mysql8雙機熱備高可用配置

mysql8主從雙機熱備配置 大致拓撲關係如下 使用的軟件爲 mysql+keepalived 安裝軟件前準備 yum -y install epel-release keepalived(添加epel源，安裝keepalived) 安裝mysql的yum源 rpm -Uvh https://repo.mysql.com//mysql80-community-release-el7-3.noarc

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