From 32808cc873a98c4314a7e01a35d10fc44bceb8c8 Mon Sep 17 00:00:00 2001
From: bojiang <bojiang_@outlook.com>
Date: Wed, 16 Oct 2024 16:23:08 +0800
Subject: [PATCH] fix: avoid error message on graceful shutdown

---
 circus/arbiter.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/circus/arbiter.py b/circus/arbiter.py
index a443d370..91fe4893 100644
--- a/circus/arbiter.py
+++ b/circus/arbiter.py
@@ -581,6 +581,8 @@ def start_io_loop(self):
     def stop(self):
         logger.info('Arbiter exiting')
         self._stopping = True
+        if self.ctrl.caller is not None:
+            self.ctrl.caller.stop()
         yield self._stop_watchers(close_output_streams=True)
         if self._provided_loop:
             cb = self.stop_controller_and_close_sockets