Fix: ValueError: Formatting field not found in record: 'req_id' (#18327)

api/extensions/ext_logging.py

@@ -26,9 +26,12 @@ def init_app(app: DifyApp):
 
     # Always add StreamHandler to log to console
     sh = logging.StreamHandler(sys.stdout)
-    sh.addFilter(RequestIdFilter())
     log_handlers.append(sh)
 
+    # Apply RequestIdFilter to all handlers
+    for handler in log_handlers:
+        handler.addFilter(RequestIdFilter())
+
     logging.basicConfig(
         level=dify_config.LOG_LEVEL,
         format=dify_config.LOG_FORMAT,