MySQL互为主从配置

MySQL-VIP：192.168.1.200 

2 MySQL-master1：192.168.1.201 

3 MySQL-master2：192.168.1.202     

4   

5 OS版本：CentOS 5.4 

6 MySQL版本：5.0.89 

7 Keepalived版本：1.1.20

　一、MySQL master-master配置

　　1、修改MySQL配置文件

　　两台MySQL均如要开启binlog日志功能，开启方法：在MySQL配置文件[MySQLd]段中加上log-bin=MySQL-bin选项

　　两台MySQL的server-ID不能一样，默认情况下两台MySQL的serverID都是1，需将其中一台修改为2即可

　　2、将192.168.1.201设为192.168.1.202的主服务器

　　在192.168.1.201上新建授权用户

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01 MySQL> grant replication slave on *.* to replication@% identified by replication; 

02 Query OK, 0 rows affected (0.00 sec)     

03   

04 MySQL> show master status; 

05 +------------------+----------+--------------+------------------+ 

06 | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | 

07 +------------------+----------+--------------+------------------+ 

08 | MySQL-bin.000003 |      374 |              |                  | 

09 +------------------+----------+--------------+------------------+ 

10 1 row in set (0.00 sec) 

11 　　在192.168.1.202上将192.168.1.201设为自己的主服务器 

12   

13 MySQL> change master to master_host=192.168.1.201,master_user=replication,master_password=replication,master_log_file=MySQL-bin.000003,master_log_pos=374; 

14 Query OK, 0 rows affected (0.05 sec)     

15   

16 MySQL> start slave; 

17 Query OK, 0 rows affected (0.00 sec)     

18   

19 MySQL> show slave statusG 

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

21              Slave_IO_State: Waiting for master to send event 

22                 Master_Host: 192.168.1.201 

23                 Master_User: replication 

24                 Master_Port: 3306 

25               Connect_Retry: 60 

26             Master_Log_File: MySQL-bin.000003 

27         Read_Master_Log_Pos: 374 

28              Relay_Log_File: MySQL-master2-relay-bin.000002 

29               Relay_Log_Pos: 235 

30       Relay_Master_Log_File: MySQL-bin.000003 

31            Slave_IO_Running: Yes 

32           Slave_SQL_Running: Yes 

33             Replicate_Do_DB: 

34         Replicate_Ignore_DB: 

35          Replicate_Do_Table: 

36      Replicate_Ignore_Table: 

37     Replicate_Wild_Do_Table: 

38 Replicate_Wild_Ignore_Table: 

39                  Last_Errno: 0 

40                  Last_Error: 

41                Skip_Counter: 0 

42         Exec_Master_Log_Pos: 374 

43             Relay_Log_Space: 235 

44             Until_Condition: None 

45              Until_Log_File: 

46               Until_Log_Pos: 0 

47          Master_SSL_Allowed: No 

48          Master_SSL_CA_File: 

49          Master_SSL_CA_Path: 

50             Master_SSL_Cert: 

51           Master_SSL_Cipher: 

52              Master_SSL_Key: 

53       Seconds_Behind_Master: 0 

54 1 row in set (0.00 sec)

　　3、将192.168.1.202设为192.168.1.201的主服务器

　　在192.168.1.202上新建授权用户

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01 MySQL> grant replication slave on *.* to replication@% identified by replication; 

02 Query OK, 0 rows affected (0.00 sec)     

03   

04 MySQL> show master status; 

05 +------------------+----------+--------------+------------------+ 

06 | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | 

07 +------------------+----------+--------------+------------------+ 

08 | MySQL-bin.000003 |      374 |              |                  | 

09 +------------------+----------+--------------+------------------+ 

10 1 row in set (0.00 sec)

　　在192.168.1.201上，将192.168.1.202设为自己的主服务器

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