如何在centos系統下安裝redis資料庫

具體安裝步驟如下：

一、安裝redis

第一步：下載redis安裝套件

[root@iZwz991stxdwj560bfmadtZ local]# wget http://download.redis.io/releases/redis-4.0.6.tar.gz
--2017-12-13 12:35:12--  http://download.redis.io/releases/redis-4.0.6.tar.gz
Resolving download.redis.io (download.redis.io)... 109.74.203.151
Connecting 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%[==========================================================================================================>] 1,723,533    608KB/s   in 2.8s   

2017-12-13 12:35:15 (608 KB/s) - ‘redis-4.0.6.tar.gz’ saved [1723533/1723533]

第二步驟：解壓縮壓縮套件

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

第三步：yum安裝gcc依賴

yum install gcc
[root@iZwz991stxdwj560bfmadtZ local]# yum install gcc

遇到選擇,輸入y即可

第四步：跳到redis解壓目錄下

cd redis-4.0.6
[root@iZwz991stxdwj560bfmadtZ local]# cd redis-4.0.6

第五步：編譯安裝

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

將/usr/local/redis-4.0.6/src目錄下的檔案加到/usr/local/bin目錄

cd src && make install

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src && make install
    CC Makefile.dep

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

    INSTALL install
    INSTALL install
    INSTALL install
    INSTALL install
    INSTALL install

二、啟動redis的三種方式

先切換到redis src目錄下

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src

1、直接啟動redis

./redis-server

[root@iZwz991stxdwj560bfmadtZ src]# ./redis-server
18685:C 13 Dec 12:56:12.507 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
18685:C 13 Dec 12:56:12.507 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18685, just started
18685:C 13 Dec 12:56:12.507 # Warning: no config file specified, using the default config. In order to specify a config file use ./redis-server /path/to/redis.conf
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 4.0.6 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 18685
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

18685:M 13 Dec 12:56:12.508 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
18685:M 13 Dec 12:56:12.508 # Server initialized
18685:M 13 Dec 12:56:12.508 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
18685:M 13 Dec 12:56:12.508 # WARNING you have Transparent Huge Pages (THP) support enabled in your 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.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
18685:M 13 Dec 12:56:12.508 * Ready to accept connections

如上圖：redis啟動成功，但是這種啟動方式需要一直打開窗口，不能進行其他操作，不太方便。

按 ctrl c可以關閉視窗。

2、以後台進程方式啟動redis

第一步：修改redis.conf檔

將

daemonize no

修改為

daemonize yes

第二步：指定redis.conf檔啟動

./redis-server /usr/local/redis-4.0.6/redis.conf
   
[root@iZwz991stxdwj560bfmadtZ src]# ./redis-server /usr/local/redis-4.0.6/redis.conf 18713:C 13 Dec 13:07:41.109 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo18713:C 13 Dec 13:07:41.109 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18713, just started18713:C 13 Dec 13:07:41.109 # Configuration loaded

第三個步驟：關閉redis程式

首先使用ps - aux | grep redis查看redis程序

[root@iZwz991stxdwj560bfmadtZ src]# ps -aux | grep redis
root     18714  0.0  0.1 141752  2008 ?        Ssl  13:07   0:00 ./redis-server 127.0.0.1:6379root     18719  0.0  0.0 112644   968 pts/0    R+   13:09   0:00 grep --color=auto redis

使用kill指令殺死程序

[root@iZwz991stxdwj560bfmadtZ src]# kill 18714

3、設定redis開機自啟動

1、在/etc目錄下新建redis目錄

mkdir redis
[root@iZwz991stxdwj560bfmadtZ etc]# mkdir redis

2、將/usr/local/redis-4.0.6/redis.conf 檔案複製一份到/etc/redis目錄下，並命名為6379.conf　　

[root@iZwz991stxdwj560bfmadtZ redis]# cp /usr/local/redis-4.0.6/redis.conf /etc/redis/6379.conf

3 、將redis的啟動腳本複製一份放到/etc/init.d目錄下

[root@iZwz991stxdwj560bfmadtZ init.d]# cp /usr/local/redis-4.0.6/utils/redis_init_script /etc/init.d/redisd

4、設定redis開機自啟動

先切換到/etc/init.d目錄下

然後執行自啟動指令

[root@iZwz991stxdwj560bfmadtZ init.d]# chkconfig redisd on
service redisd does not support chkconfig　

看結果是redisd不支援chkconfig

解決方法：

使用vim編輯redisd文件，在第一行加入如下兩行註釋，保存退出

# chkconfig:   2345 90 10# description:  Redis is a persistent key-value database

註釋的意思是，redis服務必須在運行級2，3，4，5下被啟動或關閉，啟動的優先級是90，關閉的優先權是10

再次執行開機自啟動指令，成功

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

現在可以直接已服務的形式啟動和關閉redis了

啟動：

service redisd start　
[root@izwz991stxdwj560bfmadtz ~]# service redisd startStarting Redis server...2288:C 13 Dec 13:51:38.087 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo2288:C 13 Dec 13:51:38.087 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=2288, just started2288:C 13 Dec 13:51:38.087 # Configuration loaded

關閉：

方法1：service redisd stop

[root@izwz991stxdwj560bfmadtz ~]# service redisd stop
Stopping ...
Redis stopped

方法2：redis-cli SHUTDOWN

#三、參考資料

1、http://blog.csdn.net/zc474235918/article/details/50974483

2、http://blog.csdn.net/gxw19874/article/details/51992125

如果出現以下問題：

[root@iZwz991stxdwj560bfmadtZ ~]# service redisd start/var/run/redis_6379.pid exists, process is already running or crashed

可參考：http://blog.csdn.net/luozhonghua2014/article/details/54649295

#相關推薦：redis資料庫教學

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