mysql 主从
mysql 安装在这里就不说了,可以参考我的安装笔记
http://www.cnblogs.com/vick51/p/7048417.html
下面直接开始配置mysql 主从
mysql 主从环境介绍
Mysql Master 系统:Centos6.* mysql version mysql-5.7.17 IP:192.168.1.223
Mysql Slave 系统:Centos6.* mysql version mysql-5.7.17 IP:192.168.1.224
开始配置 mysql 主从:
1、在master上创建主从用户 [root@m3 ~]# mysql -uroot -pyou_password mysql> grant replication slave on *.* to vick@'192.168.1.224' identified by 'vick_slave'; mysql> flush privileges; mysql> show master status\G *************************** 1. row *************************** File: mysql-bin.000002 Position: 997 Binlog_Do_DB: Binlog_Ignore_DB: Executed_Gtid_Set: 89a442a1-511d-11e7-b608-000c29789b2f:1-4 1 row in set (0.00 sec) 2、在slave上配置从库 vim /etc/my.cnf server_id = 2 ## 注意数据库的唯一ID不能一样 [root@m4 ~]# mysql -uroot -pwangkai mysql> change master to \ -> master_host='192.168.1.223', \ -> master_user='vick',\ -> master_password='vick_slave', \ -> master_port=3306, \ -> master_log_file='mysql-bin.000002',\ -> master_log_pos=997; Query OK, 0 rows affected, 2 warnings (0.02 sec) mysql> start slave; Query OK, 0 rows affected (0.00 sec) mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.223 Master_User: vick Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000002 Read_Master_Log_Pos: 997 Relay_Log_File: relay.000003 Relay_Log_Pos: 320 Relay_Master_Log_File: mysql-bin.000002 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: information_schema.%,performance_schema.% Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 997 Relay_Log_Space: 683 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: 2 Master_UUID: 89a442a1-511d-11e7-b608-000c29789b2f Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates 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: 5ee0a7e0-51bf-11e7-93a9-000c2923b43c:1-2 Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) 当这两项为yes 说明显示正常 Slave_IO_Running: Yes Slave_SQL_Running: Yes
测试
好记性不如烂笔头