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

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 status/G
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

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

01 MySQL> change master to master_host='192.168.1.202',master_user='replication',master_password='replication',master_log_file='MySQL-bin.000003',master_log_pos=374;
02 Query OK, 0 rows affected (0.05 sec)
03
04 MySQL> start slave;
05 Query OK, 0 rows affected (0.00 sec)
06
07 MySQL> show slave status/G
08 *************************** 1. row ***************************
09              Slave_IO_State: Waiting for master to send event
10                 Master_Host: 192.168.1.202
11                 Master_User: replication
12                 Master_Port: 3306
13               Connect_Retry: 60
14             Master_Log_File: MySQL-bin.000003
15         Read_Master_Log_Pos: 374
16              Relay_Log_File: MySQL-master1-relay-bin.000002
17               Relay_Log_Pos: 235
18       Relay_Master_Log_File: MySQL-bin.000003
19            Slave_IO_Running: Yes
20           Slave_SQL_Running: Yes
21             Replicate_Do_DB:
22         Replicate_Ignore_DB:
23          Replicate_Do_Table:
24      Replicate_Ignore_Table:
25     Replicate_Wild_Do_Table:
26 Replicate_Wild_Ignore_Table:
27                  Last_Errno: 0
28                  Last_Error:
29                Skip_Counter: 0
30         Exec_Master_Log_Pos: 374
31             Relay_Log_Space: 235
32             Until_Condition: None
33              Until_Log_File:
34               Until_Log_Pos: 0
35          Master_SSL_Allowed: No
36          Master_SSL_CA_File:
37          Master_SSL_CA_Path:
38             Master_SSL_Cert:
39           Master_SSL_Cipher:
40              Master_SSL_Key:
41       Seconds_Behind_Master: 0
42 1 row in set (0.00 sec)