PrimetonDWS

Appearance

安装部署/微服务版(MicroApp)安装指南/安装环境准备/Redis安装指南

Redis安装指南 ​

必备软件安装

1. 安装G++编译器 ​

bash
 yum install -y gcc-c++

2. 下载Redis ​

  • 下载Redis

    bash
    wget http://download.redis.io/releases/redis-6.2.5.tar.gz

  • 解压

    bash
    tar -zvxf redis-6.2.5.tar.gz

  • 移动到指定目录

    bash
    mv redis-6.2.5 redis /usr/local/redis

redis安装 ​

1. 编译 ​

bash
cd /usr/local/redis
make
shell
例如：
[root@192 redis]# pwd
/usr/local/redis
[root@192 redis]# make

2. 安装 ​

bash
make install PREFIX=/usr/local/redis/ 后面的是你想要安装的路径
shell
例如：
[root@192 redis]# make install PREFIX=/usr/local/redis 
cd src && make install
make[1]: Entering directory `/usr/local/redis/src'
  CC Makefile.dep
make[1]: Leaving directory `/usr/local/redis/src'
make[1]: Entering directory `/usr/local/redis/src'

Hint: It's a good idea to run 'make test' ;)

  INSTALL install
  INSTALL install
  INSTALL install
  INSTALL install
  INSTALL install
make[1]: Leaving directory `/usr/local/redis/src'
说明:

这里多了一个关键字 PREFIX= 这个关键字的作用是编译的时候用于指定程序存放的路径。比如我们现在就是指定了 redis 必须存放在 /usr/local/redis 目录。假设不添加该关键字 Linux 会将可执行文件存放在 /usr/local/bin 目录，库文件会存放在 /usr/local/lib 目录。配置文件会存放在 /usr/local/etc 目录。其他的资源文件会存放在 usr/local/share 目录。这里指定号目录也方便后续的卸载，后续直接rm -rf /usr/local/redis 即可删除 redis。

3. 修改配置 ​

  • redis 配置文件修改，将源代码目录中的配置文件 redis.conf 拷贝到 redis 安装路径目录下
  • 将 bind 配置修改为：
    bash
    bind * -::*
  • 将 notify-keyspace-events 属性的值改为K$g
  • 将 protected-mode 属性的值由 yes 改为 no
  • 将 daemonize 属性的值由 no 改为 yes
  • 将 logfile 属性的值改为本机日志存放路径(此路径需要先创建，只需创建到 log 即可)
properties
logfile "/home/primeton/redis-5.0.8/log/redis.log"
  • 将 dir 属性的值改为本机 rdb/AOF 文件的存放路径(此路径需要先创建)
properties
dir /home/primeton/redis-5.0.8/redis
说明:

bind属性为:绑定的IP。与protected-mode属性关联使用，此处暂且取消IP绑定，可根据实际情况而定。
notify-keyspace-events属性为:事件通知。
protected-mode属性为:是否开启保护模式。如关闭，则外部网络可直接访问；如开启，则需配置bind ip或者设置访问密码。此处暂且关闭，可根据实际情况而定。
daemonize属性为:是否开启后台启动。开启后可确保控制台关闭后，进程在后台继续正常运行。

4 . redis验证 ​

  • 启动redis 根据上面的操作已经将redis安装完成了。在目录/usr/local/redis 输入下面命令启动redis

    bash
    ./bin/redis-server ./redis.conf

    启动后界面

    bash
     [root@192 redis]# ./bin/redis-server ./redis.conf
  8305:C 14 Jul 2022 03:11:47.631 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
  8305:C 14 Jul 2022 03:11:47.631 # Redis version=5.0.12, bits=64, commit=00000000, modified=0, pid=8305, just started
  8305:C 14 Jul 2022 03:11:47.631 # Configuration loaded
  8305:M 14 Jul 2022 03:11:47.631 * Increased maximum number of open files to 10032 (it was originally set to 1024).
                  _._                                                  
          _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 5.0.12 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
  (    '      ,       .-`  | `,    )     Running in standalone mode
  |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
  |    `-._   `._    /     _.-'    |     PID: 8305
  `-._    `-._  `-./  _.-'    _.-'                                   
  |`-._`-._    `-.__.-'    _.-'_.-'|                                  
  |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
  |`-._`-._    `-.__.-'    _.-'_.-'|                                  
  |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

  8305:M 14 Jul 2022 03:11:47.634 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
  8305:M 14 Jul 2022 03:11:47.634 # Server initialized
  8305:M 14 Jul 2022 03:11:47.634 # 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.
  8305:M 14 Jul 2022 03:11:47.634 # 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.
  8305:M 14 Jul 2022 03:11:47.634 * Ready to accept connections

    安装成功 按ctrl+c即可退出

  • 常用命令

    shell
    bin/redis-server redis.conf 根据配置文件启动
bin/redis-cli shutdown 停止