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  • cenOs7安装redis

    1、安装redis

    redis 目前没有官方 RPM 安装包,我们需要从源代码编译,而为了要编译就需要安装 Make 和 GCC。

    如果没有安装过 GCC 和 Make,那么就使用 yum 安装 -------yum install gcc make

    第一步:下载redis安装包

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

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    [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:解压压缩包

    tar -zxvf redis-4.0.6.tar.gz

    第四步:跳转到redis解压目录下

    cd redis-4.0.6

    第五步:使用Make 编译源文件-----------------make 

    第六步:测试是否安装成功 

    先切换到redis src目录下

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    [root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src

    1、直接启动redis

    ./redis-server

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    [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

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    daemonize no  

    修改为

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    daemonize yes

      注:该属性是将redis后台运行

    第二步:指定redis.conf文件启动

    ./redis-server /opt/redis/redis-4.0.6/redis.conf
     
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    [root@iZwz991stxdwj560bfmadtZ src]# ./redis-server /opt/redis/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:关闭redis进程

    首先使用ps -aux | grep redis查看redis进程

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    [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命令杀死进程

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    [root@iZwz991stxdwj560bfmadtZ src]# kill -9 18714

      

       

    第七步:设置redis开机自启动

    1、在/etc目录下新建redis目录

    mkdir redis

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    [root@iZwz991stxdwj560bfmadtZ etc]# mkdir redis

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

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    [root@iZwz991stxdwj560bfmadtZ redis]# cp /opt/redis/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

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

      

    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

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

    看结果是redis_init_script不支持chkconfig

    解决方法:

    使用vim编辑redis_init_script文件,在第三行加入如下两行注释,保存退出

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    # chkconfig:   2345 90 10
    # 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。

    同时还要修改参数,指定redis的安装路径

    修改完成后按 Esc ,再按 :wq + Enter(回车) 保存并退出

    修改完成后的截图

    再次执行开机自启命令,成功

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

      

    现在可以直接已服务的形式启动和关闭redis了

    启动:

    service redis_init_script start  

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    [root@izwz991stxdwj560bfmadtz ~]# service redis_init_script 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

    关闭:

    service redis_init_script stop

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

      

     

    vim /etc/redis的6379.conf

    找到bind 127.0.0.1并注释掉

    修改 protected-mode 属性值为no

    注:redis默认是只能本地访问,注释掉并叫保护模式禁用以后可以IP访问

    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:

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    [root@iZwz991stxdwj560bfmadtZ ~]# service redis_init_script 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

    简单的java连接Redis并使用测试

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  • 原文地址:https://www.cnblogs.com/dzcWeb/p/8919915.html
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