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mysql实现master

Jun 07, 2016 pm 03:20 PM
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欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 mysql中实现master-slave同步: 第一步:分别在两台机子上各装一个mysql (本人测试机系统为unbutu,mysql5.5),如只有一台机器,需使mysql的端口不同(3306,3307)。 第二步:找到mysql 的my.cnf文件

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

  mysql中实现master-slave同步:

  第一步:分别在两台机子上各装一个mysql (本人测试机系统为unbutu,mysql5.5),如只有一台机器,需使mysql的端口不同(3306,3307)。

  第二步:找到mysql 的my.cnf文件。

  $cd /etc/mysql  进入该目录。

  $ vim my.cnf  如是只读,且不允许修改。需用$ sudo vim my.cnf

  第三步:修改my.cnf 中的配置项:

  1 需做如下操作:

  将bind-address=127.0.0.1 改为 bind-address=0.0.0.0

  将#server-id=1

  #log_bin=/var/log/mysql/mysql-bin.log

  的注释(#)去掉。

  添加:character-set-server=utf-8 #保证编码一致。

  填加完成后,保存并退出即可。

  第四步:

  用root权限登录并创建slave数据库服务器用户:

  $mysql -uroot -p

  mysql>grant replication slave,replication client on *.* to liang@'192.168.10.21' indntified by 'liang';

  mysql>grant replicatin slave on *.* to liang@'192.168.10.21' indntified by 'liang';

  第五步:重启mysql服务。

  $ sudo /etc/init.d/mysql restart  #如不能正常启动,请检查my.cnf配置项以及mysql 的错误日志。

  错误日志位置:/var/log/mysql/error.log

  到此已将master配置完毕。

  slave配置。

  第六步:修改slave的my.cnf配置文件。

  如下:

  bind-address=0.0.0.0

  server-id               = 2

  master-host           = 192.168.10.24

  master-user           = liang

  master-password    = liang

  master-port           = 3306

  log_bin                 = /var/log/mysql/mysql-bin.log

  log-slave-updates

  skip-slave-start

  character-set-server=utf8

  保存并退出.

  第七步:重启slave的mysql服务器(同第五步)

  本人在重启时出现错误,不能启动mysql.经查日志发现:如下错误(暂略)由于错误日志不在本机。以后补上,嘿嘿。

  故将配置改为如下:

  server-id               = 2

  #master-host           = 192.168.10.24

  #master-user           = liang

  #master-password    = liang

  #master-port           = 3306

  log_bin                 = /var/log/mysql/mysql-bin.log

  log-slave-updates

  skip-slave-start

  character-set-server=utf8

  保存并重启mysql,ok.

  进入myslq,并在mysql中运行:

  slave start;

  第八步:在master中执行:

  mysql>show master status\G;

  显示内容为如下:

  第九步:在slave中,运行如下命令:

  mysql>change master to master_host='192.168.10.24', master_user='liang', master_password='liang', master_log_file='mysql-bin.000007', master_log_pos=170;

  其中master_log_file,master_log_pos 为第八步中所显示的内容 .

  mysql>slave start;

  第十步:在master的中执行如下命令:

  mysql>show slave status\G;

  请查看Slave_IO_Running:YES

  Slave_SQL_Running:YES

  ok ,配置成功。

  请出现Slave_IO_Running:Connectiong,请查看下面的错误信息或查看日志文件。

  第十一步:测试

  在主数据库中创建数据库:

  mysql>create database ccc;

  在slave中查看,如有ccc数据库,则说明同步成功。

  同时可测创建表,修改表,添加记录等。一切OK.

  最后谢谢网络上的朋友。在你们的帮助下,顺得完成。

mysql实现master

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