redis安装

cd /opt/

wget http://redis.googlecode.com/files/redis-2.4.14.tar.gz

tar zxvf redis-2.4.14.tar.gz<wbr></wbr>

cd redis-2.4.14

make

make install

cp redis.conf /etc/

cd src/

cp redis-benchmark redis-cli redis-check-dump redis-server /usr/local/bin

设置redis进程为后台守护进程:

sed -i "s/daemonize no/daemonize yes/g" /etc/redis.conf

启动：

redis-server /etc/redis.conf<wbr></wbr>

测试redis

#redis-cli <wbr></wbr>

redis 127.0.0.1:6379> set name bin

OK

redis 127.0.0.1:6379> get name

"bin"

redis 127.0.0.1:6379><wbr></wbr>

关闭redis服务

redis-cli shutdown <wbr></wbr>

redis服务关闭后，缓存数据会自动dump到硬盘上，硬盘地址为redis.conf中的配置项dbfilename dump.rdb所设定

强制备份数据到磁盘，使用如下命令

redis-cli save 或者 redis-cli -p 6380 save（指定端口）

vi /etc/sysctl.conf

vm.overcommit_memory = 1

设置内存分配策略（可选，根据服务器的实际情况进行设置）

/proc/sys/vm/overcommit_memory

可选值：0、1、2

0， 表示内核将检查是否有足够的可用内存供应用进程使用；如果有足够的可用内存，内存申请允许；否则，内存申请失败，并把错误返回给应用进程。

1， 表示内核允许分配所有的物理内存，而不管当前的内存状态如何。

2， 表示内核允许分配超过所有物理内存和交换空间总和的内存

然后应用生效：

sysctl –p

建立redis启动脚本：

vim /etc/init.d/redis

#!/bin/sh

#

# redis - this script starts and stops the redis-server daemon

#

# chkconfig: <wbr>- 85 15</wbr>

# description: <wbr>Redis is a persistent key-value database</wbr>

# processname: redis-server

# config: <wbr><wbr><wbr>/etc/redis.conf</wbr></wbr></wbr>

# config: <wbr><wbr><wbr>/etc/sysconfig/redis</wbr></wbr></wbr>

# pidfile: <wbr><wbr>/var/run/redis.pid</wbr></wbr>

# Source function library.

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

# Source networking configuration.

. /etc/sysconfig/network

# Check that networking is up.

[ "$NETWORKING" = "no" ] && exit 0

redis="/usr/local/bin/redis-server"

prog=$(basename $redis)

REDIS_CONF_FILE="/etc/redis.conf"

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

lockfile=/var/lock/subsys/redis

start() {

<wbr><wbr>[ -x $redis ] || exit 5</wbr></wbr>

<wbr><wbr>[ -f $REDIS_CONF_FILE ] || exit 6</wbr></wbr>

<wbr><wbr>echo -n $"Starting $prog: "</wbr></wbr>

<wbr><wbr>daemon $redis $REDIS_CONF_FILE</wbr></wbr>

<wbr><wbr>retval=$?</wbr></wbr>

<wbr><wbr>echo</wbr></wbr>

<wbr><wbr>[ $retval -eq 0 ] &amp;&amp; touch $lockfile</wbr></wbr>

<wbr><wbr>return $retval</wbr></wbr>

}

stop() {

<wbr><wbr>echo -n $"Stopping $prog: "</wbr></wbr>

<wbr><wbr>killproc $prog -QUIT</wbr></wbr>

<wbr><wbr>retval=$?</wbr></wbr>

<wbr><wbr>echo</wbr></wbr>

<wbr><wbr>[ $retval -eq 0 ] &amp;&amp; rm -f $lockfile</wbr></wbr>

<wbr><wbr>return $retval</wbr></wbr>

}

restart() {

<wbr><wbr>stop</wbr></wbr>

<wbr><wbr>start</wbr></wbr>

}

reload() {

<wbr><wbr>echo -n $"Reloading $prog: "</wbr></wbr>

<wbr><wbr>killproc $redis -HUP</wbr></wbr>

<wbr><wbr>RETVAL=$?</wbr></wbr>

<wbr><wbr>echo</wbr></wbr>

}

force_reload() {

<wbr><wbr>restart</wbr></wbr>

}

rh_status() {

<wbr><wbr>status $prog</wbr></wbr>

}

rh_status_q() {

<wbr><wbr>rh_status &gt;/dev/null 2&gt;&amp;1</wbr></wbr>

}

case "$1" in

<wbr><wbr>start)</wbr></wbr>

<wbr><wbr><wbr><wbr>rh_status_q &amp;&amp; exit 0</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>$1</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>;;</wbr></wbr></wbr></wbr>

<wbr><wbr>stop)</wbr></wbr>

<wbr><wbr><wbr><wbr>rh_status_q || exit 0</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>$1</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>;;</wbr></wbr></wbr></wbr>

<wbr><wbr>restart|configtest)</wbr></wbr>

<wbr><wbr><wbr><wbr>$1</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>;;</wbr></wbr></wbr></wbr>

<wbr><wbr>reload)</wbr></wbr>

<wbr><wbr><wbr><wbr>rh_status_q || exit 7</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>$1</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>;;</wbr></wbr></wbr></wbr>

<wbr><wbr>force-reload)</wbr></wbr>

<wbr><wbr><wbr><wbr>force_reload</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>;;</wbr></wbr></wbr></wbr>

<wbr><wbr>status)</wbr></wbr>

<wbr><wbr><wbr><wbr>rh_status</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>;;</wbr></wbr></wbr></wbr>

<wbr><wbr>condrestart|try-restart)</wbr></wbr>

<wbr><wbr><wbr><wbr>rh_status_q || exit 0</wbr></wbr></wbr></wbr>

<wbr><wbr>;;</wbr></wbr>

<wbr><wbr>*)</wbr></wbr>

<wbr><wbr><wbr><wbr>echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"</wbr></wbr></wbr></wbr>

<wbr><wbr><wbr><wbr>exit 2</wbr></wbr></wbr></wbr>

esac

然后增加服务并开机自启动：

chmod 755 /etc/init.d/redis<wbr></wbr>

chkconfig --add redis<wbr></wbr>

chkconfig --level 345 redis on<wbr></wbr>

chkconfig --list redis