MySQL ZRM 工具是用PERL写的可以全部和增量备份MySQL数据库的一个强大工具。还可以做快照，不过我现在没有条件做。等以后有可以做了再补上。其实具体要说的也没啥，我只是做了点测试。这里测试的环境是MySQL5.0.x.系统是单核2G内存.32位的机器.官方地址：[url]http://mysqlbackup.zmanda.com/[/url]必须先安装PERL所需组件。[url]http://mysqlbackup.zmanda.com/index.php/Perl_Installation_Notes[/url]1.先建立备份用户。mysql> grant lock tables, select, file, reload, super, show view on *.* to backup_user@'localhost' identified by 'backup_user';Query OK, 0 rows affected (0.00 sec)mysql> flush privileges;Query OK, 0 rows affected (0.00 sec)恢复用户我一般直接用ROOT。我觉得这样保险。如果要增量备份，就开启binlog.2.安装：[root@localhost david_yeung]# rpm -ivh MySQL-zrm-2.0-1.noarch.rpm MySQL-zrm-client-2.0-1.noarch.rpm 3.以下是备份过程。1).用MySQL-zrm来备份。(没有压缩的)（也是利用mysqldump来备份）[root@localhost mysql-zrm]# time mysql-zrm-backup --backup-set ytt3...ytt3:backup:INFO: END OF BACKUPreal 4m9.712suser 1m51.067ssys 0m10.563s2).用mysqldump 来备份。我来给my.cnf加几个参数：[mysqldump]quickmax_allowed_packet = 32Mnet_buffer_length=32Muser=backup_userpassword=backup_usersocket=/tmp/mysql3307.sock完了重启MySQLD。[root@localhost mysql5130]# time mysqldump --defaults-file=/usr/local/mysql5130/my.cnf --databases test t_girl > /home/david_yeung/t.sqlreal 4m40.554suser 2m9.586ssys 0m10.646s4.来看看恢复。先干掉数据库 t_girl 和 test.[root@localhost mysql5130]# mysql --defaults-file=/usr/local/mysql5130/my.cnfWelcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 108Server version: 5.1.30-log Source distributionType 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> show databases;+--------------------+| Database |+--------------------+| information_schema | | mysql | | pbxt | | t_boy | | t_girl | | test | | var | +--------------------+7 rows in set (0.03 sec)mysql> drop database t_girl;Query OK, 6 rows affected (6.13 sec)mysql> drop database test;Query OK, 0 rows affected (0.00 sec)mysql> exitBye1).用mysql-zrm 恢复[root@localhost 20081209150257]# time mysql-zrm-restore -user=root --password=123456 --backup-set ytt3 --source-directory=/home/david_yeung/mysql-zrm/ytt3/20081209150257/ytt3:restore:INFO: Restored database(s) from logical backup: test t_girlytt3:restore:INFO: Restore done in 1962 seconds.real 32m42.285suser 1m30.814ssys 0m13.755s2).用自己的mysqldump 来恢复。先设置set @@global.max_allowed_packet = 34*1024*1024;[root@localhost david_yeung]# time mysql --defaults-file=/usr/local/mysql5130/my.cnf < /home/david_yeung/t.sql real 29m8.793suser 1m8.150ssys 0m5.224s5.看看增量备份.因为之前backup-set 已经全备份过了，所以我们再加一个backup-set来增量备份。[root@localhost ytt_inc1]# mysql-zrm --action backup --backup-set ytt_inc2 --backup-level 1如果备份成功，你会收到EMAIL如下：Backup set=ytt_inc2Backup date=Wed Dec 10 13:57:58 2008Backup level=1Backup size=4.56 GBBackup time=00:03:29Backup status=Backup succeeded用增量备份来恢复的方法跟mysqlbinlog ... | mysql 是一样的。附加资源:主要路径简介。[url]http://mysqlbackup.zmanda.com/index.php/File_Locations[/url]详细的配置参数说明。[url]http://mysqlbackup.zmanda.com/index.php/Backup_Set_Parameters[/url]关于性能的测试。[url]http://mysqlbackup.zmanda.com/index.php/Optimizations[/url]关于备份报告。[url]http://mysqlbackup.zmanda.com/index.php/Pre-defined_Reports[/url]配置文件内容就不用贴了，照着文档的修改就可以了，很简单。
本文转自 david_yeung 51CTO博客，原文链接：http://blog.51cto.com/yueliangdao0608/118694，如需转载请自行联系原作者
