Mysql（centos7） 主从搭建

1.1 搭建两台MySQL

192.168.1.30 master

192.168.1.31 slave

1.1 关闭防火墙

systemctl stop firewalld

1.1 修改主服务器（master）配置： 

vim /etc/my.cnf

[mysqld]

log-bin=mysql-bin

server-id=111

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES　

1.1 修改从服务器（slave）配置：

vim /etc/my.cnf

[mysqld]

server-id=112

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

1.1 重启主从两个mysql服务

         service mysqld restart

1.1 在主库建一个专用来备份的 MySQL 账户

grant replication slave,reload,super on *.* to 'backup'@'192.168.1.31' identified by 'password';
flush privileges;
show master status;

　　

backup：账号名
password：密码
192.168.1.31：从库IP地址

1.1 修改从库配置

change master to master_host='192.168.1.30',

master_user='backup',

master_password='password',

master_log_file='mysql-bin.000001',

master_log_pos=425;　

　

1.1 启动查看

start slave ;

show slave status\G;