主：192.168.1.20
主节点在 my.ini 文件新增配置
server-id=1
log-bin=mysql-bin重启服务
net stop mysql
net start mysql为从节点创建账号同步账号，授权
CREATE USER 'slave'@'%' IDENTIFIED BY 'appblog.cn';
GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'slave'@'%';
-- GRANT ALL PRIVILEGES ON *.* TO 'slave'@'%';
flush privileges; 查看主节点状态
show master status;从：192.168.1.21
my.ini 配置中新增配置
server-id=2
log-bin=mysql-slave-bin
relay_log=edu-mysql-relay-bin重启 mysql 服务
配置从节点，从主同步数据
change master to master_host='192.168.1.20', master_user='slave', master_password='appblog.cn', master_port=3306, master_log_file='mysql-bin.000001', master_log_pos=0, master_connect_retry=30;开启 slave
start slave;查看从节点状态
show slave status;若看到：
Slave_IO_State: Waiting for master
Master_Host: 192.168.1.20
...
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: appblog则说明从库已从主库，同步出 appblog 数据库，库中的表及表中内容已自动同步完成
