Centos 配置 Mysql 主从双向同步
配置之前,请先阅读mysql主从复制: Mysql-主从复制
原:
主从环境:
主服务器:192.168.153.130
从服务器:192.168.153.131
1、从数据库创建同步用户,将主数据库作为从库
原从数据库192.168.153.131上执行
创建主从复制的帐号,将192.168.153.130作为从库:
mysql -u root -p
mysql> GRANT REPLICATION SLAVE,RELOAD,SUPER ON *.* TO backup@'192.168.153.130' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)
2、原主数据库上执行
mysql> SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 358 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> CHANGE MASTER TO
MASTER_HOST='192.168.153.131',
MASTER_USER='backup',
MASTER_PASSWORD='123456',
MASTER_PORT=3306,
MASTER_LOG_FILE='mysql-bin.000001',
MASTER_LOG_POS=358,
MASTER_CONNECT_RETRY=10;
Query OK, 0 rows affected (0.05 sec)
mysql> SHOW SLAVE STATUS\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.153.131
Master_User: backup
Master_Port: 3306
Connect_Retry: 10
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 275
Relay_Log_File: mysqld-relay-bin.000002
Relay_Log_Pos: 420
Relay_Master_Log_File: mysql-bin.000001
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: 275
Relay_Log_Space: 576
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:
1 row in set (0.00 sec)
3、测试主从双向数据同步
分别在主库和从库插入一条数据,会发现,都可以同步到另一部数据库。至此,MySQL主从双向同步完毕。
如果想配置读写分离,点击跳转:Mysql读写分离