The high availability cluster is set up on 11.50.xc7 server version.
高可用性集群设置在11.50 . xC 7服务器版本上。
It can service the user connections while the servers of the high availability cluster are brought down.
它能在高可用性集群的服务器停机时维护用户连接。
This article focuses on one of those features: upgrading a high availability cluster while it is online.
本文主要关注其中一个特性：在线升级高可用性集群。
应用推荐