一、单机安装redis

1.1 安装redis依赖

redis是基于C语言编写的，因此首先需要安装redis的所需的gcc依赖：

 yum install -y gcc tcl

1.2 下载安装包并解压

下载地址： download.redis.io/releases/re…

#下载安装包
wget http://download.redis.io/releases/redis-6.2.6.tar.gz
mv redis-6.2.6.tar.gz  /usr/local/src/
cd  /usr/local/src/
#解压
tar zxf redis-6.2.6.tar.gz
cd redis-6.2.6
ls
#编译
make&&make install

如果能上述步骤没有出错，就表示安装成功了。默认的安装路径在/usr/local/bin下面

[root@192 redis-6.2.6]# cd /usr/local/bin
[root@192 bin]# ls
redis-benchmark  redis-check-aof  redis-check-rdb  redis-cli  redis-sentinel  redis-server

1.3 启动

1.3.1 默认启动

安装完成后，在任意目录执行redis-server命令即可启动redis,此种方式为前台启动

[root@192 ~]# redis-server
15168:C 15 Nov 2022 10:33:44.254 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
15168:C 15 Nov 2022 10:33:44.254 # Redis version=6.2.6, bits=64, commit=00000000, modified=0, pid=15168, just started
15168:C 15 Nov 2022 10:33:44.254 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
15168:M 15 Nov 2022 10:33:44.254 * Increased maximum number of open files to 10032 (it was originally set to 1024).
15168:M 15 Nov 2022 10:33:44.254 * monotonic clock: POSIX clock_gettime
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 6.2.6 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                  
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 15168
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           https://redis.io       
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

15168:M 15 Nov 2022 10:33:44.256 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
15168:M 15 Nov 2022 10:33:44.256 # Server initialized
15168:M 15 Nov 2022 10:33:44.256 # 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.
15168:M 15 Nov 2022 10:33:44.257 * Ready to accept connections

1.3.2 指定配置启动

如果想让redis以后台方式启动，那就必须要修改redis配置文件，配置文件的位置在压缩包解压后的文件夹目录下/usr/local/src/redis-6.2.6，文件名叫做redis.conf:

cd /usr/local/src/redis-6.2.6
[root@192 redis-6.2.6]# ls
00-RELEASENOTES  BUGS  CONDUCT  CONTRIBUTING  COPYING  deps  INSTALL  Makefile  MANIFESTO  README.md  redis.conf  runtest  runtest-cluster  runtest-moduleapi  runtest-sentinel  sentinel.conf  src  tests  TLS.md  utils

需要将该配置文件备份。

cp  redis.conf  redis.conf.bak

修改一些配置

vi  redis.conf
#允许访问的地址 默认是127.0.0.1,会导致只能在本地访问，0.0.0.0 为任意IP访问，生产环境需要指定具体IP
#bind 127.0.0.1 -::1
bind 0.0.0.0
#守护进程，改为yes 为后台运行
daemonize yes
#密码 设置后必须输入密码
requirepass 12345
logfile "redis.log"
#端口
port 6379
dir .
#databases 1

启动redis

[root@192 redis-6.2.6]# redis-server redis.conf
[root@192 redis-6.2.6]# ps -ef|grep redis
root      15225      1  0 10:54 ?        00:00:00 redis-server 0.0.0.0:6379
root      15231   1962  0 10:54 pts/1    00:00:00 grep --color=auto redis
[root@192 redis-6.2.6]#

停止服务

#判断redis-cli 来执行shutdown，即可停止redis服务
redis-cli -a 12345 shutdown

1.3.3 开机启动

vi /etc/systemd/system/redis.service
[Unit]
Description=redis-server
After=network.target

[Service]
Type=forking
ExecStart=/usr/local/bin/redis-server /etc/redis/redis.conf
PrivateTmp=true
RuntimeDirectory=redis
RuntimeDirectoryMode=0755

[Install]
WantedBy=multi-user.target

二、redis客户端

2.1 了解命令行客户端

命令行客户端在安装redis的时候会自动安装，在任意位置执行redis-cli即可.

#  redis-cli  其实后面跟了 -h -p 等参数只是默认的省略了
#  下面的命令完整的是 redis-cli -h 127.0.0.1 -p 6379 
# auth 是输入密码验证
# ping 是检测redis-server的心跳
[root@192 ~]# redis-cli 
127.0.0.1:6379> auth 12345
OK
127.0.0.1:6379> ping
PONG
127.0.0.1:6379>

2.2 了解图形界面客户端

此处就介绍几个。

redis安装说明