From da7bda35400f9dcff612caeeca87154f954c587e Mon Sep 17 00:00:00 2001
From: Zhongwen Deng <zhongwencool@gmail.com>
Date: Thu, 14 Apr 2022 15:07:45 +0800
Subject: [PATCH] fix: can't shutdown emqx_config_handler process.

---
 apps/emqx/src/emqx_config_handler.erl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/apps/emqx/src/emqx_config_handler.erl b/apps/emqx/src/emqx_config_handler.erl
index e57806d38..30eec029d 100644
--- a/apps/emqx/src/emqx_config_handler.erl
+++ b/apps/emqx/src/emqx_config_handler.erl
@@ -139,6 +139,9 @@ handle_cast(_Msg, State) ->
 handle_info(_Info, State) ->
     {noreply, State}.
 
+%% application shutdown, we can't call application_controller here.
+terminate(shutdown, _) ->
+    ok;
 terminate(_Reason, #{handlers := Handlers}) ->
     save_handlers(Handlers),
     ok.