Detailed explanation of how to configure Memcache in Drupal7_PHP tutorial

This article will give you a detailed introduction to the method of configuring Memcache in Drupal7. I hope this method will be helpful to you.

I won’t go into details about the configuration of Memcache. Drupal has many modules and frequent database calls, so memcache is a necessary configuration in the Drupal site. This article briefly lists the configuration of memcache in Drupal7 for your convenience.

1. Install memcache service and start memcached.

2. Install drupal’s memcache module. (http://drupal.org/project/memcache)

3. Configure settings.php

代码如下	复制代码
$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';

Note that the file path of memcache.inc needs to be written correctly. As mentioned in the summary of Drupal module directory organization, we generally place the memcache module under the contrib folder, so the path may be sites/all/modules/ contrib/memcache/memcache.inc.
In addition, it is best to set memcache_key_prefix.

4. Multiple memcachd services.
By default, if memcache_servers and memcache_bins are not configured, Drupal will think that there is only one server, 127.0.0.1:11211. If there are multiple memcache instances, you need to add the following configuration.

The code is as follows

Copy code

$conf['memcache_servers'] = array(

代码如下	复制代码
$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' );

'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'

);

代码如下	复制代码
/etc/sysconfig/memcached

$conf['memcache_bins'] = array(

'cache' => 'default',

'cache_filter' => 'cluster2',

代码如下	复制代码
PORT="11211" USER="memcached" MAXCONN="1024" CACHESIZE="512" OPTIONS="" MULTIBUCKET="2" CACHESIZEARRAY[1]="1024" CACHESIZEARRAY[2]="128"/etc/init.d/memcached-multi

'cache_menu' => 'cluster2' );

Everything is ready. Finally, let’s explain how to configure multiple memcache instances on a single machine, that is, setting up a memcache cluster for a single machine. We need to modify two files, one is the startup script /etc/init.d/memcached-multi, and the other is the configuration file /etc/sysconfig/memcached. is used to configure the size of multiple memcache instances

The code is as follows	Copy code
PORT="11211" USER="memcached" MAXCONN="1024" CACHESIZE="512" OPTIONS="" MULTIBUCKET="2" CACHESIZEARRAY[1]="1024" CACHESIZEARRAY[2]="128"/etc/init.d/memcached-multi

is used to start the memcache cluster. (start, stop, restart)

代码如下

复制代码

#! /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 "" 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: {start|stop|status|restart|reload|force-reload|condrestart}"     exit 1 esac   exit $RETVAL

Now everything is ready.

http://www.bkjia.com/PHPjc/631492.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631492.htmlTechArticleThis article will give you a detailed introduction to the method of configuring Memcache in Drupal7. I hope this method will be useful to all students. So helpful. I won’t say much about the configuration of Memcache. Drupal due to the module...