一、安裝redis

第一步：下載redis安裝包

redis下載地址

wget http://download.redis.io/releases/redis-5.0.3.tar.gz

 

第二步：解壓壓縮包

tar -zxvf redis-5.0.3.tar.gz

 

第三步：yum安裝gcc依賴

yum -y install gcc

 

第四步：跳轉到redis解壓目錄下

cd redis-5.0.3

　　

第五步：編譯安裝

make MALLOC=libc

將/usr/local/redis5.0/redis-5.0.3/src目錄下的檔案加到/usr/local/bin目錄

cd src && make install

 

二、啟動redis的三種方式

 redis安裝完成後預設是本機訪問

設定所有ip訪問

vim /etc/redis.conf

找到bind 127.0.0.1並註釋掉

修改 protected-mode 屬性值為no

注：redis預設是隻能本地訪問，註釋掉並叫保護模式禁用以後可以IP訪問

　　

先切換到redis src目錄下

cd src

　　

 

1、直接啟動redis

./redis-server

[
 
[email protected] 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開啟視窗，不能進行其他操作，不太方便。

 

按 ctrl + c可以關閉視窗。

　　

2、以後臺程序方式啟動redis

第一步：修改redis.conf檔案

將

daemonize no

 

修改為

daemonize yes

　

第二步：指定redis.conf檔案啟動

./redis-server /usr/local/redis5.0/redis-5.0.3/redis.conf

 

 

第三步：關閉redis程序

首先使用ps -aux | grep redis檢視redis程序

# 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命令殺死程序

# kill -9 18714

　

 

3、設定redis開機自啟動

1、在/etc目錄下新建redis目錄

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　　

cp /usr/local/redis5.0/redis-5.0.3/redis.conf /etc/redis/6379.conf

 

3、將redis的啟動指令碼複製一份放到/etc/init.d目錄下

cp /usr/local/redis5.0/redis-5.0.3/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

然後執行自啟命令

# chkconfig redisd on
結果:
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檔案，在第一行加入如下兩行註釋，儲存退出

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

 

註釋的意思是，redis服務必須在執行級2，3，4，5下被啟動或關閉，啟動的優先順序是90，關閉的優先順序是10。

 

再次執行開機自啟命令，成功

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

# service redisd start
結果:
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

 

如果電腦沒有關機會報這個錯誤

/var/run/redis_6379.pid exists, process is already running or crashed

解決方案:

1. 可用安裝檔案啟動     redis-server /etc/redis/6379.conf
2. shutdown -r now 軟重啟讓系統自動恢復下就行了

關閉：

service redisd stop

[[email protected] ~]# service redisd stop
Stopping ...
Redis stopped

　

　

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：

[[email protected] ~]# 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