fix

app/chain/__init__.py

@@ -1,5 +1,4 @@
 import copy
-import gc
 import pickle
 import traceback
 from abc import ABCMeta
@@ -69,10 +68,6 @@ class ChainBase(metaclass=ABCMeta):
                 pickle.dump(cache, f)  # noqa
         except Exception as err:
             logger.error(f"保存缓存 {filename} 出错：{str(err)}")
-        finally:
-            # 主动资源回收
-            del cache
-            gc.collect()
 
     @staticmethod
     def remove_cache(filename: str) -> None: