参考

• Running Redis in production

docker

docker pull redis:3.2.4

docker stop my-redis
docker rm my-redis
docker run -itd \
        --name my-redis \
        -p 6379:6379 \
        -v /Users/zll/tmp/my-redis/data/:/data \
        redis:3.2.4

docker start my-redis

docker exec -it my-redis bash

Cluster and Sentinel

每个 Redis 集群节点都要提供两个端口:

• 6379: 数据端口
• 16379: 集群端口,是数据端口号加上固定值 1000

Redis Cluster的作用: 将超过单机存储限制的数据分片存储在多台主机上。 Redis Sentinel的作用: 使用一主多从模式保证高可用性。

设计

假如 host2 宕机了, 则由 A@host1, B1@host1, C@host3 共通构成一个完整的集群。

安装

1. 创建系统用户redis，及所需的目录

    cd ~/Downloads
    wget http://download.redis.io/releases/redis-3.0.3.tar.gz
    tar xzf redis-3.0.3.tar.gz
    cd redis-3.0.3
    make
    make PREFIX=/data0/soft/redis/redis-3.0.3 install
   
    [root@localhost ~]# adduser -r -m  -d /data/software/redis redis
    [root@localhost ~]# passwd -l redis
   
    [root@localhost ~]# mkdir /data/store/redis
    [root@localhost ~]# chown -R redis:redis /data/store/redis
   
    [root@localhost ~]# mkdir /data/outputs/log/redis
    [root@localhost ~]# chown -R redis:redis /data/outputs/log/redis
   

2. 从Redis官网下载所需的安装包，或者查看文件共享：\\10.1.10.212\share\java\redis\。放到 /data/tmp/ 目录下，并解压：

    [root@localhost ~]# mkdir /data/tmp
    [root@localhost ~]# scp root@10.1.10.212:/data/share/java/redis/redis-2.8.7.tar.gz /data/tmp
    [root@localhost ~]# tar zxvf /data/tmp/redis-2.8.7.tar.gz -C /data/software/redis/
    [root@localhost ~]# chown -R redis:redis /data/software/redis/
   

3. 编译

    [root@localhost ~]# su - redis
    [redis@localhost ~]$ cd /data/software/redis/redis-2.8.7/
    [redis@localhost redis-2.8.7]$ make
   

4. 修改配置文件

    [root@localhost ~]# /data/software/redis/redis-2.8.7/redis.conf
      daemonize yes
      pidfile /data/store/redis/redis.pid
      port 6379
      dir /data/store/redis/
   

5. 从这里下载Redis的init.d脚本至 /etc/init.d/redis，修改后并启用

    [root@localhost ~] vi /etc/init.d/redis
      exec="/data/software/redis/redis-2.8.7/src/redis-server"
      pidfile="/data/store/redis/redis.pid"                                                                 # 应当与redis.conf中的配置保持一致
      REDIS_CONFIG="/data/software/redis/redis-2.8.7/redis.conf"
      REDIS_USER=redis
    [root@localhost ~]# chmod u+x /etc/init.d/redis
    [root@localhost ~]# chkconfig --add redis
    [root@localhost ~]# chkconfig --list redis
    [root@localhost ~]# chkconfig --level 345 redis on
   

6. 启动

    [root@localhost ~]# service redis start
   

TODO 上下合并

安装

1. 创建系统用户redis，及所需的目录

    adduser -r -m  -d /data/software/redis redis
    passwd -l redis
   
    mkdir /data/store/redis
    chown -R redis:redis /data/store/redis
   
    mkdir /data/outputs/log/redis
    chown -R redis:redis /data/outputs/log/redis
   

2. 从Redis官网下载所需的安装包。放到 /data/tmp/ 目录下，并解压：

    mkdir /data/tmp
    wget http://download.redis.io/releases/redis-2.8.14.tar.gz
    tar zxvf redis-2.8.14.tar.gz -C redis/
    chown -R redis:redis redis/
   

3. 编译

    su - redis
    cd /data/software/redis/redis-2.8.7/
    make
   

4. 修改系统设置

    vi /etc/sysctl.conf
    vm.overcommit_memory = 1
   
    sysctl vm.overcommit_memory=1
   

1. 修改配置文件 /data/software/redis/redis-2.8.7/redis.conf

    daemonize yes
    pidfile /data/store/redis/redis.pid
    port 6379
    dir /data/store/redis/
   
    unixsocket /tmp/redis.sock
    unixsocketperm 770
   

centos 6

1. 准备 init.d 脚本（可以搜索 redis rpm，找到rpm包后解压获取相应的init.d脚本，然后在再其基础上修改配置项） ```bash

   !/bin/sh

   #

   redis init file for starting up the redis daemon

   #

   chkconfig: - 20 80

   description: Starts and stops the redis daemon.

   Source function library.

   . /etc/rc.d/init.d/functions

   name="redis-server" exec="/home/redis/redis-2.8.12/src/redis-server" pidfile="/home/redis/redis-2.8.12/redis.pid" REDIS_CONFIG="/home/redis/redis-2.8.12/redis.conf" REDIS_USER=redis

   [ -e /etc/sysconfig/redis ] && . /etc/sysconfig/redis

   lockfile=/var/lock/subsys/redis

   start() {

    [ -f $REDIS_CONFIG ] || exit 6
    [ -x $exec ] || exit 5
    echo -n $"Starting $name: "
    daemon --user ${REDIS_USER-redis} "$exec $REDIS_CONFIG  --daemonize yes --pidfile $pidfile"
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
   

   }

   stop() {

    echo -n $"Stopping $name: "
    killproc -p $pidfile $name
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
   

   }

   restart() {

    stop
    start
   

   }

   reload() {

    false
   

   }

   rh_status() {

    status -p $pidfile $name
   

   }

   rh_status_q() {

    rh_status >/dev/null 2>&1
   

   }

case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    restart)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
        restart
        ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart}"
        exit 2
esac
exit $?
```
并修改其中的配置项 `vi /etc/init.d/redis`

```bash
exec="/data/software/redis/redis-2.8.14/src/redis-server"
pidfile="/data/store/redis/redis.pid"                                                                 # 应当与redis.conf中的配置保持一致
REDIS_CONFIG="/data/software/redis/redis-2.8.14/redis.conf"
REDIS_USER=redis
```
最后为 init.d 脚本修改权限

```bash
chmod u+x /etc/init.d/redis
chkconfig --add redis
chkconfig --list redis
chkconfig --level 345 redis on
```

1. 启动

    service redis start
   

centos 7

1. vi /usr/lib/systemd/system/redis.service

    [Unit]
    Description=Redis Server
    After=network.target
   
    [Service]
    Type=forking
    ExecStart=/usr/local/bin/redis-server /home/redis/redis.conf
    ExecStop=/bin/kill -15 $MAINPID
    PIDFile=/home/redis/redis.pid
    Restart=always
    User=redis
    LimitNOFILE=65535
   
    [Install]
    WantedBy=multi-user.target
   

2. systemctl enable redis

3. systemctl start redis