包含标签 mysqldump articles

mysql常见备份方式汇总

一、mysql 备份现状及备份手段 从数据安全的角度来说,服务器磁盘都会做raid,MySQL本身也有主从、drbd等容灾机制,但它们都无法完全取代备份。容灾和高可用能帮我们 有效的应对物理的、硬件的、机械的故障,而对我们犯下的逻辑错误却无能为力。每一种逻辑错误发生的概率都极低,但是当……

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MySQL多线程备份工具mydumper

一、Mydumper介绍 Mydumper是一个针对MySQL和Drizzle的高性能多线程备份和恢复工具。开发人员主要来自MySQL,Facebook,SkySQL公司。目前已经在一些线上使用了Mydumper。 Mydumper主要特性: 轻量级C语言写的 执行速度比mysqldum……

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mysqldump的ERROR 1449的解决方法

当用mysqldump导出数据库时有时会出现问题,例如以下命令执行时: 1mysqldump -uroot -pPasswd DBName >/home/www/DB_Backup.sql 出错,显示: 1Got error: 1449: The user specified as a definer ('test'@'192.168.1.%') does not exist when using LOCK TABLES 其实上面的报错信息中已经说的很明白了,就是test用户没有lock tables的权限 ,对该用户增加 lock tables的权限就行了。 1mysql> GRANT select, lock tables ON dbname.* TO 'test'@'192.168.1.%' 2mysql> flush privileges; 再重……

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mysqldump备份数据库

mysql有通过mysqldump备份和直接复制数据文件两种备份方法。但直接复制方法有移植性不强的缺点,当你使用一种直接备份方法时,你必须保证表不在被使用。优点是适合备份大数据量文件。mysqldump还支持只导出表结构或只导出数据 mysqldump备份与还原 优点:能够移植到其他……

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