Drupal7中配置Memcache方法详解

本文章来给各位同学详细介绍关于Drupal7中配置Memcache方法详解，希望此方法对各位同学会有所帮助哦。

Memcache的配置就不多说，drupal由于模块较多，数据库调用频繁，因此memcache是drupal站点中必备的配置，本文大概列一下Drupal7中关于memcache的配置情况，以方便大家查阅。

1. 安装memcache服务以及启动memcached。

2. 安装drupal的memcache模块。(http://drupal.org/project/memcache)

3. 配置settings.php

 $conf['cache_backends'][] = 'sites/all/modules/memcache/memcache.inc';
  // The 'cache_form' bin must be assigned no non-volatile storage.
  $conf['cache_class_cache_form'] = 'DrupalDatabaseCache';
  $conf['cache_default_class'] = 'MemCacheDrupal';
  $conf['memcache_key_prefix'] = 'something_unique';

注意，需要将memcache.inc的文件路径写正确，如Drupal模块目录组织方式总结中提到，我们一般将memcache模块会放置在contrib文件夹下面，因此路径可能是 sites/all/modules/contrib/memcache/memcache.inc。

此外memcache_key_prefix最好设置一下。

4. 多个memcachd服务。

默认情况下，如果不配置memcache_servers以及memcache_bins的话，Drupal会认为只有一个server，即127.0.0.1:11211，如果有多个memcache实例的话，需要添加如下配置。

$conf['memcache_servers'] = array(
  '10.1.1.1:11211' => 'default',
  '10.1.1.1:11212' => 'default',
  '10.1.1.2:11211' => 'default',
  '10.1.1.3:11211' => 'cluster2',
  '10.1.1.4:11211' => 'cluster2'
);
$conf['memcache_bins'] = array(
  'cache'  => 'default',
  'cache_filter' => 'cluster2',
  'cache_menu' => 'cluster2'
);

一切就绪。

最后讲解一下单台机器如何配置多个memcache实例，即单台机器的memcache集群搭建。

我们需要修改2个文件，一个是启动脚本/etc/init.d/memcached-multi，另一个是配置文件/etc/sysconfig/memcached。

/etc/sysconfig/memcached

是用来配置多个memcache实例的大小

PORT="11211"

USER="memcached"

MAXCONN="1024"

CACHESIZE="512"

OPTIONS=""

MULTIBUCKET="2"

CACHESIZEARRAY[1]="1024"

CACHESIZEARRAY[2]="128"/etc/init.d/memcached-multi

是用来启动memcache集群。（start、stop、restart）

#! /bin/sh

#

# chkconfig: - 55 45

# description: The memcached daemon is a network memory cache service.

# processname: memcached

# config: /etc/sysconfig/memcached

# pidfile: /var/run/memcached/memcached.pid

# Standard LSB functions

#. /lib/lsb/init-functions

# Source function library.

. /etc/init.d/functions

PORT=11211

USER=memcached

MAXCONN=1024

CACHESIZE=64

OPTIONS=""

MULTIBUCKET=""

if [ -f /etc/sysconfig/memcached ];then

. /etc/sysconfig/memcached

fi

[ -z "$MULTIBUCKET" ] && MULTIBUCKET=1

# Check that networking is up.

. /etc/sysconfig/network

if [ "$NETWORKING" = "no" ]

then

exit 0

fi

RETVAL=0

prog="memcached"

start () {

echo -n $"Starting $prog: "

# insure that /var/run/memcached has proper permissions

if [ "`stat -c %U /var/run/memcached`" != "$USER" ]; then

chown $USER /var/run/memcached

fi

for i in `/usr/bin/seq 1 $MULTIBUCKET`; do

THISCACHESIZE=$CACHESIZE

[ ${#CACHESIZEARRAY[*]} -gt 0 -a ${CACHESIZEARRAY[$i]:-0} -gt 0 ] && THISCACHESIZE=${CACHESIZEARRAY[$i]}

daemon --pidfile /var/run/memcached/memcached.pid memcached -d -p $PORT -u $USER -m $THISCACHESIZE -c $MAXCONN -P /var/run/memcached/memcached-$i.pid $OPTIONS

let RETVAL=$RETVAL+$?

let PORT=$PORT+1

done

echo

[ $RETVAL -eq 0 ] && touch /var/lock/subsys/memcached

}

stop () {

echo -n $"Stopping $prog: "

for i in `/usr/bin/seq 1 $MULTIBUCKET`; do

killproc -p /var/run/memcached/memcached-$i.pid /usr/bin/memcached

let RETVAL=$RETVAL+$?

done

echo

if [ $RETVAL -eq 0 ] ; then

rm -f /var/lock/subsys/memcached

rm -f /var/run/memcached.pid

fi

}

restart () {

stop

start

}

# See how we were called.

case "$1" in

start)

start

;;

stop)

stop

;;

status)

echo "Warning: This status check is laughable. Inspect netstat or ps output manually."

status memcached

;;

restart|reload|force-reload)

restart

;;

condrestart)

[ -f /var/lock/subsys/memcached ] && restart || :

;;

*)

echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"

exit 1

esac

exit $RETVAL

至此一些就绪。

教程链接:

随意转载~但请保留教程地址★