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;