redisd的安装（centos7.0)
参考资料：
1、http://blog.csdn.net/zc474235918/article/details/50974483
2、http://blog.csdn.net/gxw19874/article/details/51992125
如果出现如下问题：
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[[email protected] ~]# service redisd start/var/run/redis_6379.pid exists, process is already running or crashed |
可参考资料：http://blog.csdn.net/luozhonghua2014/article/details/54649295
# 尝试启动或停止redisservice redis start
#没有设置密码的关闭方式service redis stop
#设置了密码的关闭方式/usr/local/bin/redis-cli -h 127.0.0.1 -p 6379 -a yourpassword shutdown
# 开启服务自启动chkconfig redis on