CentOS:Percona安装
在线安装：
yum install http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm
yum install
下载rpm包安装:
wget https://www.percona.com/downloads/Percona-Server-5.7/Percona-Server-5.7.10-3/binary/redhat/7/x86_64/
Percona-Server-5.7.10-3-r63dafaf-el7-x86_64-bundle.tar