Linux环境下安装redis

一、准备工作

1. 下载 redis 安装包, 放到 root 目录里面下载地址

2. 在 /usr/local/ 下创建 redis ⽂件夹并进⼊

   cd /usr/local/
   mkdir redis
   cd redis

3. 将 redis 安装包解压到 /usr/local/redis

   tar -zxvf /root/redis-6.2.5.tar.gz -C ./

   解压完之后， /usr/local/redis ⽬录中会出现⼀个 redis-6.2.5 的⽬录

二、编译安装

1. 编译并安装

   cd redis-6.2.5
   make && make install

三、将redis服务安装系统服务并后台启动

1. 进⼊ utils ⽬录，并执⾏下面命令

   cd utils/
   ./install_server.sh

   这步可能会报错

   Welcome to the redis service installer
   This script will help you easily set up a running redis server
   
   This systems seems to use systemd.
   Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!

   注释下面的代码 vim install_server.sh

   76行
   #bail if this system is managed by systemd
   #_pid_1_exe="$(readlink -f /proc/1/exe)"
   #if [ "${_pid_1_exe##*/}" = systemd ]
   #then
   #       echo "This systems seems to use systemd."
   #       echo "Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!"
   #       exit 1
   #fi
   #unset _pid_1_exe
   

2. 查看redis服务启动情况

   systemctl status redis_6379.service

   看状态是不是 Active: active (running) , 如果状态是 Active: active (exited)

   ● redis_6379.service - LSB: start and stop redis_6379
   Loaded: loaded (/etc/rc.d/init.d/redis_6379; bad; vendor preset: disabled)
   Active: active (exited) since 二 2021-09-14 16:46:05 CST; 8min ago
     Docs: man:systemd-sysv-generator(8)
     Process: 8528 ExecStart=/etc/rc.d/init.d/redis_6379 start (code=exited, status=0/SUCCESS)
   
   9月 14 16:46:05 localhost.localdomain systemd[1]: Starting LSB: start and stop redis_6379...
   9月 14 16:46:05 localhost.localdomain redis_6379[8528]: /var/run/redis_6379.pid exists, process is al...ed
   9月 14 16:46:05 localhost.localdomain systemd[1]: Started LSB: start and stop redis_6379.
   Hint: Some lines were ellipsized, use -l to show in full.
   

   Active: active (exited) 状态 删除pid文件

   cd /var/run
   rm redis_6379.pid 
   

   Active: active (exited) 状态 删除dump.rdb（内存快照）文件

    cd /var/lib/redis/6379
    mv dump.rdb dump.rdb_bak

   Active: active (exited) 状态

   ps -ef |grep redis
   kill -9 进程id(如果有)
   systemctl start redis

3. 设置允许远程连接, 编辑 redis 配置⽂件

   vim /etc/redis/6379.conf

   将 bind 127.0.0.1 修改为 0.0.0.0

   bind 0.0.0.0
   systemctl restart redis_6379.service

4. 设置访问密码

   vim /etc/redis/6379.conf

   找到 #requirepass foobared 去掉注释，修改foobared为⾃⼰想要的密码，保存即可。

   requirepass admin

   保存，重启 Redis 服务即可

   systemctl restart redis_6379.service