member_ids = [m["value"] for m in body["members"]]
+    assert user["id"] in member_ids
+
+
+def test_get_group(scim_token: str, idp_style: str) -> None:
+    """GET /Groups/{id} returns the group resource including members."""
+    user = _create_scim_user(
+        scim_token, f"grp_get_m_{idp_style}@example.com", f"ext-ggm-{idp_style}"
+    ).json()
+    created = _create_scim_group(
+        scim_token,
+        f"Frontend Team {idp_style}",
+        external_id=f"ext-fe-{idp_style}",
+        members=[{"value": user["id"]}],
+    ).json()
+
+    resp = ScimClient.get(f"/Groups/{created['id']}", scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["id"] == created["id"]
+    assert body["displayName"] == f"Frontend Team {idp_style}"
+    assert body["externalId"] == f"ext-fe-{idp_style}"
+    member_ids = [m["value"] for m in body["members"]]
+    assert user["id"] in member_ids
+
+
+def test_list_groups(scim_token: str, idp_style: str) -> None:
+    """GET /Groups returns a ListResponse containing provisioned groups."""
+    name = f"DevOps Team {idp_style}"
+    _create_scim_group(scim_token, name, external_id=f"ext-devops-{idp_style}")
+
+    resp = ScimClient.get("/Groups", scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["totalResults"] >= 1
+    names = [r["displayName"] for r in body["Resources"]]
+    assert name in names
+
+
+def test_list_groups_pagination(scim_token: str, idp_style: str) -> None:
+    """GET /Groups with startIndex and count returns correct pagination."""
+    _create_scim_group(
+        scim_token, f"Page Group A {idp_style}", external_id=f"ext-page-a-{idp_style}"
+    )
+    _create_scim_group(
+        scim_token, f"Page Group B {idp_style}", external_id=f"ext-page-b-{idp_style}"
+    )
+
+    resp = ScimClient.get("/Groups?startIndex=1&count=1", scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["startIndex"] == 1
+    assert body["itemsPerPage"] == 1
+    assert body["totalResults"] >= 2
+    assert len(body["Resources"]) == 1
+
+
+def test_filter_groups_by_display_name(scim_token: str, idp_style: str) -> None:
+    """GET /Groups?filter=displayName eq '...' returns only matching groups."""
+    name = f"Unique QA Team {idp_style}"
+    _create_scim_group(scim_token, name, external_id=f"ext-qa-filter-{idp_style}")
+
+    resp = ScimClient.get(f'/Groups?filter=displayName eq "{name}"', scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["totalResults"] == 1
+    assert body["Resources"][0]["displayName"] == name
+
+
+def test_filter_groups_by_external_id(scim_token: str, idp_style: str) -> None:
+    """GET /Groups?filter=externalId eq '...' returns the matching group."""
+    ext_id = f"ext-unique-group-id-{idp_style}"
+    _create_scim_group(
+        scim_token, f"ExtId Filter Group {idp_style}", external_id=ext_id
+    )
+
+    resp = ScimClient.get(f'/Groups?filter=externalId eq "{ext_id}"', scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["totalResults"] == 1
+    assert body["Resources"][0]["externalId"] == ext_id
+
+
+def test_replace_group(scim_token: str, idp_style: str) -> None:
+    """PUT /Groups/{id} replaces the group resource."""
+    created = _create_scim_group(
+        scim_token,
+        f"Original Name {idp_style}",
+        external_id=f"ext-replace-g-{idp_style}",
+    ).json()
+
+    user = _create_scim_user(
+        scim_token, f"grp_replace_m_{idp_style}@example.com", f"ext-grm-{idp_style}"
+    ).json()
+
+    updated_resource = _make_group_resource(
+        display_name=f"Renamed Group {idp_style}",
+        external_id=f"ext-replace-g-{idp_style}",
+        members=[{"value": user["id"]}],
+    )
+    resp = ScimClient.put(f"/Groups/{created['id']}", scim_token, json=updated_resource)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["displayName"] == f"Renamed Group {idp_style}"
+    member_ids = [m["value"] for m in body["members"]]
+    assert user["id"] in member_ids
+
+
+def test_replace_group_clears_members(scim_token: str, idp_style: str) -> None:
+    """PUT /Groups/{id} with empty members removes all memberships."""
+    user = _create_scim_user(
+        scim_token, f"grp_clear_m_{idp_style}@example.com", f"ext-gcm-{idp_style}"
+    ).json()
+    created = _create_scim_group(
+        scim_token,
+        f"Clear Members Group {idp_style}",
+        external_id=f"ext-clear-g-{idp_style}",
+        members=[{"value": user["id"]}],
+    ).json()
+
+    assert len(created["members"]) == 1
+
+    resp = ScimClient.put(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_group_resource(
+            f"Clear Members Group {idp_style}", f"ext-clear-g-{idp_style}", members=[]
+        ),
+    )
+    assert resp.status_code == 200
+    assert resp.json()["members"] == []
+
+
+def test_patch_add_member(scim_token: str, idp_style: str) -> None:
+    """PATCH /Groups/{id} with op=add adds a member."""
+    created = _create_scim_group(
+        scim_token,
+        f"Patch Add Group {idp_style}",
+        external_id=f"ext-patch-add-{idp_style}",
+    ).json()
+    user = _create_scim_user(
+        scim_token, f"grp_patch_add_{idp_style}@example.com", f"ext-gpa-{idp_style}"
+    ).json()
+
+    resp = ScimClient.patch(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "add", "path": "members", "value": [{"value": user["id"]}]}],
+            idp_style,
+        ),
+    )
+    assert resp.status_code == 200
+
+    member_ids = [m["value"] for m in resp.json()["members"]]
+    assert user["id"] in member_ids
+
+
+def test_patch_remove_member(scim_token: str, idp_style: str) -> None:
+    """PATCH /Groups/{id} with op=remove removes a specific member."""
+    user = _create_scim_user(
+        scim_token, f"grp_patch_rm_{idp_style}@example.com", f"ext-gpr-{idp_style}"
+    ).json()
+    created = _create_scim_group(
+        scim_token,
+        f"Patch Remove Group {idp_style}",
+        external_id=f"ext-patch-rm-{idp_style}",
+        members=[{"value": user["id"]}],
+    ).json()
+    assert len(created["members"]) == 1
+
+    resp = ScimClient.patch(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [
+                {
+                    "op": "remove",
+                    "path": f'members[value eq "{user["id"]}"]',
+                }
+            ],
+            idp_style,
+        ),
+    )
+    assert resp.status_code == 200
+    assert resp.json()["members"] == []
+
+
+def test_patch_replace_members(scim_token: str, idp_style: str) -> None:
+    """PATCH /Groups/{id} with op=replace on members swaps the entire list."""
+    user_a = _create_scim_user(
+        scim_token, f"grp_repl_a_{idp_style}@example.com", f"ext-gra-{idp_style}"
+    ).json()
+    user_b = _create_scim_user(
+        scim_token, f"grp_repl_b_{idp_style}@example.com", f"ext-grb-{idp_style}"
+    ).json()
+    created = _create_scim_group(
+        scim_token,
+        f"Patch Replace Group {idp_style}",
+        external_id=f"ext-patch-repl-{idp_style}",
+        members=[{"value": user_a["id"]}],
+    ).json()
+
+    # Replace member list: swap A for B
+    resp = ScimClient.patch(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [
+                {
+                    "op": "replace",
+                    "path": "members",
+                    "value": [{"value": user_b["id"]}],
+                }
+            ],
+            idp_style,
+        ),
+    )
+    assert resp.status_code == 200
+
+    member_ids = [m["value"] for m in resp.json()["members"]]
+    assert user_b["id"] in member_ids
+    assert user_a["id"] not in member_ids
+
+
+def test_patch_rename_group(scim_token: str, idp_style: str) -> None:
+    """PATCH /Groups/{id} with op=replace on displayName renames the group."""
+    created = _create_scim_group(
+        scim_token,
+        f"Old Group Name {idp_style}",
+        external_id=f"ext-rename-g-{idp_style}",
+    ).json()
+
+    new_name = f"New Group Name {idp_style}"
+    resp = ScimClient.patch(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "replace", "path": "displayName", "value": new_name}],
+            idp_style,
+        ),
+    )
+    assert resp.status_code == 200
+    assert resp.json()["displayName"] == new_name
+
+    # Confirm via GET
+    get_resp = ScimClient.get(f"/Groups/{created['id']}", scim_token)
+    assert get_resp.json()["displayName"] == new_name
+
+
+def test_delete_group(scim_token: str, idp_style: str) -> None:
+    """DELETE /Groups/{id} removes the group."""
+    created = _create_scim_group(
+        scim_token,
+        f"Delete Me Group {idp_style}",
+        external_id=f"ext-del-g-{idp_style}",
+    ).json()
+
+    resp = ScimClient.delete(f"/Groups/{created['id']}", scim_token)
+    assert resp.status_code == 204
+
+    # Second DELETE returns 404 (group hard-deleted)
+    resp2 = ScimClient.delete(f"/Groups/{created['id']}", scim_token)
+    assert resp2.status_code == 404
+
+
+def test_delete_group_preserves_members(scim_token: str, idp_style: str) -> None:
+    """DELETE /Groups/{id} removes memberships but does not deactivate users."""
+    user = _create_scim_user(
+        scim_token, f"grp_del_member_{idp_style}@example.com", f"ext-gdm-{idp_style}"
+    ).json()
+    created = _create_scim_group(
+        scim_token,
+        f"Delete With Members {idp_style}",
+        external_id=f"ext-del-wm-{idp_style}",
+        members=[{"value": user["id"]}],
+    ).json()
+
+    resp = ScimClient.delete(f"/Groups/{created['id']}", scim_token)
+    assert resp.status_code == 204
+
+    # User should still be active and retrievable
+    user_resp = ScimClient.get(f"/Users/{user['id']}", scim_token)
+    assert user_resp.status_code == 200
+    assert user_resp.json()["active"] is True
+
+
+# ------------------------------------------------------------------
+# Error cases
+# ------------------------------------------------------------------
+
+
+def test_create_group_duplicate_name(scim_token: str, idp_style: str) -> None:
+    """POST /Groups with an already-taken displayName returns 409."""
+    name = f"Dup Name Group {idp_style}"
+    resp1 = _create_scim_group(scim_token, name, external_id=f"ext-dup-g1-{idp_style}")
+    assert resp1.status_code == 201
+
+    resp2 = _create_scim_group(scim_token, name, external_id=f"ext-dup-g2-{idp_style}")
+    assert resp2.status_code == 409
+
+
+def test_get_nonexistent_group(scim_token: str) -> None:
+    """GET /Groups/{bad-id} returns 404."""
+    resp = ScimClient.get("/Groups/999999999", scim_token)
+    assert resp.status_code == 404
+
+
+def test_create_group_with_invalid_member(scim_token: str, idp_style: str) -> None:
+    """POST /Groups with a non-existent member UUID returns 400."""
+    resp = _create_scim_group(
+        scim_token,
+        f"Bad Member Group {idp_style}",
+        external_id=f"ext-bad-m-{idp_style}",
+        members=[{"value": "00000000-0000-0000-0000-000000000000"}],
+    )
+    assert resp.status_code == 400
+    assert "not found" in resp.json()["detail"].lower()
+
+
+def test_patch_add_nonexistent_member(scim_token: str, idp_style: str) -> None:
+    """PATCH /Groups/{id} adding a non-existent member returns 400."""
+    created = _create_scim_group(
+        scim_token,
+        f"Patch Bad Member Group {idp_style}",
+        external_id=f"ext-pbm-{idp_style}",
+    ).json()
+
+    resp = ScimClient.patch(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [
+                {
+                    "op": "add",
+                    "path": "members",
+                    "value": [{"value": "00000000-0000-0000-0000-000000000000"}],
+                }
+            ],
+            idp_style,
+        ),
+    )
+    assert resp.status_code == 400
+    assert "not found" in resp.json()["detail"].lower()
+
+
+def test_patch_add_duplicate_member_is_idempotent(
+    scim_token: str, idp_style: str
+) -> None:
+    """PATCH /Groups/{id} adding an already-present member succeeds silently."""
+    user = _create_scim_user(
+        scim_token, f"grp_dup_add_{idp_style}@example.com", f"ext-gda-{idp_style}"
+    ).json()
+    created = _create_scim_group(
+        scim_token,
+        f"Idempotent Add Group {idp_style}",
+        external_id=f"ext-idem-g-{idp_style}",
+        members=[{"value": user["id"]}],
+    ).json()
+    assert len(created["members"]) == 1
+
+    # Add same member again
+    resp = ScimClient.patch(
+        f"/Groups/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "add", "path": "members", "value": [{"value": user["id"]}]}],
+            idp_style,
+        ),
+    )
+    assert resp.status_code == 200
+    assert len(resp.json()["members"]) == 1  # still just one member

