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单机版的Mysql主从数据库配置

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Release: 2016-06-07 15:10:06
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环 境 mysql-5.0.22 解压版。(Copy 成两份 ,master,slave) windowsXP 一、Master的设置 1、配制my.ini [client] port = 3308 [mysqld] port =3308 server-id = 1 binlog-do-db=test1 ##要同步的数据库名为test1 log-bin =mysql-bin 然后在Console 执行: GR

环 境
mysql-5.0.22 解压版。(Copy 成两份 ,master,slave)
windowsXP
一、Master的设置
1、配制my.ini
   [client]
   port = 3308
   [mysqld]
    port           =3308
    server-id    = 1
    binlog-do-db=test1  ##要同步的数据库名为test1 
    log-bin    =mysql-bin

然后在Console 执行: GRANT FILE,SELECT,REPLICATION SLAVE ON *.* TO 'slaver1'@'127.0.0.1' IDENTIFIED BY 'slaver1pwd';
开一个新账号(用户名:slaver1 密码:slaver1pwd)并赋于权限 
运行Mysqld.exe,并创建新数据库test1,可在Console下输入:show master status\G查看状态!

   *************************** 1. row*****************
            File: mysql-bin.000305
            Position: 98
            Binlog_Do_DB: test1
            Binlog_Ignore_DB:
  
二、Slaver 的设置

1、配制my.ini
   [client]
   port        = 3309

   [mysqld]
   port        = 3309
   server-id       = 2

   master-host     =   127.0.0.1

   master-user     =   slaver1

   master-password =   slaver1pwd

   master-port     =  3308

   replicate-do-db=test1  ##要同步的数据库

   运行Slaver 的Mysqld.exe,在Console窗口执行 show slave status\G  查看状态,如下:

*************************** 1. row ***************************
             Slave_IO_State: Waiting for master to send event
                Master_Host: 127.0.0.1
                Master_User: slaver1
                Master_Port: 3308
              Connect_Retry: 60
            Master_Log_File: mysql-bin.000305
        Read_Master_Log_Pos: 98
             Relay_Log_File: ccf-3acf6017ef4-relay-bin.000005
              Relay_Log_Pos: 235
      Relay_Master_Log_File: mysql-bin.000305
           Slave_IO_Running: Yes
          Slave_SQL_Running: Yes

            Replicate_Do_DB: test1
        Replicate_Ignore_DB:
         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: 98
            Relay_Log_Space: 235
            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

 常见问题

1、SQL I/O Running:  no

      原因:用户名或密码不正确、slaver1的权限不够!

     如果正确的执行:GRANT FILE,SELECT,REPLICATION SLAVE ON *.* TO 'slaver1'@'127.0.0.1' IDENTIFIED BY 'slaver1pwd';  仍然显示SQL I/O Running:NO,可能是Master的用户管理中Slaver用户未选中REPLICATION Client (用Navicat-Manager User ->Slaver1 的右边可选列表 )

2、Slave_SQL_Running: NO

       原因:
       a.程序可能在slave上进行了写操作 
       b.slave机器重起后,事务回滚.

        解决方法:

        在Slaver的Console:

         2.1.停掉Slave服务

              mysql>slave stop
         2.2、查看Master的状态:(在Master上执行)
              show master status\G

         2.3、手工同步

mysql> change master to
> master_host='127.0.0.1',
> master_user='slaver1', 
> master_password='slaver1pwd', 
> master_port=3308,
> master_log_file='mysql-bin.000020',
> master_log_pos=98;
          2.4、重启slave

                mysql> slave start;

附录

       1、查看异常信息文件:一般在data(数据库存文件的存放位置)的文件夹中,后缀名为.err的文件

        2、show processlist\G  可以协助查看用户信息

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