Commit a88c06a9 authored by lyricnz's avatar lyricnz
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Initial commit. Documentation for installing and configuring memcache on

a Fedora Linux machine.
parent 64f98880
Fedora memcache + drupal walkthrough
1) Have a look at the background reading
A - http://www.danga.com/memcached/ (cache daemon)
B - http://pecl.php.net/package/memcache (PHP integration for memcache)
C - http://drupal.org/project/memcache (Drupal Module to use memcache)
2) Fedora RPMs are available for A and B above
http://dag.wieers.com/rpm/packages/memcached/
http://dag.wieers.com/rpm/packages/php-pecl-memcache/
I downloaded the SRPMs and rebuilt them. This may require installing some
extra RPMs into your system - rpm will tell you.
1003 wget http://dag.wieers.com/rpm/packages/memcached/memcached-1.2.1-4.rf.src.rpm
1004 rpmbuild --rebuild memcached-1.2.1-4.rf.src.rpm
1005 yum install libevent-devel
1006 rpmbuild --rebuild memcached-1.2.1-4.rf.src.rpm
1008 wget http://dag.wieers.com/rpm/packages/php-pecl-memcache/php-pecl-memcache-2.0.4-1.rf.src.rpm
1009 rpmbuild --rebuild php-pecl-memcache-2.0.4-1.rf.src.rpm
1010 yum install php-devel
1011 rpmbuild --rebuild php-pecl-memcache-2.0.4-1.rf.src.rpm
3) Installed RPMS
[root@yoursite ~]# rpm -Uvh /usr/src/redhat/RPMS/x86_64/memcached-1.2.1-4.rf.x86_64.rpm /usr/src/redhat/RPMS/x86_64/php-pecl-memcache-2.0.4-1.rf.x86_64.rpm
Preparing... ########################################### [100%]
1:php-pecl-memcache ########################################### [ 50%]
2:memcached ########################################### [100%]
[root@yoursite ~]#
4) Verify configuration. Change if required.
[root@yoursite ~]# cat /etc/sysconfig/memcached
PORT="11211"
USER="nobody"
MAXCONN="1024"
CACHESIZE="64"
OPTIONS=""
[root@yoursite ~]#
5) Activate memcache
[root@yoursite ~]# service memcached start
Starting Distributed memory caching (memcached): [ OK ]
[root@yoursite ~]# service httpd restart
Stopping httpd: [ OK ]
Starting httpd: [ OK ]
[root@yoursite ~]#
Check phpinfo() for memcached status. Mine said
memcache
memcache support enabled
Active persistent connections 0
Revision $Revision$
6) Optional. Install and enable 'devel' module. Configure it to show SQL
queries being executed. Log in, and check out / and /admin - see how many
SQL queries are run. In my case / took 156 queries, and /admin took 91.
Once you've patched Drupal as described below, even enabling and disabling
the Memcache module won't disable the use of memcache.
7) Download, install, follow steps in README.txt (move include file,
configure settings.php)
[simon@yoursite ~]$ cd /home/WHOEVER/www/SOMEWEBSITE.com/html/modules/
[simon@yoursite modules]$ wget -q http://ftp.osuosl.org/pub/drupal/files/projects/memcache-5.x-1.x-dev.tar.gz
[simon@yoursite modules]$ tar xfz memcache-5.x-1.x-dev.tar.gz
[simon@yoursite modules]$ cd memcache
[simon@yoursite memcache]$ mv memcache.inc ../../includes/
[simon@yoursite modules]$
Apply the default configuration to the bottom of your
DRUPAL/sites/default/settings.php file. If you have already configured
$cfg, you will need to add the element to the array instead of appending the
whole $cfg. The example below uses the default localhost:11211 server.
[simon@yoursite memcache]$ tail -3 ../../sites/default/settings.php
$conf = array(
'memcache_inc' => './includes/memcache.inc',
);
[simon@yoursite memcache]$
8) Enable the drupal module from /admin/build/modules (it's in the "Other"
section)
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