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MYSQL 三节点复制

原创 Linux操作系统 作者:wshxgxiaoli 时间:2012-07-05 14:31:30 0 删除 编辑
1.环境准备:
安装好三台MYSQL服务器。
A    192.168.1.8
B    192.168.1.88
C    192.168.1.188

环形结构:  192.168.1.8主     192.168.1.88从
         192.168.1.88主   192.168.1.188从
         192.168.1.188主  192.168.1.8从

2.更改配置文件/etc/my.cnf
增加以下内容:
log-bin=mysql-bin
slave-skip-errors=all
log-slave-updates
skip-name-resolve
在配置文件中修改: server-id    分别是  server-id=1  2  3

3.重启三个节点的MYSQL。
/home/mysql/mysql/support-files/mysql.server restart

4.添加复制用户。在每个节点都如此操作。
 grant replication slave on *.* to 'replication'@'%' identified by 'replication';

 grant all privileges on *.* to replication@'%' identified by 'replication';

4.配置复制进程:
(1) 192.168.1.8主  192.168.1.88从配置
A节点:show master status
    -> ;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000006 |      107 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
B节点:
CHANGE MASTER TO MASTER_HOST='192.168.1.8',MASTER_PORT=3306,MASTER_USER='replication',MASTER_PASSWORD='replication',MASTER_LOG_FILE='mysql-bin.000006',MASTER_LOG_POS=107;

start slave;

show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.88
                  Master_User: replication
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000006
          Read_Master_Log_Pos: 107
               Relay_Log_File: localhost-relay-bin.000015
                Relay_Log_Pos: 253
        Relay_Master_Log_File: mysql-bin.000006
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          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: 107
              Relay_Log_Space: 559
              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
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error:
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 2
1 row in set (0.00 sec)

(2)192.168.1.88主  192.168.1.188从配置
B节点:show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000006 |      107 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)

C节点配置:
CHANGE MASTER TO MASTER_HOST='192.168.1.8',MASTER_PORT=3306,MASTER_USER='replication',MASTER_PASSWORD='replication',MASTER_LOG_FILE='mysql-bin.000006',MASTER_LOG_POS=107;

start slave;

show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.88
                  Master_User: replication
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000006
          Read_Master_Log_Pos: 107
               Relay_Log_File: localhost-relay-bin.000017
                Relay_Log_Pos: 253
        Relay_Master_Log_File: mysql-bin.000006
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          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: 107
              Relay_Log_Space: 559
              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
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error:
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 2
1 row in set (0.00 sec)

(3)192.168.1.188主  192.168.1.8从配置
C节点:show master status
    -> ;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000005 |      107 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)

A节点配置:
CHANGE MASTER TO MASTER_HOST='192.168.1.8',MASTER_PORT=3306,MASTER_USER='replication',MASTER_PASSWORD='replication',MASTER_LOG_FILE='mysql-bin.000005',MASTER_LOG_POS=107;

start slave;

show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.88
                  Master_User: replication
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000006
          Read_Master_Log_Pos: 107
               Relay_Log_File: localhost-relay-bin.000015
                Relay_Log_Pos: 253
        Relay_Master_Log_File: mysql-bin.000006
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB:
          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: 107
              Relay_Log_Space: 559
              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
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error:
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 2
1 row in set (0.00 sec)

验证:
只要表结构一样,引擎不一样也是可以同步的。
引擎也可以同步,就是你改动第二节点的引擎,第一节点也是会同步成相同的引擎的。

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