--去官网下载RPM安装包
https://www.percona.com/downloads/Percona-Server-5.6/LATEST/
--解压安装包
[root@localhost percona-xtrabackup-2.4.4-Linux-x86_64]# tar xvf Percona-Server-5.6.31-77.0-r5c1061c-el6-x86_64-bundle.tar
--安装数据库
[root@localhost percona-xtrabackup-2.4.4-Linux-x86_64]# yum localinstall Percona-Server-server-56-5.6.31-rel77.0.el6.x86_64.rpm Percona-Server-client-56-5.6.31-rel77.0.el6.x86_64.rpm Percona-Server-shared-56-5.6.31-rel77.0.el6.x86_64.rpm
--编辑配置文件
[root@localhost mysql]# vim /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
log-error=/var/log/mysqld.log
innodb_buffer_pool_size = 128M
--启动数据库
[root@localhost mysql]# mysqld_safe --defaults-file=/etc/my.cnf &
[1] 3246
--修改ROOT密码
[root@localhost mysql]# mysqladmin -u root password 'root'
Warning: Using a password on the command line interface can be insecure.
--删除数据库中多余的root用户和匿名用户，只在本地保留一个root用户
[root@localhost mysql]# mysql -u root -p'root'
mysql> select host,user from mysql.user;
+-----------------------+------+
| host                  | user |
+-----------------------+------+
| 127.0.0.1             | root |
| ::1                   | root |
| localhost             |      |
| localhost             | root |
| localhost.localdomain |      |
| localhost.localdomain | root |
+-----------------------+------+
6 rows in set (0.00 sec)
mysql> delete from mysql.user where (user,host) not in (select 'root','localhost');
Query OK, 5 rows affected (0.06 sec)
mysql> commit;
Query OK, 0 rows affected (0.00 sec)
mysql> select host,user from mysql.user;
+-----------+------+
| host      | user |
+-----------+------+
| localhost | root |
+-----------+------+
1 row in set (0.00 sec)
--查看数据库的运行状态
[root@localhost mysql]# /etc/init.d/mysql status
 SUCCESS! MySQL (Percona Server) running (6584)