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MySQL主主同步配置

Jun 07, 2016 pm 03:07 PM
linuxmysqlSynchronizeCommunityEnterConfiguration

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 实战环境介绍: 服务器名 IP 系统 MySQL odd.example.com 192.168.1.116 rhel-5.8 5.5.16 even.example.com 192.168.1.115 rhel-5.8 5.5.16 假设要同步的库是 db_rocky ㈠ 创建同步用户 在 ODD上 [pl

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

    实战环境介绍:

    服务器名 IP 系统 MySQL

    odd.example.com 192.168.1.116 rhel-5.8 5.5.16

    even.example.com 192.168.1.115 rhel-5.8 5.5.16

    假设要同步的库是 db_rocky

    ㈠ 创建同步用户

    在 ODD上

    [plain]

    mysql> grant replication slave on *.* to 'water'@'192.168.1.115' identified by 'cdio2010';

    Query OK, 0 rows affected (0.00 sec)

    mysql> flush privileges;

    Query OK, 0 rows affected (0.00 sec)

    在 EVEN 上

    [plain]

    mysql> grant replication slave on *.* to 'water'@'192.168.1.116' identified by 'cdio2010';

    Query OK, 0 rows affected (0.11 sec)

    mysql> flush privileges;

    Query OK, 0 rows affected (0.00 sec)

    ㈡ 修改 /etc/my.cnf 配置文件,为其添加以下内容:

    在 ODD 上

    [plain]

    [mysqld]

    binlog-do-db=db_rocky #需要记录进制日志的数据库。如果有多个数据库可用逗号分隔,或者使用多个binlog-do-db选项

    binlog-ignore-db=mysql #不需要记录进制日志的数据库。如果有多个数据库可用逗号分隔,或者使用多个binlog-do-db选项

    replicate-do-db=db_rocky #需要进行同步的数据库。如果有多个数据库可用逗号分隔,或者使用多个replicate-do-db选项

    replicate-ignore-db=mysql,information_schema #不需要同步的数据库。如果有多个数据库可用逗号分隔,或者使用多个replicate-ignore-db选项

    #同步参数:

    #保证slave挂在任何一台master上都会接收到另一个master的写入信息

    log-slave-updates

    sync_binlog=1

    auto_increment_offset=1

    auto_increment_increment=2

    slave-skip-errors=all #过滤掉一些没啥大问题的错误

    在 EVEN 上

    [plain]

    [mysqld]

    server-id=2 #设置一个不同的id、注意这里在my.cnf里面有个默认值是 1 、把默认值改掉、而不能新增一个server-id

    binlog-do-db=db_rocky #需要记录二进制日志的数据库。如果有多个数据库可用逗号分隔,或者使用多个binlog-do-db选项

    binlog-ignore-db=mysql #不需要记录进制日志的数据库。如果有多个数据库可用逗号分隔,或者使用多个binlog-ignore-db选项

    #需要同步的数据库

    replicate-do-db=db_rocky #需要进行同步的数据库。如果有多个数据库可用逗号分隔,或者使用多个binlog-do-db选项

    replicate-ignore-db=mysql,information_schema #不需要同步的数据库。如果有多个数据库可用逗号分隔,或者使用多个binlog-do-db选项

    #同步参数:

    #保证slave挂在任何一台master上都会接收到另一个master的写入信息

    log-slave-updates

    sync_binlog=1

    auto_increment_offset=2

    auto_increment_increment=2

    slave-skip-errors=all #过滤掉一些没啥大问题的错误

    ㈢ 分别重启服务器ODD  EVEN 上的mysql服务

    ㈣ 分别在服务器ODD、EVEN 上查看做为主服务器状态

    在ODD

    [plain]

    mysql> flush tables with read lock;#防止进入新的数据

    Query OK, 0 rows affected (0.00 sec)

    mysql> show master status\G;

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

    File: mysql-bin.000007

    Position: 438

    Binlog_Do_DB: db_rocky

    Binlog_Ignore_DB: mysql

    1 row in set (0.00 sec)

    在EVEN

    [plain]

    mysql> flush tables with read lock;

    Query OK, 0 rows affected (0.00 sec)

    mysql> show master status\G;

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

    File: mysql-bin.000008

    Position: 107

    Binlog_Do_DB: db_rocky

    Binlog_Ignore_DB: mysql

    1 row in set (0.01 sec)

    ㈤ 分别在服务器ODD、EVEN上用change master语句指定同步位置 :

    在ODD

    [plain]

    mysql> change master to master_host='192.168.1.115',master_user='water',master_password='cdio2010',

    -> master_log_file='mysql-bin.000008',master_log_pos=107;

    Query OK, 0 rows affected (0.05 sec)

    在EVEN

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MySQL主主同步配置

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