[nosql之redis]yum安装redis

1.首先对于这种nosql来说目前我用到的功能很少，所以感觉没有必要去优化他跟不需要去编译安装。今天来介绍下一个yum安装redis

步骤1：安装扩展yum库

[root@localhost ~]# yum install epel-release
##在查看下yum源中是否有redis
[root@localhost ~]# yum search redis
[root@localhost ~]# yum -y install redis
##ok安装完成！

启动：

##CentOS7
[root@localhost ~]# systemctl start redis.service
##CentOS7以下
[root@localhost ~]# service redis start
##查看启动：
[root@localhost ~]# ps -ef | grep redis
redis     12683      1  0 23:19 ?        00:00:00 /usr/bin/redis-server 127.0.0.1:6379
root      12696  12454  0 23:20 pts/2    00:00:00 grep --color=auto redis

客户端连接：

[root@localhost ~]# redis-cli
127.0.0.1:>
127.0.0.1:> keys *
(empty list or set)
127.0.0.1:> set a
OK
127.0.0.1:> get a
""
127.0.0.1:> keys *
) "a"
127.0.0.1:> del a
(integer) 1
127.0.0.1:6379> keys *
(empty list or set)

开机自启动：两种方式

方法1: 启动命令写入 /etc/rc.d/rc.local 文件里面

[root@localhost ~]# echo 'systemctl start redis.service' >> /etc/rc.d/rc.local
[root@localhost ~]# cat /etc/rc.d/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.

touch /var/lock/subsys/local
memcached -u memcached -p  -m  -c  &
systemctl start redis.service

方法2：加入系统服务 :我这里用yum安装本身就是加入了系统服务了只需要设置开机自启动就可以:

[root@localhost ~]# systemctl enable redis.service