backend/tests/integration/tests/scim/test_scim_tokens.py

@@ -15,6 +15,7 @@ import time
 import requests
 
 from tests.integration.common_utils.constants import API_SERVER_URL
+from tests.integration.common_utils.managers.scim_client import ScimClient
 from tests.integration.common_utils.managers.scim_token import ScimTokenManager
 from tests.integration.common_utils.managers.user import UserManager
 from tests.integration.common_utils.test_models import DATestUser
@@ -39,7 +40,7 @@ def test_scim_token_lifecycle(admin_user: DATestUser) -> None:
     assert active == token.model_copy(update={"raw_token": None})
 
     # Token works for SCIM requests
-    response = ScimTokenManager.scim_get("/Users", token.raw_token)
+    response = ScimClient.get("/Users", token.raw_token)
     assert response.status_code == 200
     body = response.json()
     assert "Resources" in body
@@ -54,7 +55,7 @@ def test_scim_token_rotation_revokes_previous(admin_user: DATestUser) -> None:
     )
     assert first.raw_token is not None
 
-    response = ScimTokenManager.scim_get("/Users", first.raw_token)
+    response = ScimClient.get("/Users", first.raw_token)
     assert response.status_code == 200
 
     # Create second token — should revoke first
@@ -69,25 +70,22 @@ def test_scim_token_rotation_revokes_previous(admin_user: DATestUser) -> None:
     assert active == second.model_copy(update={"raw_token": None})
 
     # First token rejected, second works
-    assert ScimTokenManager.scim_get("/Users", first.raw_token).status_code == 401
-    assert ScimTokenManager.scim_get("/Users", second.raw_token).status_code == 200
+    assert ScimClient.get("/Users", first.raw_token).status_code == 401
+    assert ScimClient.get("/Users", second.raw_token).status_code == 200
 
 
 def test_scim_request_without_token_rejected(
     admin_user: DATestUser,  # noqa: ARG001
 ) -> None:
     """SCIM endpoints reject requests with no Authorization header."""
-    assert ScimTokenManager.scim_get_no_auth("/Users").status_code == 401
+    assert ScimClient.get_no_auth("/Users").status_code == 401
 
 
 def test_scim_request_with_bad_token_rejected(
     admin_user: DATestUser,  # noqa: ARG001
 ) -> None:
     """SCIM endpoints reject requests with an invalid token."""
-    assert (
-        ScimTokenManager.scim_get("/Users", "onyx_scim_bogus_token_value").status_code
-        == 401
-    )
+    assert ScimClient.get("/Users", "onyx_scim_bogus_token_value").status_code == 401
 
 
 def test_non_admin_cannot_create_token(
@@ -139,7 +137,7 @@ def test_service_discovery_no_auth_required(
 ) -> None:
     """Service discovery endpoints work without any authentication."""
     for path in ["/ServiceProviderConfig", "/ResourceTypes", "/Schemas"]:
-        response = ScimTokenManager.scim_get_no_auth(path)
+        response = ScimClient.get_no_auth(path)
         assert response.status_code == 200, f"{path} returned {response.status_code}"
 
 
@@ -158,7 +156,7 @@ def test_last_used_at_updated_after_scim_request(
     assert active.last_used_at is None
 
     # Make a SCIM request, then verify last_used_at is set
-    assert ScimTokenManager.scim_get("/Users", token.raw_token).status_code == 200
+    assert ScimClient.get("/Users", token.raw_token).status_code == 200
     time.sleep(0.5)
 
     active_after = ScimTokenManager.get_active(user_performing_action=admin_user)

