简单的主从配置

复制配置
环境规范

1.一组主从里面,端口要一致，要求每一组复制的端口都是唯一的；

2.要求是每个实例上的server-id由IP最后一位加上端口号组成防止server-id一样；

3.主从尽可能是版本一致；

4.复制建一个专用复制帐号授予replication slave权限。

基本环境介绍
MySQL版本：MySQL 5.6.27

角色	Ip：port	Server-id	必备条件
Master	192.168.247.11	113308	启用log-bin主库上创建复制用户
Slave	192.168.247.12	123308

核心配置
Log-bin
Server-id
#禁掉gtid
Gtid_mode=off

主库备份数据从库恢复数据

#mysqldump -P3308 -S/tmp/mysql3308.sock  --master-data=2--single-transaction -A >3308db_full.sqll
#scp 3308db_full.sql 192.168.247.21:/tmp/
--single-transaction --不锁表
--master-data=2 --隐式的在备份文件中包含change语句

# mysql -S /tmp/mytest_3308.sock  </tmp/3308db_full.sql
--master 创建用户用于复制
grant replication slave on *.* to'repl'@'192.168.247.%' identified by '123456';
从库配置MySQL复制
--3308db_full.sql 文件中找到-- CHANGE MASTER TOMASTER_LOG_FILE='mybinlog.000003', MASTER_LOG_POS=252075;

#CHANGE MASTER TOMASTER_LOG_FILE='mybinlog.000007', MASTER_LOG_POS=120;
CHANGE MASTER TO  master_host='192.168.247.11',
master_user='repl',
master_password='123456',
master_port=3308,MASTER_LOG_FILE='mybinlog.000007', MASTER_LOG_POS=120;
#start slave;
#show slave status\G;
*************************** 1. row***************************
               Slave_IO_State: Waiting formaster to send event
                  Master_Host: 192.168.247.11
                  Master_User: repl
                  Master_Port: 3308
                Connect_Retry: 60
              Master_Log_File: mybinlog.000007
         Read_Master_Log_Pos: 415
               Relay_Log_File:mysql-relay-bin.000002
                Relay_Log_Pos: 577
       Relay_Master_Log_File: mybinlog.000007
             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: 415
              Relay_Log_Space: 750
              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: 113308
                  Master_UUID:4fe18743-af17-11e5-8344-000c29b69f06
             Master_Info_File:/data/mysql/mytest_3308/master.info
                    SQL_Delay: 0
         SQL_Remaining_Delay: NULL
     Slave_SQL_Running_State: Slave has read all relay log; waiting for theslave 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)
看见Slave_IO_Running: Yes，Slave_SQL_Running: [b]Yes说明复制配置成功[/b]