update

ruoyi-fastapi-backend/module_admin/controller/ragflow_controller.py

@@ -247,7 +247,23 @@ async def converse_with_chat_assistant(
                         }
                     )
             except Exception as e:
-                logger.warning(f"[KB_ES] 内部KB异常，fallback到RAGFlow: {e}")
+                logger.warning(f"[KB_ES] 内部KB异常: {e}")
+                if KBConfig.KB_FALLBACK == 'none':
+                    return StreamingResponse(
+                        stream_cached_response(
+                            '内部知识库检索失败，请稍后再试或补充更多关键词。',
+                            converse_params.chat_id,
+                            start_time,
+                            cache_source='kb_es_error'
+                        ),
+                        media_type='text/event-stream',
+                        headers={
+                            'Cache-Control': 'no-cache',
+                            'Connection': 'keep-alive',
+                            'X-Accel-Buffering': 'no',
+                            'Transfer-Encoding': 'chunked'
+                        }
+                    )
         
         logger.info(f'[RAG_SOURCE] 调用原生RAG服务 | chat_id={converse_params.chat_id} | question={converse_params.question}')
         result = RAGFlowService.converse_with_chat_assistant_services(converse_params)