首页 / MYSQL / 【备忘】mysql主从设置
【备忘】mysql主从设置
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了【备忘】mysql主从设置,小编现在分享给大家,供广大互联网技能从业者学习和参考。文章包含3390字,纯文字阅读大概需要5分钟。
内容图文
[root@vm-vagrant mysql]# vi my.cnf
[mysqld]节点下添加以下配置
server-id=1
log-bin=mysql-bin #这个一定得设置,否则没有日志的话,从数据库上会报错
[root@vm-vagrant mysql]# /etc/init.d/mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
[root@vm-vagrant mysql]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.28-log Source distribution
Copyright (c) 2000, 2015, 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.
给从库账号授权
mysql> GRANT REPLICATION SLAVE,RELOAD,SUPER ON *.* TO backup@‘192.168.1.11‘ IDENTIFIED BY ‘123456‘;
Query OK, 0 rows affected (0.03 sec)
mysql> UNLOCK TABLES;
Query OK, 0 rows affected (0.00 sec)
mysql> SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 | 346 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
mysql>
从(master)192.168.1.11机器设置:
[root@vm-vagrant mysql]# vi my.cnf
[mysqld]节点下添加以下配置
log-bin = mysql-bin
server_id = 2
重启
[root@vm-vagrant mysql]# /etc/init.d/mysql restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
配置master信息
mysql> CHANGE MASTER TO MASTER_HOST=‘192.168.1.10‘, MASTER_USER=‘backup‘, MASTER_PASSWORD=‘123456‘, MASTER_PORT=3306, MASTER_LOG_FILE=‘mysql-bin.000001‘, MASTER_LOG_POS=106,MASTER_CONNECT_RETRY=10;
Query OK, 0 rows affected, 2 warnings (0.04 sec)
mysql> start slave;
Query OK, 0 rows affected (0.03 sec)
可以查看slave的状态
mysql> show slave status;
发现报错了:
Got fatal error 1236 from master when reading data from binary log: ‘log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master; the first event ‘mysql-bin.000001‘ at 106, the last event read from ‘./mysql-bin.000001‘ at 106, the last byte read from ‘./mysql-bin.000001‘ at 125.‘
将master机上的日志导出来
mysqlbinlog mysql-bin.000001 > test.txt
找到at的最后位置,然后修改上面的chang master语句 中的MASTER_LOG_POS=的值
mysql> change master to master_log_file=‘mysql-bin.000001‘,master_log_pos=1157;
然后发现简单主从配置已经实现(配置后续优化)
中间遇到的一个问题:
由于我是在vagrant上的环境,用的同一个.box文件,所以主从复制时造成uuid错误
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.
mysql版本如下
mysql> status;
--------------
mysql Ver 14.14 Distrib 5.6.28, for Linux (x86_64) using EditLine wrapper
这种情况只需要将mysql的data目录下的auto.cnf中server-uuid值改成master和slave互相不一致即可
[auto]
server-uuid=89009021-fadf-11e5-b16d-0800274fb806
【备忘】mysql主从设置
标签:主从复制 ignore moni b16 添加 uid copy ade error:
本文系统来源:http://www.cnblogs.com/liugx/p/7071035.html
内容总结
以上是互联网集市为您收集整理的【备忘】mysql主从设置全部内容,希望文章能够帮你解决【备忘】mysql主从设置所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错,欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 gblab@vip.qq.com 举报,一经查实,本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。