用的是我们开发用的库，部署在测试环境，测试环境的mysql版本居然是5.1的。
1.主服务器配置
cd /etc,找到my.cnf，然后再这个配置文件加上复制要用的配置
server-id = 1 log-bin=mysql-bin binlog-do-db=wx
主服务器需要一个独一无二的server id，log-bin表示启用二进制日志，binlog-do-db表示选择记录日志的数据库
2.从机配置
打开my.ini，加上和服务器类似的配置
server-id=2 log-bin=mysql-bin replicate-do-db=wx
3.将主机上的wx数据库拷给从机。这步一定要执行，不然后面一定会报错。我就是忽略了这一步，导致试了好几次都没有成功！当然，这一步可以用任何方法做，用工具，用mysqldump后从机执行都可以。
4.主机上建复制账号
主机的mysql命令行下执行如下命令，建一个用来复制的账号，和密码
grant replication slave on *.* to 'replication'@'%' identified by '123';
然后查主机的状态
mysql> show master status\G
*************************** 1. row ***************************
File: mysql-bin.000003
Position: 256
Binlog_Do_DB: wx
Binlog_Ignore_DB:
1 row in set (0.00 sec)
Position和File都是后面有用的
5.从机关联主机操作
从机上执行关联主机的命令，并重启从机。
change master to master_host = '192.168.146.120', master_user = 'replication', master_password = '123', master_log_file = 'mysql-bin.000003', master_log_pos = 256; start slave;
6.验证操作
主机上wx库找张表，插入一条语句，从机立刻复制过来。
查看从机状态。
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.146.120
Master_User: replication
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 708
Relay_Log_File: CDYJY-LVSHENG1-relay-bin.000004
Relay_Log_Pos: 265
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: wx
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: 708
Relay_Log_Space: 588
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
Master_UUID:
Master_Info_File: D:\DevelopTools\DB\mysql-5.6.26-winx64\data\master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
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