在前面，我们讲到MySQL冷备、热备、mysqldump、热拷贝、保证数据的一致性。因为mysql冷备、mysqldump、mysql热拷贝均不能实现增量
一 使用percona-xtrabackup的原因
在前面，我们讲到MySQL冷备、热备、mysqldump、热拷贝、保证数据的一致性。因为mysql冷备、mysqldump、mysql热拷贝均不能实现增量备份，在实际环境中增量备份是使用较多的，percona-xtrabackup就是为实现增量备份而生，因此我们需要使用percona-xtrabackup。
相关阅读：
MySQL备份与恢复之真实环境使用冷备
MySQL备份与恢复之冷备
MySQL备份与恢复之热备
MySQL 备份与恢复mysqldump
MySQL备份与恢复之热拷贝
MySQL备份与恢复之保证数据一致性
本文讲解percona-xtrabackup软件的使用，下一篇文章讲解percona-xtrabackup实现增量备份及恢复 。
二 什么是percona-xtrabackup
Percona XtraBackup is an open-source hot backup utility for MySQL -based servers that doesn’t lock your database during the backup.
It can back up data from , ,and tableson MySQL 5.1 , 5.5 and5.6 servers, as well as Percona Server with .For a high-level overview of many of its advanced features, including a featurecomparison, please see AboutPercona Xtrabackup.
Whether it is a 24×7 highly loaded server or alow-transaction-volume environment, Percona XtraBackup isdesigned to make backups a seamless procedure without disrupting theperformance of the server in本文来源gao@!dai!ma.com搞$$代^@码!网! a production environment.Commercial support contracts areavailable.
Percona XtraBackup is a combination of the xtrabackup C program,and the innobackupex Perl script. The xtrabackupprogramcopies and manipulates and datafiles, and the Perl script enables enhanced functionality,such as interacting with a running MySQL server and backing up tables.
三 软件及文档获取
软件获取
文档获取
四 软件使用讲解
注：本文采用的percona-xtrabackup版本为2.0.2，操作系统版本为RHEL 6.1 Server，MySQL版本为5.1
第一步，，准备文件并拷贝文件
[root@larrywen ule-mysql]# ll percona-xtrabackup-2.0.2-461.rhel6.x86_64.rpm -rwxr-xr-x. 1 root root 3786628 Sep 10 13:45 percona-xtrabackup-2.0.2-461.rhel6.x86_64.rpm[root@larrywen ule-mysql]# scp percona-xtrabackup-2.0.2-461.rhel6.x86_64.rpm 192.168.1.11:/opt
[root@serv01 opt]# yum install percona-xtrabackup-2.0.2-461.rhel6.x86_64.rpm -yInstalled: percona-xtrabackup.x86_64 0:2.0.2-461.rhel6Dependency Installed: mysql.x86_64 0:5.1.52-1.el6_0.1
第三步，初始化备份
[root@serv01 databackup]# innobackupex –user=root –password=123456 /databackup/InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oyand Percona Inc 2009-2012. All Rights Reserved.……innobackupex: Backup created in directory ‘/databackup/2013-09-10_21-49-44’innobackupex: MySQL binlog position: filename ‘mysql-bin.000001’, position 7312130910 21:50:03 innobackupex: completed OK!
第四步，这样的备份文件无法使用，我们需要做统一检查
[root@serv01 databackup]# lltotal 4drwxr-xr-x. 9 root root 4096 Sep 10 21:50 2013-09-10_21-49-44#做统一检查[root@serv01 databackup]# innobackupex –apply-log /databackup/2013-09-10_21-49-44/InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oyand Percona Inc 2009-2012. All Rights Reserved.……xtrabackup: starting shutdown with innodb_fast_shutdown = 1130910 21:51:52 InnoDB: Starting shutdown…130910 21:51:56 InnoDB: Shutdown completed; log sequence number 2098188130910 21:51:56 innobackupex: completed OK!
第五步，模拟数据丢失
[root@serv01 databackup]# rm -rf /usr/local/mysql/data/*[root@serv01 databackup]# ll /usr/local/mysql/data/total 0
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转载请注明原文链接：MySQL备份与恢复之percona-xtrabackup软件的使用
