mysql5.5主主复制架构

mysql5.5的主主复制

mysql的主主复制

1、环境的准备2台服务器

Server1: 192.168.0.11 系统为：redhat6.4

Server2:192.168.0.12 系统为：redhat6.4

设置主-主复制：

1、在两台服务器上各自建立一个具有复制权限的用户；

GRANT REPLICATION SLAVE ON *.* TO zzx'@'192.168.%.%' IDENTIFIED BY '123456';

FLUSH PRIVILEGES;

2、修改配置文件：

# 主服务器上

[mysqld]

server-id = 10

log-bin = mysql-bin

relay-log = relay-mysql

relay-log-index = relay-mysql.index

auto-increment-increment = 2

auto-increment-offset = 1

# 从服务器上

[mysqld]

server-id = 20

log-bin = mysql-bin

relay-log = relay-mysql

relay-log-index = relay-mysql.index

auto-increment-increment = 2

auto-increment-offset = 2

3、如果此时两台服务器均为新建立，且无其它写入操作，各服务器只需记录当前自己二进制日志文件及事件位置，以之作为另外的服务器复制起始位置即可

server1|mysql> SHOW MASTER STATUS\G

************************** 1. row ***************************

File: mysql-bin.000001

Position: 710

Binlog_Do_DB:

Binlog_Ignore_DB:

1 row in set (0.00 sec)

server2|mysql> SHOW MASTER STATUS\G

mysql> SHOW MASTER STATUS\G

*************************** 1. row ***************************

File: mysql-bin.000003

Position: 811

Binlog_Do_DB:

Binlog_Ignore_DB:

1 row in set (0.00 sec)

4、各服务器接下来指定对另一台服务器为自己的主服务器即可：

server1|mysql> CHANGE MASTER TO ...,MASTER_LOG_FILE='mysql-bin.000003', MASTER_LOG_POS=811

server2|mysql> CHANGE MASTER TO ...,MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=710