centos7.4安装redis以及配置外网访问

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@vm_34_108_centos 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

第三步：yum安装gcc依赖

yum install gcc

第四步：跳转到redis解压目录下

cd redis-4.0.6

第五步：编译安装

make malloc=libc　　

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

cd src && make install

[root@vm_34_108_centos 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、启动redis的三种方式

先切换到redis src目录下（redis安装目录）

1、直接启动redis

./redis-server

[root@vm_34_108_centos 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

　　

2、以后台进程方式启动redis

第一步：修改redis.conf文件 

将deamonize no 改为 yes

第二步：指定redis.conf文件启动

./redis-server /usr/local/redis-4.0.6/redis.conf

[root@vm_34_108_centos 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：关闭redis进程

首先使用ps -aux | grep redis查看redis进程

[root@vm_34_108_centos 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

[root@izwz991stxdwj560bfmadtz src]# kill -9 18714

3、设置redis开机自启动

1、在/etc目录下新建redis目录

mkdir redis

[root@izwz991stxdwj560bfmadtz etc]# 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]# cp /usr/local/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]# cp /usr/local/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

# 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。

 

再次执行开机自启命令，成功

[root@izwz991stxdwj560bfmadtz init.d]# chkconfig redisd on

　

现在可以直接已服务的形式启动和关闭redis了

启动：

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

 

关闭：

service redisd stop

3、配置外网访问

更改redis.conf 文件

将 #bind 127.0.0.1 改为 bind 127.0.0.1

将protected-mode yes 改为 protected-mode no

重启redis服务即可

三、参考资料（转载自）

1：安装redis参考  https://www.cnblogs.com/zuidongfeng/p/8032505.html

2：设置外网访问参考  https://www.cnblogs.com/taiyonghai/p/5826134.html