First, installation
Download https://www.percona.com/downloads/XtraBackup/
First download the percona-xtrabackup-24-2.4.4-1.el5.x86_64.rpm, installation report libcurl.so.3 and libev.so.4 can't find, libev.so.3 can pass yum install Libev solve, But libcurl.so.3 by making a soft link (cd/usr/lib64 ln-s libcurl.so.4 libcurl.so.3) or copying a copy from another system cannot be resolved, give up
Download percona-xtrabackup-2.2.10-1.el5.x86_64.rpm installation, make sure Perl is installed before installation
Yum Install PERL-DBI
Yum Install Perl-dbd-mysql
Yum Install Perl-time-hires
Yum Install Perl-io-socket-ssl
Otherwise it will be reported to Perl (Time::hires) is needed .... such as
To download the percona-toolkit-2.2.18-1.noarch.rpm and install it, you must first install the Perl termreadkey module, yum install Perl-termreadkey
Second, use
Percona Xtrabackup Installation and use