mysql 5.6 的新特性之一,是加入了全局事务 id (gtid) 来强化数据库的主备一致性,故障恢复,以及容错能力。
什么是GTID?
官方文档: 代码如下:
mysql> GRANT REPLICATION SLAVE ON *.* TO repluser@172.16.88.205 IDENTIFIED BY 'replpassword';
说明:172.16.88.205是从节点服务器;如果想一次性授权更多的节点,可以自行根据需要修改;
七、启动从数据库上的复制线程
mysql> CHANGE MASTER TO MASTER_HOST='masterdb.example.com', MASTER_USER='repluser', MASTER_PASSWORD='replpassword', MASTER_AUTO_POSITION=1; mysql>start slave;
八、在从数据库上查看复制状态
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: masterdb.56xyl.com
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 191
Relay_Log_File: slavedb-relay-bin.000003
Relay_Log_Pos: 401
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes #IO线程已正常运行
Slave_SQL_Running: Yes #SQL线程已正常运行
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: 191
Relay_Log_Space: 1899
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: 971d7245-c3f8-11e5-8b6b-000c2999e5a5
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 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: 971d7245-c3f8-11e5-8b6b-000c2999e5a5:1-6
Executed_Gtid_Set: 89e78301-c3f4-11e5-8b51-00505624d26a:1-3,
971d7245-c3f8-11e5-8b6b-000c2999e5a5:1-6
Auto_Position: 1
1 row in set (0.00 sec)
ERROR:
No query specified
mysql>
九、测试
在主库上创建数据库:
mysql> create database log_statics; Query OK, 1 row affected (0.11 sec) mysql> use log_statics; Database changed 到从数据库上查看log_statics是否已经复制过去 mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | log_statics | | mysql | | performance_schema | +--------------------+ 4 rows in set (0.01 sec) mysql>
可以看到log_statics数据库已经存在于从数据库上。
以上就是MySQL5.6基于GTID的主从复制_MySQL的内容,更多相关内容请关注PHP中文网(www.php.cn)!
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