How to install redis server on CentOS 7 / RHEL 7

在本教程中，我们将学习如何在CentOS 7 / RHEL 7上安装Redis服务器。 redis的缩写是REmote DIctionary Server。

它是最流行的开源，高级键值缓存和存储之一。

reids的官方网站地址： http://redis.io/

如果你的服务器没有安装wget下载程序的话，需要先安装wget，

Install wget command：

yum install wget

Install redis server

Now use yum command to install redis server

yum install redis

Two important redis server configuration file’s path
1. /etc/redis.conf
2. /etc/redis-sentinel.conf

Now start the redis server after this.

systemctl start redis.service

Check the running status of redis server

systemctl status redis.service

To test the installation of Redis, use below given command

If the response output is PONG, it means installation is completed successfully.

[root@localhost ~]# redis-cli ping
PONG
[root@localhost ~]#

Start/Stop/Restart/Status and Enable redis server

To start redis server

systemctl start redis.service

To stop redis server

systemctl stop redis.service

To restart redis server

systemctl restart redis.service

To get running status of redis server

systemctl status redis.service

To enable redis server at system’s booting time.

systemctl enable redis.service

To disable redis server at system’s booting time.

systemctl disable redis.service

查看redis是否启动：

reids-server

打开redis终端：

redis-cli

首次在php中使用redis时，我遇到了class 'Redis' not found的错误，

$redis = new Redis();

最后再网上发现需要再Redis前面加上\,

$redis = new \Redis();