Connector deletion fix (#2293)

---------

Co-authored-by: Weves <chrisweaver101@gmail.com>

backend/danswer/background/update.py

@@ -17,6 +17,7 @@
 from danswer.configs.app_configs import DISABLE_INDEX_UPDATE_ON_SWAP
 from danswer.configs.app_configs import NUM_INDEXING_WORKERS
 from danswer.configs.app_configs import NUM_SECONDARY_INDEXING_WORKERS
+from danswer.configs.constants import DocumentSource
 from danswer.configs.constants import POSTGRES_INDEXER_APP_NAME
 from danswer.db.connector import fetch_connectors
 from danswer.db.connector_credential_pair import fetch_connector_credential_pairs
@@ -46,7 +47,6 @@
 from shared_configs.configs import LOG_LEVEL
 from shared_configs.configs import MODEL_SERVER_PORT
 
-
 logger = setup_logger()
 
 # If the indexing dies, it's most likely due to resource constraints,
@@ -67,6 +67,10 @@ def _should_create_new_indexing(
 ) -> bool:
     connector = cc_pair.connector
 
+    # don't kick off indexing for `NOT_APPLICABLE` sources
+    if connector.source == DocumentSource.NOT_APPLICABLE:
+        return False
+
     # User can still manually create single indexing attempts via the UI for the
     # currently in use index
     if DISABLE_INDEX_UPDATE_ON_SWAP:

backend/danswer/db/document_set.py

@@ -524,37 +524,66 @@ def fetch_document_sets_for_documents(
     db_session: Session,
 ) -> Sequence[tuple[str, list[str]]]:
     """Gives back a list of (document_id, list[document_set_names]) tuples"""
+
+    """Building subqueries"""
+    # NOTE: have to build these subqueries first in order to guarantee that we get one
+    # returned row for each specified document_id. Basically, we want to do the filters first,
+    # then the outer joins.
+
+    # don't include CC pairs that are being deleted
+    # NOTE: CC pairs can never go from DELETING to any other state -> it's safe to ignore them
+    # as we can assume their document sets are no longer relevant
+    valid_cc_pairs_subquery = aliased(
+        ConnectorCredentialPair,
+        select(ConnectorCredentialPair)
+        .where(
+            ConnectorCredentialPair.status != ConnectorCredentialPairStatus.DELETING
+        )  # noqa: E712
+        .subquery(),
+    )
+
+    valid_document_set__cc_pairs_subquery = aliased(
+        DocumentSet__ConnectorCredentialPair,
+        select(DocumentSet__ConnectorCredentialPair)
+        .where(DocumentSet__ConnectorCredentialPair.is_current == True)  # noqa: E712
+        .subquery(),
+    )
+    """End building subqueries"""
+
     stmt = (
-        select(Document.id, func.array_agg(DocumentSetDBModel.name))
-        .join(
-            DocumentSet__ConnectorCredentialPair,
-            DocumentSetDBModel.id
-            == DocumentSet__ConnectorCredentialPair.document_set_id,
-        )
-        .join(
-            ConnectorCredentialPair,
-            ConnectorCredentialPair.id
-            == DocumentSet__ConnectorCredentialPair.connector_credential_pair_id,
+        select(
+            Document.id,
+            func.coalesce(
+                func.array_remove(func.array_agg(DocumentSetDBModel.name), None), []
+            ).label("document_set_names"),
         )
-        .join(
+        # Here we select document sets by relation:
+        # Document -> DocumentByConnectorCredentialPair -> ConnectorCredentialPair ->
+        # DocumentSet__ConnectorCredentialPair -> DocumentSet
+        .outerjoin(
             DocumentByConnectorCredentialPair,
+            Document.id == DocumentByConnectorCredentialPair.id,
+        )
+        .outerjoin(
+            valid_cc_pairs_subquery,
             and_(
                 DocumentByConnectorCredentialPair.connector_id
-                == ConnectorCredentialPair.connector_id,
+                == valid_cc_pairs_subquery.connector_id,
                 DocumentByConnectorCredentialPair.credential_id
-                == ConnectorCredentialPair.credential_id,
+                == valid_cc_pairs_subquery.credential_id,
             ),
         )
-        .join(
-            Document,
-            Document.id == DocumentByConnectorCredentialPair.id,
+        .outerjoin(
+            valid_document_set__cc_pairs_subquery,
+            valid_cc_pairs_subquery.id
+            == valid_document_set__cc_pairs_subquery.connector_credential_pair_id,
+        )
+        .outerjoin(
+            DocumentSetDBModel,
+            DocumentSetDBModel.id
+            == valid_document_set__cc_pairs_subquery.document_set_id,
         )
         .where(Document.id.in_(document_ids))
-        # don't include CC pairs that are being deleted
-        # NOTE: CC pairs can never go from DELETING to any other state -> it's safe to ignore them
-        # as we can assume their document sets are no longer relevant
-        .where(ConnectorCredentialPair.status != ConnectorCredentialPairStatus.DELETING)
-        .where(DocumentSet__ConnectorCredentialPair.is_current == True)  # noqa: E712
         .group_by(Document.id)
     )
     return db_session.execute(stmt).all()  # type: ignore

