修改初始化配置参数配置

FworkSpider/feapder/buffer/heartbeat_buffer.py

@@ -26,7 +26,7 @@ class HeartBeatBuffer(threading.Thread):
     _prev_success_task_count = 0
     _prev_failed_task_count = 0
 
-    def __init__(self, redis_key):
+    def __init__(self, redis_key=None):
         if not hasattr(self, "_items_queue"):
             super(HeartBeatBuffer, self).__init__()