//从清华开源软件站下载epel
wget http://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/e/epel-release-7-10.noarch.rpm
rpm -ivh epel-release-7-10.noarch.rpm
yum update -y
yum install -y redis
centos7 yum 安装 redis
原文：http://www.cnblogs.com/straycats/p/7562877.html
