mysql主从架构搭建

1.配置文件，开启二进制日志

　　vim /etc/my.cnf

在mysql下增加如下内容

server-id=

log-bin=mysql-bin

relay-log=mysql-relay

2.登录到本地mysql上，给从slave主机授权，同步日志的权限

 mysql -uroot -p

 grant replication slave on *.* to 'tom'@'%' identified by '';
 flush privileges;    #刷新权限

 show master status;

 stop slave;
 change master to
 master_host='ip',
 master_user='tom',
 master_password='',
 master_log_file='mysql-bin.000001',
 master_log_pos=;

 start slave;

 show slave status \G;  # 查看slave状态