vmware虚拟机centos7上的MySQL主从报错怎么解决
发布时间：2022-01-19 14:51:47 所属栏目：MySql教程 来源：互联网
导读：本篇内容主要讲解vmware虚拟机centos7上的MySQL主从报错怎么解决，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习vmware虚拟机centos7上的MySQL主从报错怎么解决吧! 环境描述: 用vmware workstation装的centos 7
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本篇内容主要讲解“vmware虚拟机centos7上的MySQL主从报错怎么解决”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“vmware虚拟机centos7上的MySQL主从报错怎么解决”吧! 环境描述: 用vmware workstation装的centos 7，并做了MySQL主从 主库IP:192.168.0.1 从库IP:192.168.0.2 查看从库状态，发现有错误: mysql> show slave status G *************************** 1. row *************************** Slave_IO_State: Master_Host: 192.168.0.1 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 275142280 Relay_Log_File: localhost-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000003 Slave_IO_Running: No 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: 275142280 Relay_Log_Space: 154 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: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 1593 Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work. Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1 Master_UUID: Master_Info_File: /usr/local/mysql/data/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: 171008 14:02:31 Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) 查看主库的server_id变量 mysql> show global variables like 'server_id'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | server_id | 1 | +---------------+-------+ 1 row in set (0.09 sec) 查看从库的server_id变量 mysql> show global variables like 'server_id'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | server_id | 2 | +---------------+-------+ 1 row in set (0.00 sec) 查看主从库的server_uuid,发现是一样的值 mysql> show global variables like 'server_uuid'; +---------------+--------------------------------------+ | Variable_name | Value | +---------------+--------------------------------------+ | server_uuid | ddfd39f0-ab3a-11e7-931a-000c296ce70e | +---------------+--------------------------------------+ 1 row in set (0.00 sec) 原因是第二台机器是克隆的第一台的虚拟机，所以server_uuid一样 解决方法： 重新生成第二台机器的server_uuid值。 找到如下文件并重命令: [root@localhost data]# cat /usr/local/mysql/data/auto.cnf [auto] server-uuid=ddfd39f0-ab3a-11e7-931a-000c296ce70e [root@localhost data]# cd /usr/local/mysql/data [root@localhost data]# mv auto.cnf auto.cnf.bak 重启mysql: [root@localhost data]# service mysqld restart Shutting down MySQL.... SUCCESS! Starting MySQL. SUCCESS! 发现生成了新的server_uuid: [root@localhost data]# cat auto.cnf [auto] server-uuid=ad5691da-abf0-11e7-81a8-000c299df6f5 再次登陆从库mysql并查询状态，状态已正常: [root@localhost data]# mysql -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 5 Server version: 5.7.18-log MySQL Community Server (GPL) Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> show slave status G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.0.1 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 275142280 Relay_Log_File: localhost-relay-bin.000003 Relay_Log_Pos: 320 Relay_Master_Log_File: mysql-bin.000003 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: 275142280 Relay_Log_Space: 531 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: ddfd39f0-ab3a-11e7-931a-000c296ce70e Master_Info_File: /usr/local/mysql/data/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: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) 到此，相信大家对“vmware虚拟机centos7上的MySQL主从报错怎么解决”有了更深的了解，不妨来实际操作一番吧！ （编辑：晋中站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
