xtrabackup分析

innobackupex实际调用了xtrabackup来完成备份：

1.使用yum安装xtrabackup:

yum install http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm

yum install epel-release –y

yum install libev –y

yum install percona-xtrabackup

2.全量备份并将屏幕输出重定向到/tmp/xtrabackup.log方便以后分析：

[[email protected] ~]# innobackupex  --defaults-file=/usr/local/mysql/my3317.cnf  /tmp/ 2>/tmp/xtrabackup.log