背景 有这样一个案例.客户备库意外宕机,从集群日志只看出发生了主备切换,备库一直持续恢复备库没有成功,从数据库日志看到如下报错: terminating connection because of crash of another server process DETAIL: The kingbase has commanded this server process to roll back the current transaction and exit, because another s…