centOS 7下安装redis详细教程

第一步：下载redis安装包
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
--2018-05-21 22:20:12--  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  
 
2018-05-21 22:20:16 (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

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

第三步：gcc -vg++ -v 查看是否安装gcc,如果没有则yum安装gcc依赖

yum install gcc

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

第四步：跳转到redis解压目录下
cd redis-4.0.6

[root@iZwz991stxdwj560bfmadtZ local]# cd redis-4.0.6

第五步：编译安装
make MALLOC=libc　　

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# 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@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

第六步：测试是否安装成功
先切换到redis src目录下

[root@iZwz991stxdwj560bfmadtZ redis-4.0.6]# cd src

1、直接启动redis
① ./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 如果报如下错误

表示启用不成功,不成功的原因为6379端口被占用,安装的时候已经启用过,不能再次启用,进行以下四步即可

a. 查看6379端口使用情况

b.查看进程详细使用情况

c.杀死进程

d.重新执行 ./redis-server

2、以后台进程方式启动redis

第一步：修改redis.conf文件
将
daemonize no　　
修改为
daemonize yes
第二步：指定redis.conf文件启动
./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,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@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

[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

[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

现在可以直接以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,pid=2288,just started
2288:C 13 Dec 13:51:38.087 # Configuration loaded

关闭：
service redisd stop

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

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