MySQL高可用性方案
一些基本概念和背景知识
Switchover, Failover和Failback
当一个系统宕掉之后,手动的切换到冗余或者备份系统,这个过程称之为Switchover。如果是自动切换,不需要人工干预,那么称之为failover。
When a manual process is used to switch from one system to a redundant or standby system in case of a failure, we are talking about switchover. Automatic switchover, without human intervention, is called failover.
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