memcache

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slantview's picture

New Release: Cache Router 1.0-rc1

Spent A LOT of time over the past few days really getting into the bugs in Cache Router. This module is now entering the 1.0 release candidate world. It now "just works". For a lot of people it should be as easy as installing the module, adding the configs to settings.php and watching your site be 20-50% faster.

For bigger sites, this module will allow you to scale to great heights using memcache.

Here you go: 1.0-rc1 release - http://bit.ly/CMRRW Project page: http://drupal.org/project/cacherouter

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ducdebreme's picture

Performance gain with Memcached on Windows?

I just have tested memcached on Windows/Apache to investigate, if a performance can be expected.
I was very surprised, but it seems that memcached does not perform better than the Drupal built-in DB-Caching mechanism.
I am very curious, if anybody else had different results.

Detailed information follows.

My environment
- Windows XP
- Apache/2.0.61 (Win32)
- PHP Version 5.2.6
- MySQL 5.0.77
- Memcache 1.2.6
All installed on single box.

I have set up two environments with copies of the same DB.

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Jonah Ellison's picture

New module: Authenticated User Page Caching (Authcache)

Authcache offers page caching for logged-in authenticated users. This allows Drupal to load pages in 1-2 milliseconds and take the load off the the database & processor. Please help test this module (the site I was creating this for got axed, but I continued development on this module). Feedback & patches are welcome. This module can be used for anonymous users (it's faster than Drupal core since the database won't be hit), supports the statistics module, and can cache blocks of user-customized content.

Many thanks to Steve Rude for his work on the Cache Router module, which Authcache uses as its caching system.

This is how it works:

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kyle_mathews's picture

Add Squid on single-server setup?

Quick question -- I run a (smallish) community site on a single dedicated server that is roughly 80% anonymous traffic. I've already installed memcache and apc on my server and tuned mysql etc. so things are running pretty good. In investigating how to make my site run as fast as possible, I've run across mention of squid.

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blender1968's picture

Best practices for Drupal sessions in memcached?

Hi All,

I'm using memcache module for cache tables.

Now I am interested in doing some testing of using memcache for sessions.

In production we are using RHEL and CentOS in testing so for setup of memcached I'm using the start-memcached and memcached init scripts offered here:

http://www.dev411.com/wiki/Memcached_startup_files_for_Red_Hat_(RHEL)

This uses a /etc/memcached.conf which looks something like this:

-u apache
-d
-m 32
-l 127.0.0.1
-p 11211

Based on info contained within this thread:

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greg.harvey's picture

Memcache options for Drupal 6.x - your opinions please

Hi all,

I initially posted here in the forums, but catch suggested I should post here: http://drupal.org/node/362511

Duplicate content, but here's the post again:

Just throwing this out there. I have been using the Cache Router module to implement Memcache in Drupal 6.x. It says it "refactored" the Memcache API module to include Memcache support, which seems a bit odd. But it works.

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slantview's picture

Tuning a high traffic Drupal 6 site

Here is my initial post about performance tuning our site http://www.divx.com/ This is mainly a place for me to brain dump and spark discussion and hopefully open up issues to track and get some of these fixes into Drupal core.

Servers

4 - Web servers with 8GB Memory each, Apache 2.2.x + PHP 5.2.x
2 - Memcache Servers with 8 GB Memory each. 9 bins per server
2 - Database Servers with 16GB each running MySQL 5.0.x

Traffic

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joshk's picture

Utilizing Multiple Caching Strategies?

Last night I (finally) updated my (ultra-simple) personal website to 6.0, and while I was at it I decided to try out some caching ideas that had been brewing in the back of my mind for a while.

Though all caching strategies have their pitfalls and drawbacks, the idea I wanted to try -- combining Boost and Memcache -- seems like a real live-wire. However, if it can be made to work, I think it might offer some significant advantages.

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slantview's picture

First Cache Router release for Drupal 7

Hello Drupal world!

I released beta1 of the 7.x branch of Cache Router over the holiday. The new release passes all Core Cache Tests for APC, File, Database, eAccelerator, and Memcache. XCache is currently broken, and I'm working to get that engine working again as well.

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cdoyle's picture

Inordinately high memcache miss rate on Drupal 5 questions

I've run into what seems to be a problem with memcache. Memcache has a gig of memory and generally sits at around 85% full with over 50% cache misses. The site has been hit with some traffic spikes of around 40k+ visitors per hour (mostly anonymous visits) and this has been enough to take it down (with the additional traffic to another Drupal site running on the same servers). There are two fairly powerful web servers and I think that if memcache were working properly, things would be fine.

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