backend/tests/integration/tests/scim/test_scim_users.py

@@ -0,0 +1,520 @@
+"""Integration tests for SCIM user provisioning endpoints.
+
+Covers the full user lifecycle as driven by an IdP (Okta / Azure AD):
+1. Create a user via POST /Users
+2. Retrieve a user via GET /Users/{id}
+3. List, filter, and paginate users via GET /Users
+4. Replace a user via PUT /Users/{id}
+5. Patch a user (deactivate/reactivate) via PATCH /Users/{id}
+6. Delete a user via DELETE /Users/{id}
+7. Error cases: missing externalId, duplicate email, not-found, seat limit
+
+All tests are parameterized across IdP request styles:
+- **Okta**: lowercase PATCH ops, minimal payloads (core schema only).
+- **Entra**: capitalized ops (``"Replace"``), enterprise extension data
+  (department, manager), and structured email arrays.
+
+The server normalizes both — these tests verify that all IdP-specific fields
+are accepted and round-tripped correctly.
+
+Auth, revoked-token, and service-discovery tests live in test_scim_tokens.py.
+"""
+
+from datetime import datetime
+from datetime import timedelta
+from datetime import timezone
+
+import pytest
+import redis
+import requests
+
+from ee.onyx.server.license.models import LicenseMetadata
+from ee.onyx.server.license.models import LicenseSource
+from ee.onyx.server.license.models import PlanType
+from onyx.auth.schemas import UserRole
+from onyx.configs.app_configs import REDIS_DB_NUMBER
+from onyx.configs.app_configs import REDIS_HOST
+from onyx.configs.app_configs import REDIS_PORT
+from onyx.server.settings.models import ApplicationStatus
+from tests.integration.common_utils.managers.scim_client import ScimClient
+from tests.integration.common_utils.managers.scim_token import ScimTokenManager
+
+
+SCIM_USER_SCHEMA = "urn:ietf:params:scim:schemas:core:2.0:User"
+SCIM_ENTERPRISE_USER_SCHEMA = (
+    "urn:ietf:params:scim:schemas:extension:enterprise:2.0:User"
+)
+SCIM_PATCH_SCHEMA = "urn:ietf:params:scim:api:messages:2.0:PatchOp"
+
+_LICENSE_REDIS_KEY = "public:license:metadata"
+
+
+@pytest.fixture(scope="module", params=["okta", "entra"])
+def idp_style(request: pytest.FixtureRequest) -> str:
+    """Parameterized IdP style — runs every test with both Okta and Entra request formats."""
+    return request.param
+
+
+@pytest.fixture(scope="module")
+def scim_token(idp_style: str) -> str:
+    """Create a single SCIM token shared across all tests in this module.
+
+    Creating a new token revokes the previous one, so we create exactly once
+    per IdP-style run and reuse. Uses UserManager directly to avoid
+    fixture-scope conflicts with the function-scoped admin_user fixture.
+    """
+    from tests.integration.common_utils.constants import ADMIN_USER_NAME
+    from tests.integration.common_utils.constants import GENERAL_HEADERS
+    from tests.integration.common_utils.managers.user import build_email
+    from tests.integration.common_utils.managers.user import DEFAULT_PASSWORD
+    from tests.integration.common_utils.managers.user import UserManager
+    from tests.integration.common_utils.test_models import DATestUser
+
+    try:
+        admin = UserManager.create(name=ADMIN_USER_NAME)
+    except Exception:
+        admin = UserManager.login_as_user(
+            DATestUser(
+                id="",
+                email=build_email(ADMIN_USER_NAME),
+                password=DEFAULT_PASSWORD,
+                headers=GENERAL_HEADERS,
+                role=UserRole.ADMIN,
+                is_active=True,
+            )
+        )
+
+    token = ScimTokenManager.create(
+        name=f"scim-user-tests-{idp_style}",
+        user_performing_action=admin,
+    ).raw_token
+    assert token is not None
+    return token
+
+
+def _make_user_resource(
+    email: str,
+    external_id: str,
+    given_name: str = "Test",
+    family_name: str = "User",
+    active: bool = True,
+    idp_style: str = "okta",
+    department: str | None = None,
+    manager_id: str | None = None,
+) -> dict:
+    """Build a SCIM UserResource payload appropriate for the IdP style.
+
+    Entra sends richer payloads including enterprise extension data (department,
+    manager), structured email arrays, and the enterprise schema URN. Okta sends
+    minimal payloads with just core user fields.
+    """
+    resource: dict = {
+        "schemas": [SCIM_USER_SCHEMA],
+        "userName": email,
+        "externalId": external_id,
+        "name": {
+            "givenName": given_name,
+            "familyName": family_name,
+        },
+        "active": active,
+    }
+    if idp_style == "entra":
+        dept = department or "Engineering"
+        mgr = manager_id or "mgr-ext-001"
+        resource["schemas"].append(SCIM_ENTERPRISE_USER_SCHEMA)
+        resource[SCIM_ENTERPRISE_USER_SCHEMA] = {
+            "department": dept,
+            "manager": {"value": mgr},
+        }
+        resource["emails"] = [
+            {"value": email, "type": "work", "primary": True},
+        ]
+    return resource
+
+
+def _make_patch_request(operations: list[dict], idp_style: str = "okta") -> dict:
+    """Build a SCIM PatchOp payload, applying IdP-specific operation casing.
+
+    Entra sends capitalized operations (e.g. ``"Replace"`` instead of
+    ``"replace"``). The server's ``normalize_operation`` validator lowercases
+    them — these tests verify that both casings are accepted.
+    """
+    cased_operations = []
+    for operation in operations:
+        cased = dict(operation)
+        if idp_style == "entra":
+            cased["op"] = operation["op"].capitalize()
+        cased_operations.append(cased)
+    return {
+        "schemas": [SCIM_PATCH_SCHEMA],
+        "Operations": cased_operations,
+    }
+
+
+def _create_scim_user(
+    token: str,
+    email: str,
+    external_id: str,
+    idp_style: str = "okta",
+) -> requests.Response:
+    return ScimClient.post(
+        "/Users",
+        token,
+        json=_make_user_resource(email, external_id, idp_style=idp_style),
+    )
+
+
+def _assert_entra_extension(
+    body: dict,
+    expected_department: str = "Engineering",
+    expected_manager: str = "mgr-ext-001",
+) -> None:
+    """Assert that Entra enterprise extension fields round-tripped correctly."""
+    assert SCIM_ENTERPRISE_USER_SCHEMA in body["schemas"]
+    ext = body[SCIM_ENTERPRISE_USER_SCHEMA]
+    assert ext["department"] == expected_department
+    assert ext["manager"]["value"] == expected_manager
+
+
+def _assert_entra_emails(body: dict, expected_email: str) -> None:
+    """Assert that structured email metadata round-tripped correctly."""
+    emails = body["emails"]
+    assert len(emails) >= 1
+    work_email = next(e for e in emails if e.get("type") == "work")
+    assert work_email["value"] == expected_email
+    assert work_email["primary"] is True
+
+
+# ------------------------------------------------------------------
+# Lifecycle: create -> get -> list -> replace -> patch -> delete
+# ------------------------------------------------------------------
+
+
+def test_create_user(scim_token: str, idp_style: str) -> None:
+    """POST /Users creates a provisioned user and returns 201."""
+    email = f"scim_create_{idp_style}@example.com"
+    ext_id = f"ext-create-{idp_style}"
+    resp = _create_scim_user(scim_token, email, ext_id, idp_style)
+    assert resp.status_code == 201
+
+    body = resp.json()
+    assert body["userName"] == email
+    assert body["externalId"] == ext_id
+    assert body["active"] is True
+    assert body["id"]  # UUID assigned by server
+    assert body["meta"]["resourceType"] == "User"
+    assert body["name"]["givenName"] == "Test"
+    assert body["name"]["familyName"] == "User"
+
+    if idp_style == "entra":
+        _assert_entra_extension(body)
+        _assert_entra_emails(body, email)
+
+
+def test_get_user(scim_token: str, idp_style: str) -> None:
+    """GET /Users/{id} returns the user resource with all stored fields."""
+    email = f"scim_get_{idp_style}@example.com"
+    ext_id = f"ext-get-{idp_style}"
+    created = _create_scim_user(scim_token, email, ext_id, idp_style).json()
+
+    resp = ScimClient.get(f"/Users/{created['id']}", scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["id"] == created["id"]
+    assert body["userName"] == email
+    assert body["externalId"] == ext_id
+    assert body["name"]["givenName"] == "Test"
+    assert body["name"]["familyName"] == "User"
+
+    if idp_style == "entra":
+        _assert_entra_extension(body)
+        _assert_entra_emails(body, email)
+
+
+def test_list_users(scim_token: str, idp_style: str) -> None:
+    """GET /Users returns a ListResponse containing provisioned users."""
+    email = f"scim_list_{idp_style}@example.com"
+    _create_scim_user(scim_token, email, f"ext-list-{idp_style}", idp_style)
+
+    resp = ScimClient.get("/Users", scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["totalResults"] >= 1
+    emails = [r["userName"] for r in body["Resources"]]
+    assert email in emails
+
+
+def test_list_users_pagination(scim_token: str, idp_style: str) -> None:
+    """GET /Users with startIndex and count returns correct pagination."""
+    _create_scim_user(
+        scim_token,
+        f"scim_page1_{idp_style}@example.com",
+        f"ext-page-1-{idp_style}",
+        idp_style,
+    )
+    _create_scim_user(
+        scim_token,
+        f"scim_page2_{idp_style}@example.com",
+        f"ext-page-2-{idp_style}",
+        idp_style,
+    )
+
+    resp = ScimClient.get("/Users?startIndex=1&count=1", scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["startIndex"] == 1
+    assert body["itemsPerPage"] == 1
+    assert body["totalResults"] >= 2
+    assert len(body["Resources"]) == 1
+
+
+def test_filter_users_by_username(scim_token: str, idp_style: str) -> None:
+    """GET /Users?filter=userName eq '...' returns only matching users."""
+    email = f"scim_filter_{idp_style}@example.com"
+    _create_scim_user(scim_token, email, f"ext-filter-{idp_style}", idp_style)
+
+    resp = ScimClient.get(f'/Users?filter=userName eq "{email}"', scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["totalResults"] == 1
+    assert body["Resources"][0]["userName"] == email
+
+
+def test_replace_user(scim_token: str, idp_style: str) -> None:
+    """PUT /Users/{id} replaces the user resource including enterprise fields."""
+    email = f"scim_replace_{idp_style}@example.com"
+    ext_id = f"ext-replace-{idp_style}"
+    created = _create_scim_user(scim_token, email, ext_id, idp_style).json()
+
+    updated_resource = _make_user_resource(
+        email=email,
+        external_id=ext_id,
+        given_name="Updated",
+        family_name="Name",
+        idp_style=idp_style,
+        department="Product",
+    )
+    resp = ScimClient.put(f"/Users/{created['id']}", scim_token, json=updated_resource)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["name"]["givenName"] == "Updated"
+    assert body["name"]["familyName"] == "Name"
+
+    if idp_style == "entra":
+        _assert_entra_extension(body, expected_department="Product")
+        _assert_entra_emails(body, email)
+
+
+def test_patch_deactivate_user(scim_token: str, idp_style: str) -> None:
+    """PATCH /Users/{id} with active=false deactivates the user."""
+    created = _create_scim_user(
+        scim_token,
+        f"scim_deactivate_{idp_style}@example.com",
+        f"ext-deactivate-{idp_style}",
+        idp_style,
+    ).json()
+    assert created["active"] is True
+
+    resp = ScimClient.patch(
+        f"/Users/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "replace", "path": "active", "value": False}], idp_style
+        ),
+    )
+    assert resp.status_code == 200
+    assert resp.json()["active"] is False
+
+    # Confirm via GET
+    get_resp = ScimClient.get(f"/Users/{created['id']}", scim_token)
+    assert get_resp.json()["active"] is False
+
+
+def test_patch_reactivate_user(scim_token: str, idp_style: str) -> None:
+    """PATCH active=true reactivates a previously deactivated user."""
+    created = _create_scim_user(
+        scim_token,
+        f"scim_reactivate_{idp_style}@example.com",
+        f"ext-reactivate-{idp_style}",
+        idp_style,
+    ).json()
+
+    # Deactivate
+    deactivate_resp = ScimClient.patch(
+        f"/Users/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "replace", "path": "active", "value": False}], idp_style
+        ),
+    )
+    assert deactivate_resp.status_code == 200
+    assert deactivate_resp.json()["active"] is False
+
+    # Reactivate
+    resp = ScimClient.patch(
+        f"/Users/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "replace", "path": "active", "value": True}], idp_style
+        ),
+    )
+    assert resp.status_code == 200
+    assert resp.json()["active"] is True
+
+
+def test_delete_user(scim_token: str, idp_style: str) -> None:
+    """DELETE /Users/{id} deactivates and removes the SCIM mapping."""
+    created = _create_scim_user(
+        scim_token,
+        f"scim_delete_{idp_style}@example.com",
+        f"ext-delete-{idp_style}",
+        idp_style,
+    ).json()
+
+    resp = ScimClient.delete(f"/Users/{created['id']}", scim_token)
+    assert resp.status_code == 204
+
+    # Second DELETE returns 404 per RFC 7644 §3.6 (mapping removed)
+    resp2 = ScimClient.delete(f"/Users/{created['id']}", scim_token)
+    assert resp2.status_code == 404
+
+
+# ------------------------------------------------------------------
+# Error cases
+# ------------------------------------------------------------------
+
+
+def test_create_user_missing_external_id(scim_token: str, idp_style: str) -> None:
+    """POST /Users without externalId succeeds (RFC 7643: externalId is optional)."""
+    email = f"scim_no_extid_{idp_style}@example.com"
+    resp = ScimClient.post(
+        "/Users",
+        scim_token,
+        json={
+            "schemas": [SCIM_USER_SCHEMA],
+            "userName": email,
+            "active": True,
+        },
+    )
+    assert resp.status_code == 201
+    body = resp.json()
+    assert body["userName"] == email
+    assert body.get("externalId") is None
+
+
+def test_create_user_duplicate_email(scim_token: str, idp_style: str) -> None:
+    """POST /Users with an already-taken email returns 409."""
+    email = f"scim_dup_{idp_style}@example.com"
+    resp1 = _create_scim_user(scim_token, email, f"ext-dup-1-{idp_style}", idp_style)
+    assert resp1.status_code == 201
+
+    resp2 = _create_scim_user(scim_token, email, f"ext-dup-2-{idp_style}", idp_style)
+    assert resp2.status_code == 409
+
+
+def test_get_nonexistent_user(scim_token: str) -> None:
+    """GET /Users/{bad-id} returns 404."""
+    resp = ScimClient.get("/Users/00000000-0000-0000-0000-000000000000", scim_token)
+    assert resp.status_code == 404
+
+
+def test_filter_users_by_external_id(scim_token: str, idp_style: str) -> None:
+    """GET /Users?filter=externalId eq '...' returns the matching user."""
+    ext_id = f"ext-unique-filter-id-{idp_style}"
+    _create_scim_user(
+        scim_token, f"scim_extfilter_{idp_style}@example.com", ext_id, idp_style
+    )
+
+    resp = ScimClient.get(f'/Users?filter=externalId eq "{ext_id}"', scim_token)
+    assert resp.status_code == 200
+
+    body = resp.json()
+    assert body["totalResults"] == 1
+    assert body["Resources"][0]["externalId"] == ext_id
+
+
+# ------------------------------------------------------------------
+# Seat-limit enforcement
+# ------------------------------------------------------------------
+
+
+def _seed_license(r: redis.Redis, seats: int) -> None:
+    """Write a LicenseMetadata entry into Redis with the given seat cap."""
+    now = datetime.now(timezone.utc)
+    metadata = LicenseMetadata(
+        tenant_id="public",
+        organization_name="Test Org",
+        seats=seats,
+        used_seats=0,  # check_seat_availability recalculates from DB
+        plan_type=PlanType.ANNUAL,
+        issued_at=now,
+        expires_at=now + timedelta(days=365),
+        status=ApplicationStatus.ACTIVE,
+        source=LicenseSource.MANUAL_UPLOAD,
+    )
+    r.set(_LICENSE_REDIS_KEY, metadata.model_dump_json(), ex=300)
+
+
+def test_create_user_seat_limit(scim_token: str, idp_style: str) -> None:
+    """POST /Users returns 403 when the seat limit is reached."""
+    r = redis.Redis(host=REDIS_HOST, port=REDIS_PORT, db=REDIS_DB_NUMBER)
+
+    # admin_user already occupies 1 seat; cap at 1 -> full
+    _seed_license(r, seats=1)
+
+    try:
+        resp = _create_scim_user(
+            scim_token,
+            f"scim_blocked_{idp_style}@example.com",
+            f"ext-blocked-{idp_style}",
+            idp_style,
+        )
+        assert resp.status_code == 403
+        assert "seat" in resp.json()["detail"].lower()
+    finally:
+        r.delete(_LICENSE_REDIS_KEY)
+
+
+def test_reactivate_user_seat_limit(scim_token: str, idp_style: str) -> None:
+    """PATCH active=true returns 403 when the seat limit is reached."""
+    # Create and deactivate a user (before license is seeded)
+    created = _create_scim_user(
+        scim_token,
+        f"scim_reactivate_blocked_{idp_style}@example.com",
+        f"ext-reactivate-blocked-{idp_style}",
+        idp_style,
+    ).json()
+    assert created["active"] is True
+
+    deactivate_resp = ScimClient.patch(
+        f"/Users/{created['id']}",
+        scim_token,
+        json=_make_patch_request(
+            [{"op": "replace", "path": "active", "value": False}], idp_style
+        ),
+    )
+    assert deactivate_resp.status_code == 200
+    assert deactivate_resp.json()["active"] is False
+
+    r = redis.Redis(host=REDIS_HOST, port=REDIS_PORT, db=REDIS_DB_NUMBER)
+
+    # Seed license capped at current active users -> reactivation should fail
+    _seed_license(r, seats=1)
+
+    try:
+        resp = ScimClient.patch(
+            f"/Users/{created['id']}",
+            scim_token,
+            json=_make_patch_request(
+                [{"op": "replace", "path": "active", "value": True}], idp_style
+            ),
+        )
+        assert resp.status_code == 403
+        assert "seat" in resp.json()["detail"].lower()
+    finally:
+        r.delete(_LICENSE_REDIS_KEY)

