我正在尝试使用以下行在 centos 6.5 (x64) 上安装 Redis：
yum install redis
但我得到以下屏幕：
[root@NodeJs ~]# yum install redis
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: nl.mirror.eurid.eu
* epel: nl.mirror.eurid.eu
* extras: mirror.denit.net
* updates: nl.mirror.eurid.eu
Resolving Dependencies
--> Running transaction check
---> Package redis.x86_64 0:2.8.14-2.el7 will be installed
--> Processing Dependency: systemd for package: redis-2.8.14-2.el7.x86_64
--> Processing Dependency: systemd for package: redis-2.8.14-2.el7.x86_64
--> Processing Dependency: libjemalloc.so.1()(64bit) for package: redis-2.8.14-2.el7.x86_64
--> Running transaction check
---> Package …