CENTOS7下安装REDIS

一、安装redis

第一步：下载redis安装包

wget http://download.redis.io/releases/redis-4.0.6.tar.gz

[root@iZwz991stxdwj560bfmadtZ local]#wgethttp://download.redis.io/releases/redis-4.0.6.tar.gz--2017-12-1312:35:12-- http://download.redis.io/releases/redis-4.0.6.tar.gzResolving download.redis.io (download.redis.io)...109.74.203.151Connecting to download.redis.io (download.redis.io)|109.74.203.151|:80... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1723533(1.6M) [application/x-gzip]

Saving to: ‘redis-4.0.6.tar.gz’100%[==========================================================================================================>]1,723,533608KB/sin2.8s 2017-12-1312:35:15(608KB/s) - ‘redis-4.0.6.tar.gz’ saved [1723533/1723533]

第二步：解压压缩包

[root@iZwz991stxdwj560bfmadtZ local]#tar -zxvf redis-4.0.6.tar.gz

第三步：yum安装gcc依赖

[root@iZwz991stxdwj560bfmadtZ local]#yum install gcc

遇到选择,输入y即可。

第四步：跳转到redis解压目录下

[root@iZwz991stxdwj560bfmadtZ local]# cd redis-4.0.6

第五步：编译安装

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6] make MALLOC=libc

将/usr/local/redis-4.0.6/src目录下的文件加到/usr/local/bin目录

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src && make install

CC Makefile.dep

Hint: It's a good idea to run 'maketest' ;)

INSTALL install

INSTALL install

INSTALL install

INSTALL install

INSTALL install

二、启动redis的三种方式

先切换到redis src目录下

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6] cd src

1、直接启动redis

[root@iZwz991stxdwj560bfmadtZ src] ./redis-server

18685:C13Dec12:56:12.507 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo18685:C13Dec12:56:12.507# Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18685, just started18685:C13Dec12:56:12.507# Warning: no configfilespecified, using the default config. In order to specify a configfileuse ./redis-server /path/to/redis.conf

_._

_.-``__''-._

_.-`` `. `_.''-._ Redis4.0.6(00000000/0)64 bit

.-`` .-```. ```\/ _.,_''-._

( ' , .-` | `, ) Running in standalone mode|`-._`-...-` __...-.``-._|'` _.-'| Port:6379| `-._ `._ / _.-' | PID: 18685`-._ `-._ `-./ _.-' _.-'|`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-'| http://redis.io `-._ `-._`-.__.-'_.-'_.-'|`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-'|

`-._ `-._`-.__.-'_.-'_.-'`-._ `-.__.-' _.-'

`-._ _.-'`-.__.-'18685:M13Dec12:56:12.508# WARNING: The TCP backlog setting of511cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of128.18685:M13Dec12:56:12.508 # Server initialized18685:M13Dec12:56:12.508# WARNING overcommit_memory is set to0! Background save may fail under low memory condition. To fix this issue add'vm.overcommit_memory = 1'to /etc/sysctl.conf andthenreboot or run the command'sysctl vm.overcommit_memory=1'for this to take effect.18685:M13Dec12:56:12.508# WARNING you have Transparent Huge Pages (THP) support enabledinyour kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command'echo never > /sys/kernel/mm/transparent_hugepage/enabled'as root, and add it to your /etc/rc.localin order to retain the setting after a reboot. Redis must be restarted after THP is disabled.18685:M13Dec12:56:12.508* Ready to accept connections

如上图：redis启动成功，但是这种启动方式需要一直打开窗口，不能进行其他操作，不太方便。

按 ctrl + c可以关闭窗口。

2、以后台进程方式启动redis

第一步：修改redis.conf文件 ### /home/admin/soft/redis-4.0.6

将 daemonize no 修改为 daemonize yes

第二步：指定redis.conf文件启动 ### ./redis-server /home/admin/soft/redis-4.0.6/redis.conf

[root@iZwz991stxdwj560bfmadtZ src] ./redis-server /usr/local/redis-4.0.6/redis.conf

18713:C13Dec13:07:41.109 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo

18713:C13Dec13:07:41.109# Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18713, just started

18713:C13Dec13:07:41.109# Configuration loaded

第三步：关闭redis进程

首先使用ps -aux | grep redis查看redis进程

[root@iZwz991stxdwj560bfmadtZ src] ps-aux |grep redis

root 187140.00.11417522008? Ssl13:070:00./redis-server127.0.0.1:6379

root 187190.00.0112644968pts/0R+13:090:00grep--color=auto redis

使用kill命令杀死进程

[root@iZwz991stxdwj560bfmadtZ src] kill 18714

3、设置redis开机自启动

1、在/etc目录下新建redis目录 ### cd /etc/

[root@iZwz991stxdwj560bfmadtZ etc]# sudo mkdir redis

2、将/usr/local/redis-4.0.6/redis.conf 文件复制一份到/etc/redis目录下，并命名为6379.conf　　

[root@iZwz991stxdwj560bfmadtZ redis]# sudo cp /home/admin/soft/redis-4.0.6/redis.conf /etc/redis/6379.conf

3、将redis的启动脚本复制一份放到/etc/init.d目录下

[root@iZwz991stxdwj560bfmadtZ init.d]

sudo cp /home/admin/soft/redis-4.0.6/utils/redis_init_script /etc/init.d/redisd

4、设置redis开机自启动

先切换到/etc/init.d目录下

然后执行自启命令

[root@iZwz991stxdwj560bfmadtZ init.d] chkconfig redisd on

service redisd does not support chkconfig

看结果是redisd不支持chkconfig

解决方法：

使用vim编辑redisd文件，在第一行加入如下两行注释，保存退出 ### sudo vim redisd

# chkconfig:23459010

# description: Redis is a persistent key-value database

注释的意思是，redis服务必须在运行级2，3，4，5下被启动或关闭，启动的优先级是90，关闭的优先级是10。

再次执行开机自启命令，成功 ### sudo chkconfig redisd on

[root@iZwz991stxdwj560bfmadtZ init.d]# chkconfig redisd on

现在可以直接以服务的形式启动和关闭redis了

启动：

[root@izwz991stxdwj560bfmadtz ~] service redisd start

Starting Redis server...

2288:C13Dec13:51:38.087 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo

2288:C13Dec13:51:38.087 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=2288, just started

2288:C13Dec13:51:38.087 # Configuration loaded

关闭：

方法1：service redisd stop

[root@izwz991stxdwj560bfmadtz ~]# service redisd stop

Stopping ...

Redis stopped

方法2：redis-cli SHUTDOWN

三、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：

[root@iZwz991stxdwj560bfmadtZ ~]# 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