fix: improve source tracking so no file stat is lost (#190)

Signed-off-by: Anupam Kumar <kyteinsky@gmail.com>

Author: kyteinsky

context_chat_backend/chain/ingest/injest.py

@@ -117,6 +117,7 @@ def _process_sources(
 		'len(filtered_sources)': len(filtered_sources),
 		'filtered_sources': filtered_sources,
 	})
+	loaded_source_ids = [source.filename for source in existing_sources]
 
 	# update userIds for existing sources
 	# allow the userIds as additional users, not as the only users
@@ -138,23 +139,26 @@ def _process_sources(
 	if len(filtered_sources) == 0:
 		# no new sources to embed
 		logger.debug('Filtered all sources, nothing to embed')
-		return [], []
+		return loaded_source_ids, []  # pyright: ignore[reportReturnType]
 
 	logger.debug('Filtered sources:', extra={
 		'source_ids': [source.filename for source in filtered_sources]
 	})
+	# invalid/empty sources are filtered out here and not counted in loaded/retryable
 	indocuments = _sources_to_indocuments(config, filtered_sources)
 
 	logger.debug('Converted all sources to documents')
 
 	if len(indocuments) == 0:
-		# document(s) were empty, not an error
+		# filtered document(s) were invalid/empty, not an error
 		logger.debug('All documents were found empty after being processed')
-		return [], []
+		return loaded_source_ids, []  # pyright: ignore[reportReturnType]
 
-	added_sources, not_added_sources = vectordb.add_indocuments(indocuments)
+	added_source_ids, retry_source_ids = vectordb.add_indocuments(indocuments)
+	loaded_source_ids.extend(added_source_ids)
 	logger.debug('Added documents to vectordb')
-	return added_sources, not_added_sources
+
+	return loaded_source_ids, retry_source_ids  # pyright: ignore[reportReturnType]
 
 
 def _decode_latin_1(s: str) -> str:

context_chat_backend/controller.py

@@ -381,7 +381,7 @@ def _(sources: list[UploadFile]):
 			_indexing[source.filename] = source.size
 
 	try:
-		added_sources, not_added_sources = exec_in_proc(
+		loaded_sources, not_added_sources = exec_in_proc(
 			target=embed_sources,
 			args=(vectordb_loader, app.extra['CONFIG'], sources)
 		)
@@ -395,13 +395,14 @@ def _(sources: list[UploadFile]):
 				_indexing.pop(source.filename, None)
 		doc_parse_semaphore.release()
 
-	if len(added_sources) != len(sources):
+	if len(loaded_sources) != len(sources):
 		logger.debug('Some sources were not loaded', extra={
-			'Count of newly loaded sources': f'{len(added_sources)}/{len(sources)}',
-			'source_ids': added_sources,
+			'Count of loaded sources': f'{len(loaded_sources)}/{len(sources)}',
+			'source_ids': loaded_sources,
 		})
 
-	return JSONResponse({'loaded_sources': added_sources, 'sources_to_retry': not_added_sources})
+	# loaded sources include the existing sources that may only have their access updated
+	return JSONResponse({'loaded_sources': loaded_sources, 'sources_to_retry': not_added_sources})
 
 
 class Query(BaseModel):

context_chat_backend/vectordb/pgvector.py

@@ -131,7 +131,7 @@ def get_users(self) -> list[str]:
 
 	def add_indocuments(self, indocuments: list[InDocument]) -> tuple[list[str], list[str]]:
 		added_sources = []
-		not_added_sources = []
+		retry_sources = []
 		batch_size = PG_BATCH_SIZE // 5
 
 		with self.session_maker() as session:
@@ -155,24 +155,29 @@ def add_indocuments(self, indocuments: list[InDocument]) -> tuple[list[str], lis
 
 					self.decl_update_access(indoc.userIds, indoc.source_id, session)
 					added_sources.append(indoc.source_id)
+					session.commit()
 				except SafeDbException as e:
+					# for when the source_id is not found. This here can be an error in the DB
+					# and the source should be retried later
 					logger.exception('Error adding documents to vectordb', exc_info=e, extra={
 						'source_id': indoc.source_id,
 					})
+					retry_sources.append(indoc.source_id)
 					continue
 				except EmbeddingException as e:
 					logger.exception('Error adding documents to vectordb', exc_info=e, extra={
 						'source_id': indoc.source_id,
 					})
-					not_added_sources.append(indoc.source_id)
+					retry_sources.append(indoc.source_id)
 					continue
 				except Exception as e:
 					logger.exception('Error adding documents to vectordb', exc_info=e, extra={
 						'source_id': indoc.source_id,
 					})
+					retry_sources.append(indoc.source_id)
 					continue
 
-		return added_sources, not_added_sources
+		return added_sources, retry_sources
 
 	@timed
 	def check_sources(self, sources: list[UploadFile]) -> tuple[list[str], list[str]]: