mysql 5.7.10 下互为主备配置

mysql安装方法这里就不在介绍，网上有很多教程

环境介绍：

A主机: win2008_x64+mysql5.7.10 64位，ip192.168.7.180

B主机: win2008_x64+mysql5.7.10 64位，ip192.168.7.181

1、首先配置my.ini文件，两台主机都需要配置（一般在mysql安装的目录下面）

A主机：my.ini,[mysqld]节点下添加如下信息

log-bin=mysql-bin 
server-id=181

B主机：my.ini,[mysqld]节点下添加如下信息

log-bin=mysql-bin 
server-id=180

添加如上配置后都需要重起两台主机的mysql服务。

2、创建Replication用户

A主机上执行如下命令：

create user 'repl'@'%' identified by '12345678';

GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';

grant replication client,replication slave on *.* to 'repl'@'192.168.7.181' identified by '12345678';

B主机上执行如下命令：

create user 'repl'@'%' identified by '12345678';

GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';

grant replication client,replication slave on *.* to 'repl'@'192.168.7.180' identified by '12345678'

3、查看两台主机的mysql bin log位置

首先将两台主机mysql中的表锁定

FLUSH TABLES WITH READ LOCK;

FLUSH TABLES WITH READ LOCK; 代表锁定表，禁止所有操作。防止bin log位置发生变化。

查看A主机bin log位置

SHOW MASTER STATUS;

A主机结果


查看B主机的bin log位置

SHOW MASTER STATUS;

B主机结果

记录下A主机结果，和B主机结果
然后再解除两台主机mysql table的锁定

Unlock Tables;

4、开始设置 Slave Replication

A主机执行如下命令：

STOP SLAVE;
CHANGE MASTER TO MASTER_HOST = '192.168.7.181', MASTER_USER = 'repl', 
MASTER_PASSWORD = '12345678', MASTER_LOG_FILE = 'mysql-bin.000001',
 MASTER_LOG_POS = 467; 
START SLAVE;

B主机执行如下命令：

STOP SLAVE;
CHANGE MASTER TO MASTER_HOST = '192.168.7.180', MASTER_USER = 'repl', 
MASTER_PASSWORD = '12345678', MASTER_LOG_FILE = 'mysql-bin.000001',
 MASTER_LOG_POS = 315; 
START SLAVE;

5、查看两台主机是否设置成功

Show Slave Status;

如果两台主机Slave_IO_Running 和Slave_SQL_Running都为YES代表设置成功。可以进行数据库操作了