五四陈科学院-相信科学,分享技术.
    首页     归档     视频     关于     想找最新内容?
  • RSS
  • Blog
  • Archives
  • 多台slave的mysql Replication的配置

    2009-01-16 00:00:00 +0800

     5.1.24版本的配置请看:http://www.masalife.com/archives/173

    一、先修改服务器的配置文件

           1、Master服务器配置简单,修改my.cnf为:

           server-id       = 1

    log-bin

    set-variable=binlog-ignore-db=mysql

    2、slave1的配置加入

    server-id       = 2

    master-host = 172.16.20.135

    master-user = rep

    master-password = cnrep

    master-port = 3306

    log-bin

    set-variable=replicate-ignore-db=mysql

    set-variable=replicate-do-db=AliSMS

    set-variable=replicate-do-db=lcd

    set-variable=replicate-do-db=loginmanager

    set-variable=replicate-do-db=samis

    set-variable=replicate-do-db=sareport

    set-variable=replicate-do-db=syslog

    set-variable=replicate-do-db=web_speed

    log-slave-updates

    3、slave2服务器的配置

    server-id       = 3

    master-host = 172.16.20.3

    master-user = rep1

    master-password = cnrep

    master-port = 3306

    set-variable=replicate-ignore-db=mysql

    set-variable=replicate-do-db=AliSMS

    set-variable=replicate-do-db=lcd

    set-variable=replicate-do-db=loginmanager

    set-variable=replicate-do-db=samis

    set-variable=replicate-do-db=sareport

    set-variable=replicate-do-db=syslog

    set-variable=replicate-do-db=web_speed

     

    二、重启master数据库

     

    三、然后锁定master数据库的表:

    mysql>FLUSH TABLES WITH READ LOCK;

    四、在master数据库中添加用于slave1同步的用户,并赋予相关权限:

    mysql>GRANT REPLICATION SLAVE ON *.* TO rep@sa_cfengine1 IDENTIFIED BY 'cnrep';

    mysql>GRANT FILE,SELECT,REPLICATION SLAVE ON *.* TO rep@sa_cfengine1 IDENTIFIED BY 'cnrep';

     

    五、在slave1数据库中添加用于slave2同步的用户,并赋予相关权限:

    mysql>GRANT REPLICATION SLAVE ON *.* TO rep1@sa_cfengine2 IDENTIFIED BY 'cnrep';

    mysql>GRANT FILE,SELECT,REPLICATION SLAVE ON *.* TO rep1@sa_cfengine2 IDENTIFIED BY 'cnrep';

     

    六、同步数据库:

    方法很多,可以打包之后scp,再解压,由于sa_cfengine1到mysql master服务器通道打通了,切sa_cfengine2到sa_cfengine1通道也打了,故直接scp整个数据库目录即可。

    注意:此时要注意删除同步过来的日志文件,最好把与数据库无关的文件全删除(可以将非目录的文件全删了)。

     

    七、重启salve1的mysql,起来之后锁定表

     

    八、重启slave2的mysql,然后先后给slave1和master服务器的mysql表解锁

    mysql> UNLOCK TABLES;

     

    九、分别登录slave1和slave2的mysql,查看同步状态:

            mysql>SHOW SLAVE STATUS\G
    *************************** 1. row ***************************

                 Slave_IO_State: Waiting for master to send event

                    Master_Host: 172.16.20.135

                    Master_User: rep

                    Master_Port: 3306

                  Connect_Retry: 60

                Master_Log_File: mysql-bin.000051

            Read_Master_Log_Pos: 13856842

                 Relay_Log_File: sa_cfengine1-relay-bin.000013

                  Relay_Log_Pos: 624419

          Relay_Master_Log_File: mysql-bin.000051

               Slave_IO_Running: Yes

              Slave_SQL_Running: Yes

                Replicate_Do_DB: AliSMS,lcd,loginmanager,samis,sareport,syslog,web_speed

            Replicate_Ignore_DB: mysql,mysql

             Replicate_Do_Table:

         Replicate_Ignore_Table:

        Replicate_Wild_Do_Table:

    Replicate_Wild_Ignore_Table:

                     Last_Errno: 0

                     Last_Error:

                   Skip_Counter: 0

            Exec_Master_Log_Pos: 13856842

                Relay_Log_Space: 624419

                Until_Condition: None

                 Until_Log_File:

                  Until_Log_Pos: 0

             Master_SSL_Allowed: No

             Master_SSL_CA_File:

             Master_SSL_CA_Path:

                Master_SSL_Cert:

              Master_SSL_Cipher:

                 Master_SSL_Key:

          Seconds_Behind_Master: 0

    1 row in set (0.01 sec)

    注意标注为红色的地方,两个都是yes说明一切正常,否则要检查原因,可以看error log查找原因后做相应的处理。

     

    十、测试:

           在master数据库中update在同步列表中的一个表的一个字段,如果slave服务器的做相应改变,则测试用过。


    原创文章如转载,请注明:转载自五四陈科学院[http://www.54chen.com]

    捐款订阅54chen
    捐赠说明

    Posted by 54chen 2009-01-16 00:00:00 +0800 linux

    « yahoo、taobao云计算利器之“云”端的小飞象—Hadoop 如何解决时间同步引起oracle 不稳定的问题 »

    Copyright © 2017 - 54chen -