标题: MySQL复制实现互为主从双机热备配置方法 [打印本页] 作者: 思考的牛 时间: 2011-5-27 16:49 标题: MySQL复制实现互为主从双机热备配置方法 A B 为两台MySQL服务器,均开启二进制日志,数据库版本 5.5.2
一、服务器参数
[A 服务器]
log-bin=mysql-bin
server-id = 1
binlog-do-db = test
binlog-ignore-db = mysql
replicate-do-db = test
replicate-ignore-db = mysql
master-host = 192.168.1.100
master-user = backup
master-password = 123
master-port = 3306
master-connect-retry = 10
#sync-binlog = 1
[B 服务器]
log-bin=mysql-bin
server-id = 2
binlog-do-db = test
binlog-ignore-db = mysql
replicate-do-db = test
replicate-ignore-db = mysql
master-host = 192.168.1.101
master-user = backup
master-password = 123
master-port = 3306
master-connect-retry = 10
#sync-binlog = 1
二、操作步骤
# A B 服务器停止同步
STOP SLAVE;
# A B 服务器清空Master日志
RESET MASTER;
# A 服务器授权同步账户
GRANT REPLICATION SLAVE ON *.* TO ‘backup’@'%’ IDENTIFIED BY ’123′;
FLUSH PRIVILEGES;
# A B 服务器锁表(锁表状态下不能终止mysql进程,否则会失败)
FLUSH TABLES WITH READ LOCK;
# 如果使用SSH,需要重新开启,复制数据库文件。
tar -cvf /tmp/mysql-data.tar /usr/local/mysql/data
tar -xvf /tmp/mysql-data.tar /usr/local/mysql/data
# 查看 A 服务器主机状态(记录二进制开始文件,位置)
SHOW MASTER STATUS;
# B 服务器锁表(锁表状态下不能终止mysql进程,否则会失败)
FLUSH TABLES WITH READ LOCK;
# 修改 B 服务器配置
CHANGE MASTER TO MASTER_HOST=’192.168.1.100′,MASTER_USER=’backup’, MASTER_PASSWORD=’123′,MASTER_LOG_FILE=’binlog.000001′,MASTER_LOG_POS=107;
# 开启 B 服务器同步进程
START SLAVE;
# 查看 B 服务器同步状态是否正常
SHOW SLAVE STATUS;
# 查看 B 服务器主机(记录二进制开始文件,位置)
SHOW MASTER STATUS;
# 修改 A 服务器配置
CHANGE MASTER TO MASTER_HOST=’192.168.1.101′,MASTER_USER=’backup’,MASTER_PASSWORD=’123′,MASTER_LOG_FILE=’binlog.000001′,MASTER_LOG_POS=107;
# 开启 A 服务器同步进程
START SLAVE;
# 分别查看 A B 服务器同步状态,确定是否成功
SHOW SLAVE STATUS;SHOW MASTER STATUS;
# 解锁 A B 服务器
UNLOCK TABLES;
# 数据测试分别在 A B 服务器上创建表插入数据测试
USE test;
CREATE TABLE `test_aa` (
`id` int(10) unsigned NOT NULL auto_increment,
`string` varchar(30) NOT NULL DEFAULT ’0′,
`time` datetime NOT NULL DEFAULT ’00-00-00 00:00:00′,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
INSERT INTO `test_log_1` VALUES (”, ‘test_1′, NOW());
SELECT * FROM `test_log_1`;
CREATE DATABASE `test_db_1` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;