Centos7下安裝redis


一、安裝redis

第一步:下載redis安裝包

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

[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:解壓壓縮包

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:跳轉到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目錄下的文件加到/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可以關閉窗口。

  

2、以后台進程方式啟動redis

第一步:修改redis.conf文件

daemonize no

 

修改為

daemonize yes

 

第二步:指定redis.conf文件啟動

./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 oO0OoO0OoO0Oo
18713:C 13 Dec 13:07:41.109 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=18713, just started
18713:C 13 Dec 13:07:41.109 # Configuration loaded

 

第三步:關閉redis進程

首先使用ps -aux | grep redis查看redis進程

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

 

使用kill命令殺死進程

[root@iZwz991stxdwj560bfmadtZ src]# kill 18714

  

3、設置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 文件復制一份到/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的啟動腳本復制一份放到/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、設置redis開機自啟動

先切換到/etc/init.d目錄下

然后執行自啟命令

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

 

看結果是redisd不支持chkconfig

解決方法:

使用vim編輯redisd文件,在第一行加入如下兩行注釋,保存退出

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

 

注釋的意思是,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,關閉的優先級是10。

 

再次執行開機自啟命令,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 start
Starting Redis server...
2288:C 13 Dec 13:51:38.087 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
2288:C 13 Dec 13:51:38.087 # Redis version=4.0.6, bits=64, commit=00000000, modified=0, pid=2288, just started
2288: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

 

如果出現如下問題:

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

 

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

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