安装环境说明： {#articleHeader0}

操作系统：Centos 6.5 -64bit

安装路径：/usr/local/memcached

开始编译memcached {#articleHeader1}

安装编译需要的扩展包

yum install libevent libevent-devel

开始编译memcached

tar -zxvf memcached-1.4.21.tar.gz
cd memcached-1.4.21
./configure --prefix=/usr/local/memcached
make
make install

安装PHP memcache 扩展包

tar -zxvf memcache-2.2.7.tgz
cd memcache-2.2.7
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config 
make 
make install
安装成功后会输出这个地址，这是php扩展模块文件夹
/usr/local/php/lib/php/extensions/no-debug-non-zts-20100525/

创建memcached自启动脚本

#! /bin/sh
#
# chkconfig: - 55 45
# description:  The memcached daemon is a network memory cache service.
# processname: memcached
# config: /etc/sysconfig/memcached
Source function library - for other linux
#. /etc/rc.d/init.d/functions
Source function library - for suse linux
. /lib/lsb/init-functions
ip="192.168.25.129"             # 绑定侦听的IP地址
port="11211"                    # 服务端口
username="root"                 # 运行程序的用户身份
max_memory=64                   # default: 64M | 最大使用内存
max_connection=1024             # default: 1024 | 最大同时连接数
if [ -f /etc/sysconfig/memcached ];then
. /etc/sysconfig/memcached
fi
Check that networking is up.
if [ "$NETWORKING" = "no" ]
then
exit 0
fi
RETVAL=0
prog="memcached"
pidfile=/tmp/memcached.pid
basedir=/usr/local/memcached
cmd=${basedir}/bin/memcached
start () {
echo -n $"Starting service：$prog "
chown $username $basedir
$cmd -d -p $port -u $username  -m $max_memory -c $max_connection -P $pidfile $OPTIONS
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/memcached
return $retval
}
stop() {
echo -n $"Stopping service: $prog  "
current_user=$(whoami)
pidlist=$(ps -ef | grep $current_user | grep memcached | grep -v grep | awk '{print $2}')
for pid in $pidlist ; do
kill -9 $pid
if [ $? -ne 0 ]; then
return 1
fi
done
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/memcached
}
restart () {
stop
start
}
See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status memcached
;;
restart|reload)
restart
;;
condrestart)
[ -f /var/lock/subsys/memcached ] && restart || :
;;
*)
echo $"Usage: $0 {start|stop|status|restart|reload|condrestart}"
exit 1
esac
exit $?

脚本配置

# 将此脚本cp到/etc/init.d目录下并改名为memcached,然后增加执行权限
cp memcached /etc/init.d/memcached
chmod a+x /etc/init.d/memcached

配置开启自启动

chkconfig --add memcached              # 增加开启启动
chkconfig --level 2345 memcached on    # 设置启动级别

测试启动，停止，重启memcached

# 服务启动，停止
service memcached start
service memcached stop
init.d目录启动，停止
/etc/init.d/memcached start
/etc/init.d/memcached stop

配置PHP支持memcached

编辑php.ini文件

vim /usr/local/php/etc/php.ini
修改以下内容
extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20100525/"
增加扩展到php
extension = memcache.so

重新启动php-fpm

/etc/init.d/php-fpm restart

在php测试下是否成功

<?php $memcache = new Memcache (); 
$memcache->connect('192.168.25.129', 11211);
$memcache->set('key', 'test');
echo $memcache->get('key');

结果截图( 成功输出了缓存值 )：

总结 {#articleHeader5}

到这里我们memcache缓存就编译安装完成了，memcache是很强大的缓存系统，加油吧...