hostgroup
3.ProxySQL Error: connection is locked to hostgroup 10 but trying to reach hostgroup 30
兼容问题，解决方案: 登上proxysql的管理端执行以下命令 set mysql-set_query_lock_on_hostgroup=0; 修改后，需要加载到RUNTIME， 并保存到disk load mysql variables to runtime; save mysql variab ......