CentOS 6.4下Percona Xtrabackup安装部署错误处理

在centos 6.4 安装部署Percona Xtrabackup，执行全备份脚本，备份不成功，查看日志，报错如下：

11:15:51 innobackupex: Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_file=/etc/my.cnf;mysql_read_default_group=xtrabackup;mysql_socket=/data/lib/mysql/mysql.sock' as 'dump' (using password: YES).
innobackupex: got a fatal error with the following stacktrace: at /usr/bin/innobackupex line 2999
main::mysql_connect('abort_on_error', 1) called at /usr/bin/innobackupex line 1539
innobackupex: Error: Failed to connect to MySQL server as DBD::mysql module is not installed at /usr/bin/innobackupex line 2999.

日志显示安装perl-DBD有问题
解决办法：卸载下列软件
rpm -e percona-xtrabackup-2.2.9-5067.el6.x86_64
rpm -e perl-DBI-1.52-2.el5.x86_64 --nodeps
rpm -e perl-DBD-MySQL-4.013-3.el6.x86_64 --nodeps
重新安装软件
rpm -ivh perl-DBI-1.609-4.el6.x86_64.rpm
rpm -ivh perl-DBD-MySQL-4.013-3.el6.x86_64.rpm
rpm -ivh percona-xtrabackup-2.2.9-5067.el6.x86_64.rpm

重新执行全备份脚本，备份成功，查看日志，无报错信息，问题

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