Linux操作系统安装memcached

进入下载目录

cd /usr/local 

安装libevent

wget https://github.com/libevent/libevent/archive/release-1.4.12-stable.tar.gz

由于memcached是基于libevent的，因此需要安装libevent，libevent-devel。

tar -zxvf libevent-1.4.12-stable.tar.gzcd libevent-1.4.12./configure  --prefix=/usr/local/libeventmakemake install

安装memcached

wget http://www.memcached.org/files/memcached-1.4.25.tar.gz

tar -zxvf memcached-1.4.25.tar.gzcd memcached-1.4.25./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent  --enable-64bit --enable-threadsmakemake install

PS:

--enable-64bit     64位系统需要这个参数 

--enable-threads   支持多线程 

启动memcache服务

/usr/local/memcached/bin/memcached -d -m 200 -u root -l 127.0.0.1 -p 11211 -c 1000 -P /var/run/memcached.pid

相关解释如下：-d选项是启动一个守护进程，-m是分配给Memcache使用的内存数量，单位是MB，这里是200MB-u是运行Memcache的用户，如果当前为 root 的话，需要使用此参数指定用户。-l是监听的服务器IP地址，如果有多个地址的话，我这里指定了服务器的IP地址127.0.0.1-p是设置Memcache监听的端口，我这里设置了11211，最好是1024以上的端口-c选项是最大运行的并发连接数，默认是1024，这里设置了256-P是设置保存Memcache的pid文件，我这里是保存在 /var/run/memcached.pid停止Memcache进程：# kill `cat/var/run/memcached.pid`也可以启动多个守护进程，但是端口不能重复

开机自启动

首先请登陆你的linux服务器在/etc/rc.d/init.d/目录下创建一个文件

touch /etc/init.d/memcached  

给启动脚本赋予执行权限

chmod +x /etc/init.d/memcached

接着用vi memcached来编辑这个文件
接着在memcached里面输入如下内容

#!/bin/bash  # Startup script for the memcached# chkconfig: 2345 55 45# description: The memcached daemon is a network memory cache service.# processname: memcached  # pidfile: /var/run/memcached.pid EXEC=/usr/local/memcached/bin/memcachedPIDFILE=/var/run/memcached.pidRETVAL=0  prog="memcached"  # Source function library.  . /etc/init.d/functions  # Source networking configuration.  . /etc/sysconfig/network  # Check that networking is up.  [ ${NETWORKING} = "no" ] && exit 0  [ -x $EXEC ] || exit 0  # Start memcached daemons functions.  start() {     if [ -e $PIDFILE ];then        echo "memcached already running...."        exit 1     fi     echo -n $"Starting $prog: "     daemon $EXEC -d -p 11211 -u root  -m 128 -c 1024 -P $PIDFILE   RETVAL=$?     echo     [ $RETVAL = 0 ] && touch /var/lock/subsys/memcached    return $RETVAL  }  # Stop memcahced daemons functions.  stop() {          echo -n $"Stopping $prog: "          killproc memcached        RETVAL=$?          echo          [ $RETVAL = 0 ] && rm -f /var/lock/subsys/memcached $PIDFILE}  # See how we were called.  case "$1" in  start)          start          ;;  stop)          stop          ;;  restart|reload)          stop          start          ;;  status)          status $prog          RETVAL=$?          ;;  condrestart)          [ -f /var/lock/subsys/memcached ] && restart || :        ;;  *)          echo $"Usage: $prog {start|stop|restart|reload|status|condrestart}"          exit 1  esac  exit $RETVAL  

添加服务

chkconfig --add memcached

设置开机启动

chkconfig --level 35 memcached on  

查看是否设置成功

chkconfig --list | grep memcached