在CentOS 7下安装Redis

Redis
在CentOS下安装Redis也比较简单,按照步骤一步一步的操作,基本不会出错。

1、切换到/usr/src 目录(如果你安装在别的目录,注意后面要一些路径也要修改),下载Redis,目前最新的是2.8.13版本

cd /usr/src
wget http://download.redis.io/releases/redis-2.8.13.tar.gz

2、解压,切换目录

tar xzf redis-2.8.13.tar.gz
cd redis-2.8.13

3、编译

make
make install

4、打开redis.conf 修改配置文件,最关键是下面几行,其他的设置参考官方文档:

daemonize yes
bind 127.0.0.1
loglevel notice
logfile /var/log/redis.log
dir ./

5、设置系统的overcommit_memory,执行

vi /etc/sysctl.conf

在文件中添加一行,保存:

vm.overcommit_memory = 1

执行:

sysctl vm.overcommit_memory=1

6、添加启动脚本,执行:

vi /etc/init.d/redis

写入下面的代码,保存:

#!/bin/sh
#
# redis        Startup script for Redis Server
#
# chkconfig: - 90 10
# description: Redis is an open source, advanced key-value store. 
#
# processname: redis-server
# config: /etc/redis.conf
# pidfile: /var/run/redis.pid
 
REDISPORT=6379
EXEC=/usr/local/bin/redis-server
REDIS_CLI=/usr/local/bin/redis-cli
 
PIDFILE=/var/run/redis.pid
CONF="/usr/src/redis-2.8.13/redis.conf"
 
case "$1" in
    start)
        if [ -f $PIDFILE ]
        then
                echo "$PIDFILE exists, process is already running or crashed"
        else
                echo "Starting Redis server..."
                $EXEC $CONF
        fi
        if [ "$?"="0" ] 
        then 
              echo "Redis is running..."
        fi 
        ;;
    stop)
        if [ ! -f $PIDFILE ]
        then
                echo "$PIDFILE does not exist, process is not running"
        else
                PID=$(cat $PIDFILE)
                echo "Stopping ..."
                $REDIS_CLI -p $REDISPORT SHUTDOWN
                while [ -x ${PIDFILE} ]
               do
                    echo "Waiting for Redis to shutdown ..."
                    sleep 1
                done
                echo "Redis stopped"
        fi
        ;;
   restart|force-reload)
        ${0} stop
        ${0} start
        ;;
  *)
    echo "Usage: /etc/init.d/redis {start|stop|restart|force-reload}" >&2
        exit 1
esac

设置权限和开机启动:

chmod +x /etc/init.d/redis
chkconfig --add redis
chkconfig redis on

ok,现在就安装好了。启动redis使用service redis start 或者/etc/init.d/redis start ,停止redis的命令service redis stop 或者/etc/init.d/redis stop

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