主库ip 172.22.230.212
从库ip 172.22.230.213
数据库备份

mysqldump -uroot -p --databases xhjgame>xhjgame.sql

主库

>CREATE USER 'slave'@'172.22.230.213' IDENTIFIED BY '密码';
>GRANT REPLICATION SLAVE ON *.* TO 'slave'@'172.22.230.213';
>flush privileges;

> show master status

从库 注意两个值 mysql-bin.00058 和MASTER_LOG_POS

>CHANGE MASTER TO MASTER_HOST='172.22.230.212',  
MASTER_USER='slave', 
MASTER_PASSWORD='密码', 
MASTER_LOG_FILE='mysql-bin.000587',  MASTER_LOG_POS=0;

>start slave

>show slave status