backend/tests/integration/tests/users/test_slack_user_deactivation.py

@@ -0,0 +1,121 @@
+"""Integration tests for Slack user deactivation and reactivation via admin endpoints.
+
+Verifies that:
+- Slack users can be deactivated by admins
+- Deactivated Slack users can be reactivated by admins
+- Reactivation is blocked when the seat limit is reached
+"""
+
+from datetime import datetime
+from datetime import timedelta
+
+import redis
+import requests
+
+from ee.onyx.server.license.models import LicenseMetadata
+from ee.onyx.server.license.models import LicenseSource
+from ee.onyx.server.license.models import PlanType
+from onyx.auth.schemas import UserRole
+from onyx.configs.app_configs import REDIS_DB_NUMBER
+from onyx.configs.app_configs import REDIS_HOST
+from onyx.configs.app_configs import REDIS_PORT
+from onyx.server.settings.models import ApplicationStatus
+from tests.integration.common_utils.constants import API_SERVER_URL
+from tests.integration.common_utils.managers.user import UserManager
+from tests.integration.common_utils.test_models import DATestUser
+
+_LICENSE_REDIS_KEY = "public:license:metadata"
+
+
+def _seed_license(r: redis.Redis, seats: int) -> None:
+    now = datetime.utcnow()
+    metadata = LicenseMetadata(
+        tenant_id="public",
+        organization_name="Test Org",
+        seats=seats,
+        used_seats=0,
+        plan_type=PlanType.ANNUAL,
+        issued_at=now,
+        expires_at=now + timedelta(days=365),
+        status=ApplicationStatus.ACTIVE,
+        source=LicenseSource.MANUAL_UPLOAD,
+    )
+    r.set(_LICENSE_REDIS_KEY, metadata.model_dump_json(), ex=300)
+
+
+def _clear_license(r: redis.Redis) -> None:
+    r.delete(_LICENSE_REDIS_KEY)
+
+
+def _redis() -> redis.Redis:
+    return redis.Redis(host=REDIS_HOST, port=REDIS_PORT, db=REDIS_DB_NUMBER)
+
+
+def _get_user_is_active(email: str, admin_user: DATestUser) -> bool:
+    """Look up a user's is_active flag via the admin users list endpoint."""
+    result = UserManager.get_user_page(
+        user_performing_action=admin_user,
+        search_query=email,
+    )
+    matching = [u for u in result.items if u.email == email]
+    assert len(matching) == 1, f"Expected exactly 1 user with email {email}"
+    return matching[0].is_active
+
+
+def test_slack_user_deactivate_and_reactivate(reset: None) -> None:  # noqa: ARG001
+    """Admin can deactivate and then reactivate a Slack user."""
+    admin_user = UserManager.create(name="admin_user")
+
+    slack_user = UserManager.create(name="slack_test_user")
+    slack_user = UserManager.set_role(
+        user_to_set=slack_user,
+        target_role=UserRole.SLACK_USER,
+        user_performing_action=admin_user,
+        explicit_override=True,
+    )
+
+    # Deactivate the Slack user
+    UserManager.set_status(
+        slack_user, target_status=False, user_performing_action=admin_user
+    )
+    assert _get_user_is_active(slack_user.email, admin_user) is False
+
+    # Reactivate the Slack user
+    UserManager.set_status(
+        slack_user, target_status=True, user_performing_action=admin_user
+    )
+    assert _get_user_is_active(slack_user.email, admin_user) is True
+
+
+def test_slack_user_reactivation_blocked_by_seat_limit(
+    reset: None,  # noqa: ARG001
+) -> None:
+    """Reactivating a deactivated Slack user returns 402 when seats are full."""
+    r = _redis()
+
+    admin_user = UserManager.create(name="admin_user")
+
+    slack_user = UserManager.create(name="slack_test_user")
+    slack_user = UserManager.set_role(
+        user_to_set=slack_user,
+        target_role=UserRole.SLACK_USER,
+        user_performing_action=admin_user,
+        explicit_override=True,
+    )
+
+    UserManager.set_status(
+        slack_user, target_status=False, user_performing_action=admin_user
+    )
+
+    # License allows 1 seat — only admin counts
+    _seed_license(r, seats=1)
+
+    try:
+        response = requests.patch(
+            url=f"{API_SERVER_URL}/manage/admin/activate-user",
+            json={"user_email": slack_user.email},
+            headers=admin_user.headers,
+        )
+        assert response.status_code == 402
+    finally:
+        _clear_license(r)

backend/tests/unit/ee/onyx/db/test_license.py

@@ -1,11 +1,20 @@
 """Tests for license database CRUD operations."""
 
