基本配置
主数据库
配置文件，修改server_id=1
建立账户，供slave同步使用
GRANT REPLICATION SLAVE ON *.* to 'repl'@'192.168.56.3' identified by 'repl';
Mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000005 | 261 | | |
+------------------+----------+--------------+------------------+
记录下 FILE 及 Position 的值，在后面进行从服务器操作的时候需要用到。
从数据库
配置文件，修改server_id=2
执行同步SQL语句，地址为主数据库地址，和主数据库上的用户名和密码
change master to
master_host='192.168.56.2',
master_user='repl',
master_password='repl',
master_log_file='mysql-bin.000005',
master_log_pos=261;
正确执行后启动Slave同步进程
start slave;
主从同步检查
mysql> show slave status\G
==============================================
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.56.2
Master_User: test
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000008
Read_Master_Log_Pos: 258
Relay_Log_File: Slave2-relay-bin.000003
Relay_Log_Pos: 404
Relay_Master_Log_File: mysql-bin.000008
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: 258
Relay_Log_Space: 561
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
==============================================
其中Slave_IO_Running 与 Slave_SQL_Running 的值都必须为YES，才表明状态正常。