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MySQL 高可用——双主-小手冰凉
source link: https://blog.51cto.com/14227204/2505626
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生产环境中一台mysql主机存在单点故障，所以我们要确保mysql的高可用性，即两台MySQL服务器如果其中有一台MySQL服务器挂掉后，另外一台能立马接替其进行工作。MySQL的高可用方案一般有如下几种：keepalived+双主，MHA，PXC，MMM，Heartbeat+DRBD等，比较常用的是keepalived+双主，MHA和PXC。本节主要介绍了利用keepalived实现MySQL数
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