Master-Master(双主)

1、测试环境

Master/Slave                           Master1/Slave1

IP    192.168.1.13                          192.168.1.10

为了保持干净的环境：两边服务器

rm -rf /var/lib/mysql/*

service mysqld restart

IP:192.168.1.13

IP:192.168.1.10

2、主服务器授权

分别在Master/Slave和Master1/Slave1上创建一个用户并授予相应权限。

mysql> grant replication slave on *.* to repli@'192.168.1.13′ identified by '123′;

mysql> grant replication slave on *.* to srepli@'192.168.41.189′ identified by '123′;

然后退出mysql控制台，停止mysql服务：

mysql> \q

3、配置Mysql主配置文件/etc/my.cnf

在/etc/my.cnf配置文件[mysqld]模块添加如下参数

Master/Slave(192.168.1.13):

[root@bogon ~]# vim /etc/my.cnf

server-id            = 1

log-bin              = mysql-bin

master-host          = 192.168.1.13

master-user          = srepli

master-password      = 123

master-port          = 3306

replicate-ignore-db  = mysql

Master1/Slave1(192.168.1.10):

[root@repli1 ~]# vim /etc/my.cnf

server-id         = 2

log-bin           = mysql-bin

master-host       = 192.168.1.10

master-user       = repli

master-password   = 123

master-port       = 3306

replicate-ignore-db     = mysql

4、查看同步状态

service mysqld restart //两边服务器执行

在Master1/Slave1上查看

mysql> show slave status\G

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

在master/Slave上查看：

mysql> show slave status\G

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

注：如果没有先启动的服务器Slave_IO_Running: NO mysql> slave stop; mysql> slave start; mysql> show slave status\G 两边服务器建库，建表，插入语句