+from datetime import datetime
+from datetime import timedelta
+from datetime import timezone
 from unittest.mock import MagicMock
+from unittest.mock import patch
 
+from ee.onyx.db.license import check_seat_availability
 from ee.onyx.db.license import delete_license
 from ee.onyx.db.license import get_license
 from ee.onyx.db.license import upsert_license
+from ee.onyx.server.license.models import LicenseMetadata
+from ee.onyx.server.license.models import LicenseSource
+from ee.onyx.server.license.models import PlanType
 from onyx.db.models import License
+from onyx.server.settings.models import ApplicationStatus
 
 
 class TestGetLicense:
@@ -100,3 +109,108 @@ class TestDeleteLicense:
         assert result is False
         mock_session.delete.assert_not_called()
         mock_session.commit.assert_not_called()
+
+
+def _make_license_metadata(seats: int = 10) -> LicenseMetadata:
+    now = datetime.now(timezone.utc)
+    return LicenseMetadata(
+        tenant_id="public",
+        seats=seats,
+        used_seats=0,
+        plan_type=PlanType.ANNUAL,
+        issued_at=now,
+        expires_at=now + timedelta(days=365),
+        status=ApplicationStatus.ACTIVE,
+        source=LicenseSource.MANUAL_UPLOAD,
+    )
+
+
+class TestCheckSeatAvailabilitySelfHosted:
+    """Seat checks for self-hosted (MULTI_TENANT=False)."""
+
+    @patch("ee.onyx.db.license.get_license_metadata", return_value=None)
+    def test_no_license_means_unlimited(self, _mock_meta: MagicMock) -> None:
+        result = check_seat_availability(MagicMock(), seats_needed=1)
+        assert result.available is True
+
+    @patch("ee.onyx.db.license.get_used_seats", return_value=5)
+    @patch("ee.onyx.db.license.get_license_metadata")
+    def test_seats_available(self, mock_meta: MagicMock, _mock_used: MagicMock) -> None:
+        mock_meta.return_value = _make_license_metadata(seats=10)
+        result = check_seat_availability(MagicMock(), seats_needed=1)
+        assert result.available is True
+
+    @patch("ee.onyx.db.license.get_used_seats", return_value=10)
+    @patch("ee.onyx.db.license.get_license_metadata")
+    def test_seats_full_blocks_creation(
+        self, mock_meta: MagicMock, _mock_used: MagicMock
+    ) -> None:
+        mock_meta.return_value = _make_license_metadata(seats=10)
+        result = check_seat_availability(MagicMock(), seats_needed=1)
+        assert result.available is False
+        assert result.error_message is not None
+        assert "10 of 10" in result.error_message
+
+    @patch("ee.onyx.db.license.get_used_seats", return_value=10)
+    @patch("ee.onyx.db.license.get_license_metadata")
+    def test_exactly_at_capacity_allows_no_more(
+        self, mock_meta: MagicMock, _mock_used: MagicMock
+    ) -> None:
+        """Filling to 100% is allowed; exceeding is not."""
+        mock_meta.return_value = _make_license_metadata(seats=10)
+        result = check_seat_availability(MagicMock(), seats_needed=1)
+        assert result.available is False
+
+    @patch("ee.onyx.db.license.get_used_seats", return_value=9)
+    @patch("ee.onyx.db.license.get_license_metadata")
+    def test_filling_to_capacity_is_allowed(
+        self, mock_meta: MagicMock, _mock_used: MagicMock
+    ) -> None:
+        mock_meta.return_value = _make_license_metadata(seats=10)
+        result = check_seat_availability(MagicMock(), seats_needed=1)
+        assert result.available is True
+
+
+class TestCheckSeatAvailabilityMultiTenant:
+    """Seat checks for multi-tenant cloud (MULTI_TENANT=True).
+
+    Verifies that get_used_seats takes the MULTI_TENANT branch
+    and delegates to get_tenant_count.
+    """
+
+    @patch("ee.onyx.db.license.MULTI_TENANT", True)
+    @patch(
+        "ee.onyx.server.tenants.user_mapping.get_tenant_count",
+        return_value=5,
+    )
+    @patch("ee.onyx.db.license.get_license_metadata")
+    def test_seats_available_multi_tenant(
+        self,
+        mock_meta: MagicMock,
+        mock_tenant_count: MagicMock,
+    ) -> None:
+        mock_meta.return_value = _make_license_metadata(seats=10)
+        result = check_seat_availability(
+            MagicMock(), seats_needed=1, tenant_id="tenant-abc"
+        )
+        assert result.available is True
+        mock_tenant_count.assert_called_once_with("tenant-abc")
+
+    @patch("ee.onyx.db.license.MULTI_TENANT", True)
+    @patch(
+        "ee.onyx.server.tenants.user_mapping.get_tenant_count",
+        return_value=10,
+    )
+    @patch("ee.onyx.db.license.get_license_metadata")
+    def test_seats_full_multi_tenant(
+        self,
+        mock_meta: MagicMock,
+        mock_tenant_count: MagicMock,
+    ) -> None:
+        mock_meta.return_value = _make_license_metadata(seats=10)
+        result = check_seat_availability(
+            MagicMock(), seats_needed=1, tenant_id="tenant-abc"
+        )
+        assert result.available is False
+        assert result.error_message is not None
+        mock_tenant_count.assert_called_once_with("tenant-abc")

backend/tests/unit/onyx/background/celery/tasks/test_user_file_impl_redis_locking.py

@@ -0,0 +1,291 @@
+"""Tests for the _impl functions' redis_locking parameter.
+
+Verifies that:
+- redis_locking=True acquires/releases Redis locks and clears queued keys
+- redis_locking=False skips all Redis operations entirely
+- Both paths execute the same business logic (DB lookup, status check)
+"""
+
+from unittest.mock import MagicMock
+from unittest.mock import patch
+from uuid import uuid4
+
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    delete_user_file_impl,
+)
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    process_user_file_impl,
+)
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    project_sync_user_file_impl,
+)
+
+TASKS_MODULE = "onyx.background.celery.tasks.user_file_processing.tasks"
+
+
+def _mock_session_returning_none() -> MagicMock:
+    """Return a mock session whose .get() returns None (file not found)."""
+    session = MagicMock()
+    session.get.return_value = None
+    session.execute.return_value.scalar_one_or_none.return_value = None
+    return session
+
+
+# ------------------------------------------------------------------
+# process_user_file_impl
+# ------------------------------------------------------------------
+
+
+class TestProcessUserFileImpl:
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_true_acquires_and_releases_lock(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = True
+        lock.owned.return_value = True
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        user_file_id = str(uuid4())
+        process_user_file_impl(
+            user_file_id=user_file_id,
+            tenant_id="test-tenant",
+            redis_locking=True,
+        )
+
+        mock_get_redis.assert_called_once_with(tenant_id="test-tenant")
+        redis_client.delete.assert_called_once()
+        lock.acquire.assert_called_once_with(blocking=False)
+        lock.release.assert_called_once()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_true_skips_when_lock_held(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = False
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        process_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=True,
+        )
+
+        lock.acquire.assert_called_once()
+        mock_get_session.assert_not_called()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_false_skips_redis_entirely(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        process_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=False,
+        )
+
+        mock_get_redis.assert_not_called()
+        mock_get_session.assert_called_once()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_both_paths_call_db_get(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        """Both redis_locking=True and False should call db_session.get(UserFile, ...)."""
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = True
+        lock.owned.return_value = True
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        uid = str(uuid4())
+
+        process_user_file_impl(user_file_id=uid, tenant_id="t", redis_locking=True)
+        call_count_true = session.get.call_count
+
+        session.reset_mock()
+        mock_get_session.reset_mock()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        process_user_file_impl(user_file_id=uid, tenant_id="t", redis_locking=False)
+        call_count_false = session.get.call_count
+
+        assert call_count_true == call_count_false == 1
+
+
+# ------------------------------------------------------------------
+# delete_user_file_impl
+# ------------------------------------------------------------------
+
+
+class TestDeleteUserFileImpl:
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_true_acquires_and_releases_lock(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = True
+        lock.owned.return_value = True
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        delete_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=True,
+        )
+
+        mock_get_redis.assert_called_once()
+        lock.acquire.assert_called_once_with(blocking=False)
+        lock.release.assert_called_once()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_true_skips_when_lock_held(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = False
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        delete_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=True,
+        )
+
+        lock.acquire.assert_called_once()
+        mock_get_session.assert_not_called()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_false_skips_redis_entirely(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        delete_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=False,
+        )
+
+        mock_get_redis.assert_not_called()
+        mock_get_session.assert_called_once()
+
+
+# ------------------------------------------------------------------
+# project_sync_user_file_impl
+# ------------------------------------------------------------------
+
+
+class TestProjectSyncUserFileImpl:
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_true_acquires_and_releases_lock(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = True
+        lock.owned.return_value = True
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        project_sync_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=True,
+        )
+
+        mock_get_redis.assert_called_once()
+        redis_client.delete.assert_called_once()
+        lock.acquire.assert_called_once_with(blocking=False)
+        lock.release.assert_called_once()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_true_skips_when_lock_held(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        redis_client = MagicMock()
+        lock = MagicMock()
+        lock.acquire.return_value = False
+        redis_client.lock.return_value = lock
+        mock_get_redis.return_value = redis_client
+
+        project_sync_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=True,
+        )
+
+        lock.acquire.assert_called_once()
+        mock_get_session.assert_not_called()
+
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    @patch(f"{TASKS_MODULE}.get_redis_client")
+    def test_redis_locking_false_skips_redis_entirely(
+        self,
+        mock_get_redis: MagicMock,
+        mock_get_session: MagicMock,
+    ) -> None:
+        session = _mock_session_returning_none()
+        mock_get_session.return_value.__enter__.return_value = session
+
+        project_sync_user_file_impl(
+            user_file_id=str(uuid4()),
+            tenant_id="test-tenant",
+            redis_locking=False,
+        )
+
+        mock_get_redis.assert_not_called()
+        mock_get_session.assert_called_once()

backend/tests/unit/onyx/background/celery/tasks/test_user_file_processing_no_vectordb.py

