The zabbix process cannot be stopped and the machine freezes when the reboot command is executed
zabbix server version：6.0.11
Stop mysql first before stopping zabbix，Run the "systemctl stop zabbix-server" zabbix-server Process not ending.
Logs are always printed：
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