教你在MySQL 5.0以上版本中配置主从库

下面直接记录下配置主从库的操作:(本文用的是mysql5.0以上)


1.在主库建立要同步的数据库,建立主库的帐号和修改主库配置
首先连接上数据库
mysql -S /tmp/mysql-3108.sock
创建测试同步的数据库,"create database sinatest;"
然后建立负责同步的用户
grant all on *.* to ali@"%" Identified by "abc111";


然后修改/data2/ali/mysql3308/my.cnf主库的配置,增加
binlog-do-db=sinatest

2.修改从库配置
然后修改/data2/ali/mysql3309/my.cnf从库的配置,增加
master-host=127.0.0.1
master-user=ali
master-password=abc111
master-port=3308
server-id=2
master-connect-retry=60
replicate-do-db=sinatest
log-slave-updates

3.重启mysql

先杀死mysql进程,然后再启动
/usr/local/mysql/bin/mysqld_safe --defaults-file=/data2/ali/mysql3308/my.cnf --user=root &
/usr/local/mysql/bin/mysqld_safe --defaults-file=/data2/ali/mysql3309/my.cnf --user=root &

4.在主库创建数据表,检查从库是否同步正确
进入主库,创建数据表
mysql -S /tmp/mysql-3108.sock
CREATE TABLE if not exists ali_test_00 (
`id` int(11) unsigned NOT NULL auto_increment,
`my_id` varchar(16) binary NOT NULL default '',
`my_title` varchar(96) binary NOT NULL default '',
`status` int(11) unsigned NOT NULL default '1',
PRIMARY KEY (`id`),
KEY `my_id` (`my_id`)
) TYPE=MyISAM;

insert into ali_test_00 values (null,32,"aliwwww",1);
insert into ali_test_00 values (null,32,"aliwwww",1);

然后检查从库是否有该表和表中是否有数据

5.检查主从库常用命令

SHOW SLAVE STATUS;
SHOW MASTER STATUS;
slave stop;
slave start;



CHANGE MASTER TO
MASTER_HOST='127.0.0.1',
MASTER_USER='ali',
MASTER_PASSWORD='abc111',
MASTER_LOG_FILE='mysql-bin.000003',
MASTER_LOG_POS=0;