@@ -0,0 +1,421 @@
+"""Tests for no-vector-DB user file processing paths.
+
+Verifies that when DISABLE_VECTOR_DB is True:
+- process_user_file_impl calls _process_user_file_without_vector_db (not indexing)
+- _process_user_file_without_vector_db extracts text, counts tokens, stores plaintext,
+  sets status=COMPLETED and chunk_count=0
+- delete_user_file_impl skips vector DB chunk deletion
+- project_sync_user_file_impl skips vector DB metadata update
+"""
+
+from unittest.mock import MagicMock
+from unittest.mock import patch
+from uuid import uuid4
+
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    _process_user_file_without_vector_db,
+)
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    delete_user_file_impl,
+)
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    process_user_file_impl,
+)
+from onyx.background.celery.tasks.user_file_processing.tasks import (
+    project_sync_user_file_impl,
+)
+from onyx.configs.constants import DocumentSource
+from onyx.connectors.models import Document
+from onyx.connectors.models import TextSection
+from onyx.db.enums import UserFileStatus
+
+TASKS_MODULE = "onyx.background.celery.tasks.user_file_processing.tasks"
+LLM_FACTORY_MODULE = "onyx.llm.factory"
+
+
+def _make_documents(texts: list[str]) -> list[Document]:
+    """Build a list of Document objects with the given section texts."""
+    return [
+        Document(
+            id=str(uuid4()),
+            source=DocumentSource.USER_FILE,
+            sections=[TextSection(text=t)],
+            semantic_identifier=f"test-doc-{i}",
+            metadata={},
+        )
+        for i, t in enumerate(texts)
+    ]
+
+
+def _make_user_file(
+    *,
+    status: UserFileStatus = UserFileStatus.PROCESSING,
+    file_id: str = "test-file-id",
+    name: str = "test.txt",
+) -> MagicMock:
+    """Return a MagicMock mimicking a UserFile ORM instance."""
+    uf = MagicMock()
+    uf.id = uuid4()
+    uf.file_id = file_id
+    uf.name = name
+    uf.status = status
+    uf.token_count = None
+    uf.chunk_count = None
+    uf.last_project_sync_at = None
+    uf.projects = []
+    uf.assistants = []
+    uf.needs_project_sync = True
+    uf.needs_persona_sync = True
+    return uf
+
+
+# ------------------------------------------------------------------
+# _process_user_file_without_vector_db — direct tests
+# ------------------------------------------------------------------
+
+
+class TestProcessUserFileWithoutVectorDb:
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func")
+    @patch(f"{LLM_FACTORY_MODULE}.get_default_llm")
+    def test_extracts_and_combines_text(
+        self,
+        mock_get_llm: MagicMock,  # noqa: ARG002
+        mock_get_encode: MagicMock,
+        mock_store_plaintext: MagicMock,
+    ) -> None:
+        mock_encode = MagicMock(return_value=[1, 2, 3, 4, 5])
+        mock_get_encode.return_value = mock_encode
+
+        uf = _make_user_file()
+        docs = _make_documents(["hello world", "foo bar"])
+        db_session = MagicMock()
+
+        _process_user_file_without_vector_db(uf, docs, db_session)
+
+        stored_text = mock_store_plaintext.call_args.kwargs["plaintext_content"]
+        assert "hello world" in stored_text
+        assert "foo bar" in stored_text
+
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func")
+    @patch(f"{LLM_FACTORY_MODULE}.get_default_llm")
+    def test_computes_token_count(
+        self,
+        mock_get_llm: MagicMock,  # noqa: ARG002
+        mock_get_encode: MagicMock,
+        mock_store_plaintext: MagicMock,  # noqa: ARG002
+    ) -> None:
+        mock_encode = MagicMock(return_value=list(range(42)))
+        mock_get_encode.return_value = mock_encode
+
+        uf = _make_user_file()
+        docs = _make_documents(["some text content"])
+        db_session = MagicMock()
+
+        _process_user_file_without_vector_db(uf, docs, db_session)
+
+        assert uf.token_count == 42
+
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func")
+    @patch(f"{LLM_FACTORY_MODULE}.get_default_llm")
+    def test_token_count_falls_back_to_none_on_error(
+        self,
+        mock_get_llm: MagicMock,
+        mock_get_encode: MagicMock,  # noqa: ARG002
+        mock_store_plaintext: MagicMock,  # noqa: ARG002
+    ) -> None:
+        mock_get_llm.side_effect = RuntimeError("No LLM configured")
+
+        uf = _make_user_file()
+        docs = _make_documents(["text"])
+        db_session = MagicMock()
+
+        _process_user_file_without_vector_db(uf, docs, db_session)
+
+        assert uf.token_count is None
+
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func")
+    @patch(f"{LLM_FACTORY_MODULE}.get_default_llm")
+    def test_stores_plaintext(
+        self,
+        mock_get_llm: MagicMock,  # noqa: ARG002
+        mock_get_encode: MagicMock,
+        mock_store_plaintext: MagicMock,
+    ) -> None:
+        mock_get_encode.return_value = MagicMock(return_value=[1])
+
+        uf = _make_user_file()
+        docs = _make_documents(["content to store"])
+        db_session = MagicMock()
+
+        _process_user_file_without_vector_db(uf, docs, db_session)
+
+        mock_store_plaintext.assert_called_once_with(
+            user_file_id=uf.id,
+            plaintext_content="content to store",
+        )
+
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func")
+    @patch(f"{LLM_FACTORY_MODULE}.get_default_llm")
+    def test_sets_completed_status_and_zero_chunk_count(
+        self,
+        mock_get_llm: MagicMock,  # noqa: ARG002
+        mock_get_encode: MagicMock,
+        mock_store_plaintext: MagicMock,  # noqa: ARG002
+    ) -> None:
+        mock_get_encode.return_value = MagicMock(return_value=[1])
+
+        uf = _make_user_file()
+        docs = _make_documents(["text"])
+        db_session = MagicMock()
+
+        _process_user_file_without_vector_db(uf, docs, db_session)
+
+        assert uf.status == UserFileStatus.COMPLETED
+        assert uf.chunk_count == 0
+        assert uf.last_project_sync_at is not None
+        db_session.add.assert_called_once_with(uf)
+        db_session.commit.assert_called_once()
+
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func")
+    @patch(f"{LLM_FACTORY_MODULE}.get_default_llm")
+    def test_preserves_deleting_status(
+        self,
+        mock_get_llm: MagicMock,  # noqa: ARG002
+        mock_get_encode: MagicMock,
+        mock_store_plaintext: MagicMock,  # noqa: ARG002
+    ) -> None:
+        mock_get_encode.return_value = MagicMock(return_value=[1])
+
+        uf = _make_user_file(status=UserFileStatus.DELETING)
+        docs = _make_documents(["text"])
+        db_session = MagicMock()
+
+        _process_user_file_without_vector_db(uf, docs, db_session)
+
+        assert uf.status == UserFileStatus.DELETING
+        assert uf.chunk_count == 0
+
+
+# ------------------------------------------------------------------
+# process_user_file_impl — branching on DISABLE_VECTOR_DB
+# ------------------------------------------------------------------
+
+
+class TestProcessImplBranching:
+    @patch(f"{TASKS_MODULE}._process_user_file_without_vector_db")
+    @patch(f"{TASKS_MODULE}._process_user_file_with_indexing")
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", True)
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_calls_without_vector_db_when_disabled(
+        self,
+        mock_get_session: MagicMock,
+        mock_with_indexing: MagicMock,
+        mock_without_vdb: MagicMock,
+    ) -> None:
+        uf = _make_user_file()
+        session = MagicMock()
+        session.get.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+
+        connector_mock = MagicMock()
+        connector_mock.load_from_state.return_value = [_make_documents(["hello"])]
+
+        with patch(f"{TASKS_MODULE}.LocalFileConnector", return_value=connector_mock):
+            process_user_file_impl(
+                user_file_id=str(uf.id),
+                tenant_id="test-tenant",
+                redis_locking=False,
+            )
+
+        mock_without_vdb.assert_called_once()
+        mock_with_indexing.assert_not_called()
+
+    @patch(f"{TASKS_MODULE}._process_user_file_without_vector_db")
+    @patch(f"{TASKS_MODULE}._process_user_file_with_indexing")
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", False)
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_calls_with_indexing_when_vector_db_enabled(
+        self,
+        mock_get_session: MagicMock,
+        mock_with_indexing: MagicMock,
+        mock_without_vdb: MagicMock,
+    ) -> None:
+        uf = _make_user_file()
+        session = MagicMock()
+        session.get.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+
+        connector_mock = MagicMock()
+        connector_mock.load_from_state.return_value = [_make_documents(["hello"])]
+
+        with patch(f"{TASKS_MODULE}.LocalFileConnector", return_value=connector_mock):
+            process_user_file_impl(
+                user_file_id=str(uf.id),
+                tenant_id="test-tenant",
+                redis_locking=False,
+            )
+
+        mock_with_indexing.assert_called_once()
+        mock_without_vdb.assert_not_called()
+
+    @patch(f"{TASKS_MODULE}.run_indexing_pipeline")
+    @patch(f"{TASKS_MODULE}.store_user_file_plaintext")
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", True)
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_indexing_pipeline_not_called_when_disabled(
+        self,
+        mock_get_session: MagicMock,
+        mock_store_plaintext: MagicMock,  # noqa: ARG002
+        mock_run_pipeline: MagicMock,
+    ) -> None:
+        """End-to-end: verify run_indexing_pipeline is never invoked."""
+        uf = _make_user_file()
+        session = MagicMock()
+        session.get.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+
+        connector_mock = MagicMock()
+        connector_mock.load_from_state.return_value = [_make_documents(["content"])]
+
+        with (
+            patch(f"{TASKS_MODULE}.LocalFileConnector", return_value=connector_mock),
+            patch(f"{LLM_FACTORY_MODULE}.get_default_llm"),
+            patch(
+                f"{LLM_FACTORY_MODULE}.get_llm_tokenizer_encode_func",
+                return_value=MagicMock(return_value=[1, 2, 3]),
+            ),
+        ):
+            process_user_file_impl(
+                user_file_id=str(uf.id),
+                tenant_id="test-tenant",
+                redis_locking=False,
+            )
+
+        mock_run_pipeline.assert_not_called()
+
+
+# ------------------------------------------------------------------
+# delete_user_file_impl — vector DB skip
+# ------------------------------------------------------------------
+
+
+class TestDeleteImplNoVectorDb:
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", True)
+    @patch(f"{TASKS_MODULE}.get_default_file_store")
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_skips_vector_db_deletion(
+        self,
+        mock_get_session: MagicMock,
+        mock_get_file_store: MagicMock,
+    ) -> None:
+        uf = _make_user_file(status=UserFileStatus.DELETING)
+        session = MagicMock()
+        session.get.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+        mock_get_file_store.return_value = MagicMock()
+
+        with (
+            patch(f"{TASKS_MODULE}.get_all_document_indices") as mock_get_indices,
+            patch(f"{TASKS_MODULE}.get_active_search_settings") as mock_get_ss,
+            patch(f"{TASKS_MODULE}.httpx_init_vespa_pool") as mock_vespa_pool,
+        ):
+            delete_user_file_impl(
+                user_file_id=str(uf.id),
+                tenant_id="test-tenant",
+                redis_locking=False,
+            )
+
+            mock_get_indices.assert_not_called()
+            mock_get_ss.assert_not_called()
+            mock_vespa_pool.assert_not_called()
+
+        session.delete.assert_called_once_with(uf)
+        session.commit.assert_called_once()
+
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", True)
+    @patch(f"{TASKS_MODULE}.get_default_file_store")
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_still_deletes_file_store_and_db_record(
+        self,
+        mock_get_session: MagicMock,
+        mock_get_file_store: MagicMock,
+    ) -> None:
+        uf = _make_user_file(status=UserFileStatus.DELETING)
+        session = MagicMock()
+        session.get.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+
+        file_store = MagicMock()
+        mock_get_file_store.return_value = file_store
+
+        delete_user_file_impl(
+            user_file_id=str(uf.id),
+            tenant_id="test-tenant",
+            redis_locking=False,
+        )
+
+        assert file_store.delete_file.call_count == 2
+        session.delete.assert_called_once_with(uf)
+        session.commit.assert_called_once()
+
+
+# ------------------------------------------------------------------
+# project_sync_user_file_impl — vector DB skip
+# ------------------------------------------------------------------
+
+
+class TestProjectSyncImplNoVectorDb:
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", True)
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_skips_vector_db_update(
+        self,
+        mock_get_session: MagicMock,
+    ) -> None:
+        uf = _make_user_file(status=UserFileStatus.COMPLETED)
+        session = MagicMock()
+        session.execute.return_value.scalar_one_or_none.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+
+        with (
+            patch(f"{TASKS_MODULE}.get_all_document_indices") as mock_get_indices,
+            patch(f"{TASKS_MODULE}.get_active_search_settings") as mock_get_ss,
+            patch(f"{TASKS_MODULE}.httpx_init_vespa_pool") as mock_vespa_pool,
+        ):
+            project_sync_user_file_impl(
+                user_file_id=str(uf.id),
+                tenant_id="test-tenant",
+                redis_locking=False,
+            )
+
+            mock_get_indices.assert_not_called()
+            mock_get_ss.assert_not_called()
+            mock_vespa_pool.assert_not_called()
+
+    @patch(f"{TASKS_MODULE}.DISABLE_VECTOR_DB", True)
+    @patch(f"{TASKS_MODULE}.get_session_with_current_tenant")
+    def test_still_clears_sync_flags(
+        self,
+        mock_get_session: MagicMock,
+    ) -> None:
+        uf = _make_user_file(status=UserFileStatus.COMPLETED)
+        session = MagicMock()
+        session.execute.return_value.scalar_one_or_none.return_value = uf
+        mock_get_session.return_value.__enter__.return_value = session
+
+        project_sync_user_file_impl(
+            user_file_id=str(uf.id),
+            tenant_id="test-tenant",
+            redis_locking=False,
+        )
+
+        assert uf.needs_project_sync is False
+        assert uf.needs_persona_sync is False
+        assert uf.last_project_sync_at is not None
+        session.add.assert_called_once_with(uf)
+        session.commit.assert_called_once()

