Optimizing Drupal 6, Gain Performance and Stability!

September 29th, 2009 • 1 comment drupal, freebies, hack, memcache, memcached, tutorials

In general, Drupal will be sufficiently stable and performant enough to run your average website.  But when you are rebuilding your website or a website of your customer that gets tons of pageviews, you’ll start to encounter slowdowns, downtime & unexpected behaviour. Read more for Drupal 6 optimizing tips & tricks. Do note that I won’t be covering standard Drupal cache, I expect you to have this enabled already.

Read more »

Multiple memcache instances/servers on windows

May 11th, 2009 • 2 comments memcache, memcached, php, windows

Setting up memcache on windows is like taking candy from a baby. You can find all the information and the binaries for memcache at http://jehiah.cz/projects/memcached-win32/ . Note that these binaries will also work for x64 based windows.

A little trickier is to set up multiple instances of memcached on your windows machine. Basically you have to install the same memcache executable as many times as you want servers.

Installing memcache from the command line is simple:

sc create  "Memcached11211" binPath= "E:\webserver\memcached.exe -d runservice -p 11211 -m 128"  DisplayName= "Memcached11211" start= auto

Thus, for multiple instances this will be:

sc create  "Memcached11211" binPath= "E:\webserver\memcached.exe -d runservice -p 11211 -m 15"  DisplayName= "Memcached11211" start= auto
sc create  "Memcached11212" binPath= "E:\webserver\memcached.exe -d runservice -p 11212 -m 15"  DisplayName= "Memcached11212" start= auto
sc create  "Memcached11213" binPath= "E:\webserver\memcached.exe -d runservice -p 11213 -m 15"  DisplayName= "Memcached11213" start= auto
sc create  "Memcached11214" binPath= "E:\webserver\memcached.exe -d runservice -p 11214 -m 15"  DisplayName= "Memcached11214" start= auto
sc create  "Memcached11215" binPath= "E:\webserver\memcached.exe -d runservice -p 11215 -m 15"  DisplayName= "Memcached11215" start= auto
sc create  "Memcached11216" binPath= "E:\webserver\memcached.exe -d runservice -p 11216 -m 15"  DisplayName= "Memcached11216" start= auto
sc create  "Memcached11217" binPath= "E:\webserver\memcached.exe -d runservice -p 11217 -m 15"  DisplayName= "Memcached11217" start= auto
sc create  "Memcached11218" binPath= "E:\webserver\memcached.exe -d runservice -p 11218 -m 15"  DisplayName= "Memcached11218" start= auto
sc create  "Memcached11219" binPath= "E:\webserver\memcached.exe -d runservice -p 11219 -m 15"  DisplayName= "Memcached11219" start= auto
sc create  "Memcached11220" binPath= "E:\webserver\memcached.exe -d runservice -p 11220 -m 15"  DisplayName= "Memcached11220" start= auto
sc create  "Memcached11221" binPath= "E:\webserver\memcached.exe -d runservice -p 11221 -m 15"  DisplayName= "Memcached11221" start= auto
sc create  "Memcached11222" binPath= "E:\webserver\memcached.exe -d runservice -p 11222 -m 15"  DisplayName= "Memcached11222" start= auto

As you can see from the example above, you have to choose a different port for each memcache instance you are running.

memcache_connect() [function.memcache-connect]: Can’t connect to localhost:11211

May 11th, 2009 • 2 comments memcache, memcached, php, snippets

Encountered this error? It could be as simple as switching the host from localhost to 127.0.0.1

before:

<?php
$memcache_obj = memcache_connect('localhost', 11211);

after:

<?php
$memcache_obj = memcache_connect('127.0.0.1', 11211);