High Performance

This group is dedicated to solutions and approaches for high traffic, high performing Drupal sites. As such, it will deal with a lot of information around the rest of a typical Drupal "stack" -- the operating system, web server, database, and PHP tweaks that combine to support the Drupal application.

This is not a support channel or a place to post bug reports.

If you think you have found a bug, use the issue queue for the appropriate project.

If you need support, see http://drupal.org/support for options.

feedback on varnish mini-book (free): overview, tips, challenges, setup checklist, resources

Posted by tloudon on March 8, 2014 at 3:18am

Hello,

I created a mini-book (ie PDF) about Drupal and Varnish based on my experiences/lessons learned working on some pretty big sites.

I'm looking for feedback on it--I didn't really make it for me :) I made it in the hopes that it would be useful to the community at large; so please let me know what you think.

http://loudonco.com/blog/drupal-varnish-mini-book

Thanks!

Good query execution time but page execution time too high

Posted by ghankstef on February 26, 2014 at 10:23pm

We have a fairly high traffic site 1.5 million page views a month. The site uses a fairly standard Panels node override for displaying individual nodes. Left side gets node content such as title, content body and node comments. Right sidebar gets a latest stories block, an ad, and related stories block. Actually panels panes in most cases not blocks. We do run memcache and Varnish but we find that the traffic pattern always includes a number of uncached requests and scaling the site up mean delivering a single page as fast as possible.

Devel outputs this.

Advice needed for performance on a VPS...

Posted by train on February 25, 2014 at 5:28pm

I work for a web design company and part of our service is hosting for our clients. We buy hosting in the form of VPS accounts and put a certain number of clients on each account depending on their usage and the 'size' of the VPS.

For example, I have one VPS that has 1G of RAM and 32 cores and I run 12 sites each in their own cPanel, each with bandwidth anywhere from nothing to (at peak) 130G/month. I have another VPS with 5G of RAM, 16 cores and almost 50 sites with usage from nothing to 65G for a couple of them.

Memcached distributed problem

Posted by cbccharlie on February 19, 2014 at 4:07pm

Hi,

I have a drupal installation with two frontend servers, which have a memcached server in each. If I'm surfing the frontend 1 and the frontend 2 memcached goes down, the page stops loading correctly. Has anyone ever had this problem?

Thank you very much.

Optimizing admin UI for speed

Posted by Marko B on February 19, 2014 at 9:11am

I wrote a post here about this also but want to get some tips from this group if possible. https://drupal.org/node/2200175

What I want to know is how do you optimize drupal admin UI, or to be more exact how to make views admin UI react quicker or instantly.

I am looking for
-hacks(exclude something just for dev enviroment)
-raw power suggestions (use SSD (I do locally) use more ram, put DB in RAM somehow, use other type of DB)
-modules (memcache or some other, I use memcache for now)
-server setups (switch to prefork/worker apache, move to some other server nginx)

Most users logged - Slow load time

Posted by cbccharlie on February 13, 2014 at 10:00pm

Hello,

I have a Drupal with the majority of users logged

Approximately 25,000 pageviews per day.
Two front and two backend servers.
APC and Memcached installed.
Authcache for authenticated users.
Some 5,000 nodes and 20,000 reviews, about 20 types of content.
Approximately 100 modules.

The loading time of the web for a single user is about 3-5 seconds, but for 100 concurrent users are more than one minute.

What could be done?

Thank you very much.

Best Practice use of Nagios and Munin

Posted by vegantriathlete on February 10, 2014 at 4:04pm

I've got Nagios and Munin up and running for my infrastructure. Now I've got to figure out how to best utilize those tools so that I'm not wasting system resources in the process of monitoring the system!

I searched on "nagios" and "munin" to see if there were any posts that already addressed this question. I didn't find any that answered my specific questions. But, for the sake of starting out by adding some value with this post, here is the list of things that are at least relevant:
http://www.guidelightsolutions.com/blog/enhancing-nagios-monitor-drupal-...

How to optimize a Drupal 6.x site with 100,000+ nodes and 100+ content types

Posted by eeyorr on February 10, 2014 at 1:54am

I currently work on a Drupal 6.x site that has over 100,000 nodes and over 100 content types. Some content types have 45 or 50 fields. The developers who built the site originally wrote a custom module to display taxonomy pages for each content type. It's a directory listing site and the owner frequently adds new content types for different kinds of businesses, so the list keeps growing. Eventually, the developers started creating a new module for each new content type when the original module started getting big.

High performance mail sending out of Drupal site

Posted by playfulwolf on February 5, 2014 at 1:24pm

Hi there,

Building classified ads project which will use some heavy emailing: reminders, subscriptions, order confirmations and so on. Expect to be tens or hundreds thousand of emails per day. It may seem not huge quantity and standard Drupal email sending just works, but server and Drupal itself has more important tasks to do as sending batches of emails.
Which alternate and faster email sending modules would you recommend? Reliability and "set and forget" modules are also a priority.

Thank you!

Server overwhelmed by Menu

Posted by Anonymous on January 30, 2014 at 2:00am

Had a strange problem today that took my entire CentOS LAMP server offline. "top" command showed httpd using almost 100% of my CPU & a massive memory consumption within moments of starting up. "free -m" command would show the httpd process spiral up to consume all the RAM in less than one minute.

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