1、先配置出一个主从出来参考上一篇mysql主从

3台mysql服务器;1主(2的主),2主(1的从3的主),3从

1主不用修改任何配置

2主

vim /etc/my.cnf

开启binlog

添加log_slave_updates=1

重启数据库

授权

grant replication slave on *.* to [email protected]'10.0.0.%' identified by 'oldboy123';

3从

vim /etc/my.cnf

server id=16

启动配置

mysql

CHANGE MASTER TO  

MASTER_HOST='10.0.0.15',

MASTER_PORT=3306,

MASTER_USER='rep',

MASTER_PASSWORD='oldboy123',

MASTER_LOG_FILE='oldboy-bin.000017',

MASTER_LOG_POS=405;

启动slave

start slave;

查看

show slave status\G

centos7.2mysql级联配置


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