diff --git a/spug_api/apps/monitor/executors.py b/spug_api/apps/monitor/executors.py
index d88eb02..3c60a94 100644
--- a/spug_api/apps/monitor/executors.py
+++ b/spug_api/apps/monitor/executors.py
@@ -1,6 +1,7 @@
 # Copyright: (c) OpenSpug Organization. https://github.com/openspug/spug
 # Copyright: (c) <spug.dev@gmail.com>
 # Released under the AGPL-3.0 License.
+from django.db import close_old_connections
 from apps.host.models import Host
 from socket import socket
 import subprocess
@@ -70,5 +71,6 @@ def dispatch(tp, addr, extra):
         command = extra
     else:
         raise TypeError(f'invalid monitor type: {tp!r}')
+    close_old_connections()
     host = Host.objects.filter(pk=addr).first()
     return host_executor(host, command)
diff --git a/spug_api/apps/schedule/executors.py b/spug_api/apps/schedule/executors.py
index c78b4b8..c5fb5b4 100644
--- a/spug_api/apps/schedule/executors.py
+++ b/spug_api/apps/schedule/executors.py
@@ -35,14 +35,13 @@ def host_executor(q, host, command):
         q.put((host.id, exit_code, round(time.time() - now, 3), out))
 
 
-def dispatch(command, targets, in_view=False):
-    if not in_view:
-        close_old_connections()
+def dispatch(command, targets):
     threads, q = [], Queue()
     for t in targets:
         if t == 'local':
             threads.append(Thread(target=local_executor, args=(q, command)))
         elif isinstance(t, int):
+            close_old_connections()
             host = Host.objects.filter(pk=t).first()
             if not host:
                 raise ValueError(f'unknown host id: {t!r}')
diff --git a/spug_api/apps/schedule/views.py b/spug_api/apps/schedule/views.py
index 022dbfa..6c3a831 100644
--- a/spug_api/apps/schedule/views.py
+++ b/spug_api/apps/schedule/views.py
@@ -110,7 +110,7 @@ class HistoryView(View):
         task = Task.objects.filter(pk=t_id).first()
         if not task:
             return json_response(error='未找到指定任务')
-        data = dispatch(task.command, json.loads(task.targets), True)
+        data = dispatch(task.command, json.loads(task.targets))
         score = 0
         for item in data:
             score += 1 if item[1] else 0