centOS 使用 yum 安装 Redis
彭仲卿
源码包安装的方式我就不多说了，教程很多。下面主要说一下怎么通过 yum 来进行更方便快捷的安装 redis。
1、检查是否有 redis yum 源
yum install redis（一般都会失败的，因为官方的源很滞后）
[root@master packages]# yum install redis
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
base | 3.6 kB 00:00:00
crystal | 2.9 kB 00:00:00
docker-ce-stable | 3.5 kB 00:00:00
extras | 2.9 kB 00:00:00
jenkins | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
jenkins/primary_db | 35 kB 00:00:02
No package redis available.
Error: Nothing to do2、下载 fedora 的 epel 仓库
EPEL 的全称叫 Extra Packages for Enterprise Linux 。EPEL是由 Fedora 社区打造，为 RHEL 及衍生发行版如 CentOS、Scientific Linux 等提供高质量软件包的项目。装上了 EPEL之后，就相当于添加了一个第三方源。EPEL则为服务器版本提供大量的rpm包，而且大多数rpm包在官方 repository 中是找不到的。
yum install epel-release （安装成功后再执行 yum install redis）[root@master packages]# yum install epel-release
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package epel-release.noarch 0:7-11 will be installed
--> Finished Dependency Resolution
...
Install 1 Package
Total download size: 15 k
Installed size: 24 k
Is this ok [y/d/N]: y
Downloading packages:
epel-release-7-11.noarch.rpm | 15 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : epel-release-7-11.noarch 1/1
Verifying : epel-release-7-11.noarch 1/1
Installed:
epel-release.noarch 0:7-11
Complete!
3、安装 redis 数据库
yum install redis[root@master packages]# yum install redis
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 7.1 kB 00:00:00
* base: mirrors.aliyun.com
* epel: mirrors.bfsu.edu.cn
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
epel | 4.7 kB 00:00:00
(1/3): epel/x86_64/group_gz | 95 kB 00:00:00
(2/3): epel/x86_64/updateinfo | 1.0 MB 00:00:01
epel/x86_64/primary_db FAILED ] 87 B/s | 1.2 MB 22:53:16 ETA
...
Importing GPG key 0x352C64E5:
Userid : "Fedora EPEL (7) <epel@fedoraproject.org>"
Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5
Package : epel-release-7-11.noarch (@extras)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : jemalloc-3.6.0-1.el7.x86_64 1/2
Installing : redis-3.2.12-2.el7.x86_64 2/2
Verifying : redis-3.2.12-2.el7.x86_64 1/2
Verifying : jemalloc-3.6.0-1.el7.x86_64 2/2
Installed:
redis.x86_64 0:3.2.12-2.el7
Dependency Installed:
jemalloc.x86_64 0:3.6.0-1.el7
Complete!
4、安装完毕后，使用下面的命令启动 redis 服务
# redis 的启动、停止和状态查看
[root@master packages]# service redis start
Redirecting to /bin/systemctl start redis.service
[root@master packages]# service redis stop
Redirecting to /bin/systemctl stop redis.service
[root@master packages]# service redis status
Redirecting to /bin/systemctl status redis.service
● redis.service - Redis persistent key-value database
Loaded: loaded (/usr/lib/systemd/system/redis.service; disabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/redis.service.d
└─limit.conf
Active: inactive (dead)
Nov 04 21:29:54 master systemd[1]: Starting Redis persistent key-value database...
Nov 04 21:29:54 master systemd[1]: Started Redis persistent key-value database.
Nov 04 21:30:03 master systemd[1]: Stopping Redis persistent key-value database...
Nov 04 21:30:03 master systemd[1]: Stopped Redis persistent key-value database.
5、设置开机启动
[root@master packages]# chkconfig redis on
Note: Forwarding request to 'systemctl enable redis.service'.
Created symlink from /etc/systemd/system/multi-user.target.wants/redis.service to /usr/lib/systemd/system/redis.service.
6、进入 redis 服务
[root@master packages]# which redis-server
/usr/bin/redis-server
[root@master packages]# which redis-cli
/usr/bin/redis-cli
[root@master packages]# redis-cli
127.0.0.1:6379> set key value [EX seconds] [PX milliseconds] [NX|XX]
127.0.0.1:6379> set mykey hello
OK
127.0.0.1:6379> get mykey
"hello"
127.0.0.1:6379>
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