backend/tests/unit/onyx/chat/test_stop_signal_checker.py

@@ -0,0 +1,166 @@
+"""Unit tests for stop_signal_checker and chat_processing_checker.
+
+These modules are safety-critical — they control whether a chat stream
+continues or stops.  The tests use a simple in-memory CacheBackend stub
+so no external services are needed.
+"""
+
+from uuid import uuid4
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.interface import CacheLock
+from onyx.chat.chat_processing_checker import is_chat_session_processing
+from onyx.chat.chat_processing_checker import set_processing_status
+from onyx.chat.stop_signal_checker import FENCE_TTL
+from onyx.chat.stop_signal_checker import is_connected
+from onyx.chat.stop_signal_checker import reset_cancel_status
+from onyx.chat.stop_signal_checker import set_fence
+
+
+class _MemoryCacheBackend(CacheBackend):
+    """Minimal in-memory CacheBackend for unit tests."""
+
+    def __init__(self) -> None:
+        self._store: dict[str, bytes] = {}
+
+    def get(self, key: str) -> bytes | None:
+        return self._store.get(key)
+
+    def set(
+        self,
+        key: str,
+        value: str | bytes | int | float,
+        ex: int | None = None,  # noqa: ARG002
+    ) -> None:
+        if isinstance(value, bytes):
+            self._store[key] = value
+        else:
+            self._store[key] = str(value).encode()
+
+    def delete(self, key: str) -> None:
+        self._store.pop(key, None)
+
+    def exists(self, key: str) -> bool:
+        return key in self._store
+
+    def expire(self, key: str, seconds: int) -> None:
+        pass
+
+    def ttl(self, key: str) -> int:
+        return -2 if key not in self._store else -1
+
+    def lock(self, name: str, timeout: float | None = None) -> CacheLock:
+        raise NotImplementedError
+
+    def rpush(self, key: str, value: str | bytes) -> None:
+        raise NotImplementedError
+
+    def blpop(self, keys: list[str], timeout: int = 0) -> tuple[bytes, bytes] | None:
+        raise NotImplementedError
+
+
+# ── stop_signal_checker ──────────────────────────────────────────────
+
+
+class TestSetFence:
+    def test_set_fence_true_creates_key(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_fence(sid, cache, True)
+        assert not is_connected(sid, cache)
+
+    def test_set_fence_false_removes_key(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_fence(sid, cache, True)
+        set_fence(sid, cache, False)
+        assert is_connected(sid, cache)
+
+    def test_set_fence_false_noop_when_absent(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_fence(sid, cache, False)
+        assert is_connected(sid, cache)
+
+    def test_set_fence_uses_ttl(self) -> None:
+        """Verify set_fence passes ex=FENCE_TTL to cache.set."""
+        calls: list[dict[str, object]] = []
+        cache = _MemoryCacheBackend()
+        original_set = cache.set
+
+        def tracking_set(
+            key: str,
+            value: str | bytes | int | float,
+            ex: int | None = None,
+        ) -> None:
+            calls.append({"key": key, "ex": ex})
+            original_set(key, value, ex=ex)
+
+        cache.set = tracking_set  # type: ignore[method-assign]
+
+        set_fence(uuid4(), cache, True)
+        assert len(calls) == 1
+        assert calls[0]["ex"] == FENCE_TTL
+
+
+class TestIsConnected:
+    def test_connected_when_no_fence(self) -> None:
+        cache = _MemoryCacheBackend()
+        assert is_connected(uuid4(), cache)
+
+    def test_disconnected_when_fence_set(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_fence(sid, cache, True)
+        assert not is_connected(sid, cache)
+
+    def test_sessions_are_isolated(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid1, sid2 = uuid4(), uuid4()
+        set_fence(sid1, cache, True)
+        assert not is_connected(sid1, cache)
+        assert is_connected(sid2, cache)
+
+
+class TestResetCancelStatus:
+    def test_clears_fence(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_fence(sid, cache, True)
+        reset_cancel_status(sid, cache)
+        assert is_connected(sid, cache)
+
+    def test_noop_when_no_fence(self) -> None:
+        cache = _MemoryCacheBackend()
+        reset_cancel_status(uuid4(), cache)
+
+
+# ── chat_processing_checker ──────────────────────────────────────────
+
+
+class TestSetProcessingStatus:
+    def test_set_true_marks_processing(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_processing_status(sid, cache, True)
+        assert is_chat_session_processing(sid, cache)
+
+    def test_set_false_clears_processing(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid = uuid4()
+        set_processing_status(sid, cache, True)
+        set_processing_status(sid, cache, False)
+        assert not is_chat_session_processing(sid, cache)
+
+
+class TestIsChatSessionProcessing:
+    def test_not_processing_by_default(self) -> None:
+        cache = _MemoryCacheBackend()
+        assert not is_chat_session_processing(uuid4(), cache)
+
+    def test_sessions_are_isolated(self) -> None:
+        cache = _MemoryCacheBackend()
+        sid1, sid2 = uuid4(), uuid4()
+        set_processing_status(sid1, cache, True)
+        assert is_chat_session_processing(sid1, cache)
+        assert not is_chat_session_processing(sid2, cache)

