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Health Check Script?

Posted by jmccaffrey on June 12, 2011 at 6:17am

Does anyone have a good health check script that they use for load balancers to determine the health of a node? This would be something that would simply give the load balancer a true or false response. If fasle was returned, the load balancer would remove the un-healthy node.

More number of Feature export modules causing performance problems

Posted by pflame on June 16, 2011 at 4:01pm

I am doing performance optimization for a project. This project has total 269 modules, in this 181 are contributed modules, 56 are the features/panels export module. Remaining are the custom developed modules.

With these many number of modules enabled, the apache process is taking memory of around 189 - 250 MB of RAM.

Case Study or Statistics for Drupal on LAMP vs Windows-based stack?

Posted by caschbre on June 16, 2011 at 10:25pm

Has anyone performed any tests or know of a case study, etc. that would show how Drupal performs on a LAMP (or similar) stack vs a Windows based stack?

Or are there key elements in a typical high performance architecture that only runs on one stack or the other?

Two servers, one apache one MySQL

Posted by djudd on June 20, 2011 at 3:54pm

I am trying to add a second server to just run MySQL to our site. The first server would continue to run Apache.

I point the settings.php file to the new server, and everything is fine for a short time, then tables start locking, connecting fill up with Sleep processes, and the MySQL crashes.

Anyone have any ideas as to why this would be happening?

_

Posted by _-. on June 21, 2011 at 7:10pm

Have any idea to optimize the profile field query in D6?

Posted by bdsupport on June 24, 2011 at 5:57am

Such as

SELECT f.name, f.type, v.value FROM profile_fields f INNER JOIN profile_values v ON f.fid = v.fid WHERE uid = xxxx;

lots of this query in my slow_query_log which the execute time > 2s.

The power behind Speed Booster, Cache, Boost and AdvAgg

Posted by omega8cc on June 24, 2011 at 4:41pm

Our high performance Barracuda Octopus Aegir LEMP stack (BOA) has already a few levels and kinds of caching enabled or available, so it is important to understand how all those performance related modules and systems work to leverage all its power and avoid possible side effects or confusion.

APC Fragmentation Issue

Posted by Lloyd on June 28, 2011 at 1:08am

I've been trying to tweak APC. Right now I'm dealing with some fragmentation issues. They creep up over time to above 10-15%. Then APC restarts (not sure why). I've attached a copy of the apc.php results if anybody has any suggestions.

Thanks

APC regularly restarts after 10-20 minutes

Posted by sgdev on June 28, 2011 at 8:54pm

p>I have a site running Pressflow (Drupal 6), Varnish, Memcached, and APC with the Cache Router module. I'm unsure why but APC is restarting every 10-20 minutes. If I review the stats page (see the attached image) the uptime will increase to somewhere between 10 and 20 minutes. As I click the "refresh data" button I'll see a second cache set shown with an uptime of 0 or 1 minute, and each click of refresh data will toggle between uptime of 15 minutes and uptime of 1 minute. Eventually the 15 minute uptime disappears and I only see the 1 minute uptime...

Defining the Drupal 8 performance gate

Posted by webchick on June 29, 2011 at 6:37am
Last updated by owen barton on Mon, 2011-07-11 19:19

(From webchick:)

Hi there, performance team! :)

Back at DrupalCon Chicago, Dries outlined a strategy for Drupal 8 involving a series of "gates" that would help ensure core code quality in a number of different categories: Documentation, Performance, Accessibility, Usability, and Testing. The purpose of gates is to define essentially a set of "checkboxes" which outline the most important aspects to each category, and does so in a way that is both not overwhelming to core developers (list of hoops to jump through is kept as small as possible) and also creates very little additional burden on the team in question (contains sample links to documentation/resources so developers/reviewers can help themselves).

Since we have already traditionally had requirements around documentation, it made sense to start there. Jennifer Hodgdon and some other folks from the documentation team have put together the Documentation gate, which is available at http://drupal.org/node/1203498. What we need is a similar table for each of the other gate areas. And that's where you come in! :D

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