backend/danswer/server/manage/administrative.py

@@ -166,10 +166,14 @@ def create_deletion_attempt_for_connector_id(
         get_editable=True,
     )
     if cc_pair is None:
+        error = (
+            f"Connector with ID '{connector_id}' and credential ID "
+            f"'{credential_id}' does not exist. Has it already been deleted?"
+        )
+        logger.error(error)
         raise HTTPException(
             status_code=404,
-            detail=f"Connector with ID '{connector_id}' and credential ID "
-            f"'{credential_id}' does not exist. Has it already been deleted?",
+            detail=error,
         )
 
     # Cancel any scheduled indexing attempts

backend/tests/integration/tests/connector/test_deletion.py

@@ -264,6 +264,8 @@ def test_connector_deletion_for_overlapping_connectors(
         doc_creating_user=admin_user,
     )
 
+    # EVERYTHING BELOW HERE IS CURRENTLY BROKEN AND NEEDS TO BE FIXED SERVER SIDE
+
     # delete connector 1
     CCPairManager.pause_cc_pair(
         cc_pair=cc_pair_1,
@@ -274,32 +276,30 @@ def test_connector_deletion_for_overlapping_connectors(
         user_performing_action=admin_user,
     )
 
-    # EVERYTHING BELOW HERE IS CURRENTLY BROKEN AND NEEDS TO BE FIXED SERVER SIDE
-
     # wait for deletion to finish
-    # CCPairManager.wait_for_deletion_completion(user_performing_action=admin_user)
+    CCPairManager.wait_for_deletion_completion(user_performing_action=admin_user)
 
-    # print("Connector 1 deleted")
+    print("Connector 1 deleted")
 
     # check that only connector 1 is deleted
     # TODO: check for the CC pair rather than the connector once the refactor is done
-    # CCPairManager.verify(
-    #     cc_pair=cc_pair_1,
-    #     verify_deleted=True,
-    #     user_performing_action=admin_user,
-    # )
-    # CCPairManager.verify(
-    #     cc_pair=cc_pair_2,
-    #     user_performing_action=admin_user,
-    # )
+    CCPairManager.verify(
+        cc_pair=cc_pair_1,
+        verify_deleted=True,
+        user_performing_action=admin_user,
+    )
+    CCPairManager.verify(
+        cc_pair=cc_pair_2,
+        user_performing_action=admin_user,
+    )
 
     # verify the document is not in any document sets
     # verify the document is only in user group 2
-    # DocumentManager.verify(
-    #     vespa_client=vespa_client,
-    #     cc_pair=cc_pair_2,
-    #     doc_set_names=[],
-    #     group_names=[user_group_2.name],
-    #     doc_creating_user=admin_user,
-    #     verify_deleted=False,
-    # )
+    DocumentManager.verify(
+        vespa_client=vespa_client,
+        cc_pair=cc_pair_2,
+        doc_set_names=[],
+        group_names=[user_group_2.name],
+        doc_creating_user=admin_user,
+        verify_deleted=False,
+    )