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第一步：开启所有MYSQL服务器的BIN日志，每台服务器设置一个唯一的server-id的值(默认是1，一般取IP最后一段)
修改主服务器(master)的my.cnf
[mysqld] log-bin=mysql-bin server-id=91
修改从服务器(slave)的my.cnf
[mysqld] log-bin=mysql-bin server-id=92
第二步：重启主和从服务器
service mysqld restart
第三步：在主服务器上创建一个用来同步数据的帐号(如下边的test_slave，%表示所有客户端都可能连)
GRANT replication slave ON *.* TO ‘test_slave‘@‘%‘ IDENTIFIED BY ‘123456‘;
第四步：登录主服务器的mysql，查询master的状态
show master status
见到如下所示
+------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000025 | 700 | | | +------------------+----------+--------------+------------------+
第五步：配置从服务器状态
stop slave; change master to master_host=‘192.168.1.91‘, master_user=‘test_slave‘, master_password=‘123456‘, master_log_file=‘mysql-bin.000025‘, master_log_pos=700; start slave;
解释：
MASTER_HOST=‘主服务器的IP地址‘,
MASTER_USER=‘主服务器上用于同步数据的账号‘,
MASTER_PASSWORD=‘同步的账号的密码‘,
MASTER_LOG_FILE=‘bin日志的文件名‘,
MASTER_LOG_POS=bin日志中的position的值;
第六步：查看从服务器状态
show slave status\G
出现
*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.91 Master_User: slave Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000025 Read_Master_Log_Pos: 700 Relay_Log_File: bogon-relay-bin.000002 Relay_Log_Pos: 342 Relay_Master_Log_File: mysql-bin.000025 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: 700 Relay_Log_Space: 498 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: 1 1 row in set (0.00 sec)
如果Slave_IO_Running: Yes Slave_SQL_Running: Yes代表成功
一般出现这句Slave_IO_State: Waiting for master to send event 也代表成功
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原文地址：http://www.cnblogs.com/chenqionghe/p/4305229.html