backend/tests/unit/onyx/federated_connectors/test_oauth_utils.py

@@ -0,0 +1,163 @@
+"""Unit tests for federated OAuth state generation and verification.
+
+Uses unittest.mock to patch get_cache_backend so no external services
+are needed.  Verifies the generate -> verify round-trip, one-time-use
+semantics, TTL propagation, and error handling.
+"""
+
+from unittest.mock import patch
+
+import pytest
+
+from onyx.cache.interface import CacheBackend
+from onyx.cache.interface import CacheLock
+from onyx.federated_connectors.oauth_utils import generate_oauth_state
+from onyx.federated_connectors.oauth_utils import OAUTH_STATE_TTL
+from onyx.federated_connectors.oauth_utils import OAuthSession
+from onyx.federated_connectors.oauth_utils import verify_oauth_state
+
+
+class _MemoryCacheBackend(CacheBackend):
+    """Minimal in-memory CacheBackend for unit tests."""
+
+    def __init__(self) -> None:
+        self._store: dict[str, bytes] = {}
+        self.set_calls: list[dict[str, object]] = []
+
+    def get(self, key: str) -> bytes | None:
+        return self._store.get(key)
+
+    def set(
+        self,
+        key: str,
+        value: str | bytes | int | float,
+        ex: int | None = None,
+    ) -> None:
+        self.set_calls.append({"key": key, "ex": ex})
+        if isinstance(value, bytes):
+            self._store[key] = value
+        else:
+            self._store[key] = str(value).encode()
+
+    def delete(self, key: str) -> None:
+        self._store.pop(key, None)
+
+    def exists(self, key: str) -> bool:
+        return key in self._store
+
+    def expire(self, key: str, seconds: int) -> None:
+        pass
+
+    def ttl(self, key: str) -> int:
+        return -2 if key not in self._store else -1
+
+    def lock(self, name: str, timeout: float | None = None) -> CacheLock:
+        raise NotImplementedError
+
+    def rpush(self, key: str, value: str | bytes) -> None:
+        raise NotImplementedError
+
+    def blpop(self, keys: list[str], timeout: int = 0) -> tuple[bytes, bytes] | None:
+        raise NotImplementedError
+
+
+def _patched(cache: _MemoryCacheBackend):  # type: ignore[no-untyped-def]
+    return patch(
+        "onyx.federated_connectors.oauth_utils.get_cache_backend",
+        return_value=cache,
+    )
+
+
+class TestGenerateAndVerifyRoundTrip:
+    def test_round_trip_basic(self) -> None:
+        cache = _MemoryCacheBackend()
+        with _patched(cache):
+            state = generate_oauth_state(
+                federated_connector_id=42,
+                user_id="user-abc",
+            )
+            session = verify_oauth_state(state)
+
+        assert session.federated_connector_id == 42
+        assert session.user_id == "user-abc"
+        assert session.redirect_uri is None
+        assert session.additional_data == {}
+
+    def test_round_trip_with_all_fields(self) -> None:
+        cache = _MemoryCacheBackend()
+        with _patched(cache):
+            state = generate_oauth_state(
+                federated_connector_id=7,
+                user_id="user-xyz",
+                redirect_uri="https://example.com/callback",
+                additional_data={"scope": "read"},
+            )
+            session = verify_oauth_state(state)
+
+        assert session.federated_connector_id == 7
+        assert session.user_id == "user-xyz"
+        assert session.redirect_uri == "https://example.com/callback"
+        assert session.additional_data == {"scope": "read"}
+
+
+class TestOneTimeUse:
+    def test_verify_deletes_state(self) -> None:
+        cache = _MemoryCacheBackend()
+        with _patched(cache):
+            state = generate_oauth_state(federated_connector_id=1, user_id="u")
+            verify_oauth_state(state)
+
+            with pytest.raises(ValueError, match="OAuth state not found"):
+                verify_oauth_state(state)
+
+
+class TestTTLPropagation:
+    def test_default_ttl(self) -> None:
+        cache = _MemoryCacheBackend()
+        with _patched(cache):
+            generate_oauth_state(federated_connector_id=1, user_id="u")
+
+        assert len(cache.set_calls) == 1
+        assert cache.set_calls[0]["ex"] == OAUTH_STATE_TTL
+
+    def test_custom_ttl(self) -> None:
+        cache = _MemoryCacheBackend()
+        with _patched(cache):
+            generate_oauth_state(federated_connector_id=1, user_id="u", ttl=600)
+
+        assert cache.set_calls[0]["ex"] == 600
+
+
+class TestVerifyInvalidState:
+    def test_missing_state_raises(self) -> None:
+        cache = _MemoryCacheBackend()
+        with _patched(cache):
+            state = generate_oauth_state(federated_connector_id=1, user_id="u")
+            # Manually clear the cache to simulate expiration
+            cache._store.clear()
+
+            with pytest.raises(ValueError, match="OAuth state not found"):
+                verify_oauth_state(state)
+
+
+class TestOAuthSessionSerialization:
+    def test_to_dict_from_dict_round_trip(self) -> None:
+        session = OAuthSession(
+            federated_connector_id=5,
+            user_id="u-123",
+            redirect_uri="https://redir.example.com",
+            additional_data={"key": "val"},
+        )
+        d = session.to_dict()
+        restored = OAuthSession.from_dict(d)
+
+        assert restored.federated_connector_id == 5
+        assert restored.user_id == "u-123"
+        assert restored.redirect_uri == "https://redir.example.com"
+        assert restored.additional_data == {"key": "val"}
+
+    def test_from_dict_defaults(self) -> None:
+        minimal = {"federated_connector_id": 1, "user_id": "u"}
+        session = OAuthSession.from_dict(minimal)
+        assert session.redirect_uri is None
+        assert session.additional_data == {}

backend/tests/unit/onyx/server/scim/conftest.py

@@ -19,6 +19,7 @@ from ee.onyx.server.scim.models import ScimListResponse
 from ee.onyx.server.scim.models import ScimName
 from ee.onyx.server.scim.models import ScimUserResource
 from ee.onyx.server.scim.providers.base import ScimProvider
+from ee.onyx.server.scim.providers.entra import EntraProvider
 from ee.onyx.server.scim.providers.okta import OktaProvider
 from onyx.db.models import ScimToken
 from onyx.db.models import ScimUserMapping
@@ -26,6 +27,10 @@ from onyx.db.models import User
 from onyx.db.models import UserGroup
 from onyx.db.models import UserRole
 
+# Every supported SCIM provider must appear here so that all endpoint tests
+# run against it.  When adding a new provider, add its class to this list.
+SCIM_PROVIDERS: list[type[ScimProvider]] = [OktaProvider, EntraProvider]
+
 
 @pytest.fixture
 def mock_db_session() -> MagicMock:
@@ -41,10 +46,10 @@ def mock_token() -> MagicMock:
     return token
 
 
-@pytest.fixture
-def provider() -> ScimProvider:
-    """An OktaProvider instance for endpoint tests."""
-    return OktaProvider()
+@pytest.fixture(params=SCIM_PROVIDERS, ids=[p.__name__ for p in SCIM_PROVIDERS])
+def provider(request: pytest.FixtureRequest) -> ScimProvider:
+    """Parameterized provider — runs each test with every provider in SCIM_PROVIDERS."""
+    return request.param()
 
 
 @pytest.fixture

backend/tests/unit/onyx/server/scim/test_auth.py

@@ -1,11 +1,11 @@
 from unittest.mock import MagicMock
 
 import pytest
-from fastapi import HTTPException
 
 from ee.onyx.server.scim.auth import _hash_scim_token
 from ee.onyx.server.scim.auth import generate_scim_token
 from ee.onyx.server.scim.auth import SCIM_TOKEN_PREFIX
+from ee.onyx.server.scim.auth import ScimAuthError
 from ee.onyx.server.scim.auth import verify_scim_token
 
 
@@ -60,7 +60,7 @@ class TestVerifyScimToken:
     def test_missing_header_raises_401(self) -> None:
         request = self._make_request(None)
         dal = self._make_dal()
-        with pytest.raises(HTTPException) as exc_info:
+        with pytest.raises(ScimAuthError) as exc_info:
             verify_scim_token(request, dal)
         assert exc_info.value.status_code == 401
         assert "Missing" in str(exc_info.value.detail)
@@ -68,7 +68,7 @@ class TestVerifyScimToken:
     def test_wrong_prefix_raises_401(self) -> None:
         request = self._make_request("Bearer on_some_api_key")
         dal = self._make_dal()
-        with pytest.raises(HTTPException) as exc_info:
+        with pytest.raises(ScimAuthError) as exc_info:
             verify_scim_token(request, dal)
         assert exc_info.value.status_code == 401
 
@@ -76,7 +76,7 @@ class TestVerifyScimToken:
         raw, _, _ = generate_scim_token()
         request = self._make_request(f"Bearer {raw}")
         dal = self._make_dal(token=None)
-        with pytest.raises(HTTPException) as exc_info:
+        with pytest.raises(ScimAuthError) as exc_info:
             verify_scim_token(request, dal)
         assert exc_info.value.status_code == 401
         assert "Invalid" in str(exc_info.value.detail)
@@ -87,7 +87,7 @@ class TestVerifyScimToken:
         mock_token = MagicMock()
         mock_token.is_active = False
         dal = self._make_dal(token=mock_token)
-        with pytest.raises(HTTPException) as exc_info:
+        with pytest.raises(ScimAuthError) as exc_info:
             verify_scim_token(request, dal)
         assert exc_info.value.status_code == 401
         assert "revoked" in str(exc_info.value.detail)

backend/tests/unit/onyx/server/scim/test_providers.py

@@ -109,7 +109,7 @@ class TestOktaProvider:
         result = provider.build_user_resource(user, None)
 
         assert result.name == ScimName(
-            givenName="Madonna", familyName=None, formatted="Madonna"
+            givenName="Madonna", familyName="", formatted="Madonna"
         )
 
     def test_build_user_resource_no_name(self) -> None:
@@ -117,7 +117,10 @@ class TestOktaProvider:
         user = _make_mock_user(personal_name=None)
         result = provider.build_user_resource(user, None)
 
-        assert result.name is None
+        # Falls back to deriving name from email local part
+        assert result.name == ScimName(
+            givenName="test", familyName="", formatted="test"
+        )
         assert result.displayName is None
 
     def test_build_user_resource_scim_username_preserves_case(self) -> None: