mysql version：8.0.29

zabbix server version：6.0.11

linux：ubuntu21.10

Stop mysql first before stopping zabbix，Run the "systemctl stop zabbix-server" zabbix-server Process not ending.

Logs are always printed：

cannot stop HA manager: Cannot connect to service "haservice": [111] Connection refused. 

When you run the reboot command, the machine freezes.

HA manager process Always present And the parent process is 1.

Solve by modifying the source code；

The path is "src/zabbix_server/ha/ha_manager.c "

Deleted line 1903 resolved（"while"）

But it is not known whether there will be other effects；

Hope this problem can be fixed in 6.0LTS