diff --git a/apps/assets/signals_handler/node_assets_mapping.py b/apps/assets/signals_handler/node_assets_mapping.py
index 30eb9ed0b..e598c8698 100644
--- a/apps/assets/signals_handler/node_assets_mapping.py
+++ b/apps/assets/signals_handler/node_assets_mapping.py
@@ -84,10 +84,10 @@ def subscribe_node_assets_mapping_expire(sender, **kwargs):
                 subscribe = node_assets_mapping_for_memory_pub_sub.subscribe()
                 msgs = subscribe.listen()
                 # 开始之前关闭连接，因为server端可能关闭了连接，而 client 还在 CONN_MAX_AGE 中
-                close_old_connections()
                 for message in msgs:
                     if message["type"] != "message":
                         continue
+                    close_old_connections()
                     org_id = message['data'].decode()
                     root_org_id = Organization.ROOT_ID
                     Node.expire_node_all_asset_ids_mapping_from_memory(org_id)
@@ -96,6 +96,7 @@ def subscribe_node_assets_mapping_expire(sender, **kwargs):
                         "Expire node assets id mapping from memory of org={}, pid={}"
                         "".format(str(org_id), os.getpid())
                     )
+                    close_old_connections()
             except Exception as e:
                 logger.exception(f'subscribe_node_assets_mapping_expire: {e}')
                 Node.expire_all_orgs_node_all_asset_ids_mapping_from_memory()
diff --git a/apps/notifications/ws.py b/apps/notifications/ws.py
index 423639356..b5cd55fb1 100644
--- a/apps/notifications/ws.py
+++ b/apps/notifications/ws.py
@@ -52,11 +52,10 @@ class SiteMsgWebsocket(JsonWebsocketConsumer):
         try:
             msgs = self.chan.listen()
             # 开始之前关闭连接，因为server端可能关闭了连接，而 client 还在 CONN_MAX_AGE 中
-            close_old_connections()
             for message in msgs:
                 if message['type'] != 'message':
                     continue
-
+                close_old_connections()
                 try:
                     msg = json.loads(message['data'].decode())
                 except json.JSONDecoder as e:
@@ -70,6 +69,7 @@ class SiteMsgWebsocket(JsonWebsocketConsumer):
                 logger.debug('Message users: {}'.format(users))
                 if user_id in users:
                     self.send_unread_msg_count()
+                close_old_connections()
         except ConnectionError:
             logger.error('Redis chan closed')
         finally:
diff --git a/apps/settings/signals_handler.py b/apps/settings/signals_handler.py
index 483b26ee2..b247afd91 100644
--- a/apps/settings/signals_handler.py
+++ b/apps/settings/signals_handler.py
@@ -86,17 +86,17 @@ def subscribe_settings_change(sender, **kwargs):
                 sub = setting_pub_sub.subscribe()
                 msgs = sub.listen()
                 # 开始之前关闭连接，因为server端可能关闭了连接，而 client 还在 CONN_MAX_AGE 中
-                close_old_connections()
                 for msg in msgs:
                     if msg["type"] != "message":
                         continue
+                    close_old_connections()
                     item = msg['data'].decode()
                     logger.debug("Found setting change: {}".format(str(item)))
                     Setting.refresh_item(item)
+                    close_old_connections()
             except Exception as e:
                 logger.exception(f'subscribe_settings_change: {e}')
                 Setting.refresh_all_settings()
-            finally:
                 close_old_connections()
 
     t = threading.Thread(target=keep_subscribe_settings_change)