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Reverse proxy best practices

Posted by flapsjack on September 22, 2011 at 3:55pm

We have a site that is being built that will be a site-wide cms for the University I work at. The way it will work is the following:

The existing setup is just Apache serving static pages. These will be migrated into a single Drupal instance and not individual Drupal multisites. So it is now universityurl.edu/chemistry that serves the static content. Ideally, the same site can be recreated at cms.universityurl.edu/chemistry in Drupal, and once the chemistry department is happy with the new version, I can flip a switch (.htaccess or apache change), and universityurl.edu/chemistry is now being reverse proxied to cms.universityurl.edu/chemistry.

Varnish HTTP Accelerator Integration - The Varnish control terminal is not responding

Posted by alexus on September 27, 2011 at 5:24pm

I'm trying to use Varnish HTTP Accelerator Integration module ( http://drupal.org/project/varnish ) in our environment and I'm getting following error under "admin/settings/varnish"

Status: The Varnish control terminal is not responding at 172.16.0.110 on port 6082.

for troubleshooting purposes I did

telnet 172.16.0.110 6082

Trying 172.16.0.110...
Connected to 172.16.0.110.
Escape character is '^]'.

200 154

Varnish HTTP accelerator CLI.

Type 'help' for command list.
Type 'quit' to close CLI session.

quit

Stack recommendations for 1.5m pageviews / 250k unique users monthly

Posted by hfidge on September 28, 2011 at 3:51pm

Hiya,

Just starting to specify the stack for a rebuild job - looking to move onto D7 as long as the modules required for the build are sufficiently mature, otherwise it'll be D6 and probably based on Pressflow / Varnish / Memcache etc.

The site is transactional, so will require user accounts, but beyond that there won't be much (any?) user generated content bar from some contact forms / quote request forms etc.

This'll be the biggest site I've put together, so I'm interested to find some Drupal benchmarks for a site of this size, can anyone help?

Caching for authenticated users, but not Authcache

Posted by superfedya on October 3, 2011 at 4:55pm

Hi,

Please tell me which module I can use as cache system for authenticated users but not Authcache (it doesn't work cause the problems with phpbbforum module)?
For anonymous user I use Boost, but it seems not be recommended to enable the normal Drupal caching with Boost, is this right?

At the moment I installed:
Pressflow
Cache Router (via Memcache)
Path alias cache
Locale Cache
Authcache - not working

Another thing, it is good idea to replace Cache Router with Memcache API http://drupal.org/project/memcache?

http://drupal.org/node/1131468
For sessions caching it says:

BOA high performance setup on AWS

Posted by smira on October 3, 2011 at 11:42pm

Hello BOA users around the world. I would like to discuss a possible implementation of BOA in a High-Availability / High-Performance setup.

Preface:
I've been using BOA for my business infrastructure on a Linode VPS for almost a year. I've been working on a relatively large website for the past 6 months that will require some flavor of ha/ hp setup since it will serve well over 30k uniques a month and loads of video streaming.

Desired Architecture hosted on AWS
--------------------------------- Load Balancer ---------------------------------

Module idea for performance improvement for thumbnails

Posted by marcoka on October 4, 2011 at 5:24pm

Drupal7 only. I was just thinking about the following. A lot of people want to restrict access to thei high resolution images so they chose private but the also show small thumbnails to the public.
If you chose private all thumbnails will be private to causing bootstrap-galore on for example, gallery pages with 30 thumbs.

So the idea was to somehow create an image style that can be applied to save a chose preset (for example thumbnails) in private while saving the rest of the full resolution presets in private.

Off-load image thumbnail creation

Posted by marios88 on October 4, 2011 at 6:34pm

Hi all,

Even cheap modern digital cameras can take pictures up to 12MP. So there comes the problem:

A user will upload many large images that will have to be cropped and scaled down twice or more times to create thumbnails, resulting in high server load and memory usage.

Is there any way available or suggestions to offload image thumbnail creation to another machine in order to save critical resources?

Pressflow 6.19.94 & Boost: Browser refresh problem

Posted by mkalbere on October 4, 2011 at 8:32pm

Hi !
I got a pretty ennoying problem, I have boost activated, pages are correctly generated & served.
But when the user comes back, it gets the content from the browser cache instead of the newly generated "boost html file". You have to hit CTRL F5 to get the new content to be loaded.
I modified htaccess (as suggested here: http://drupal.org/node/1074304 & here http://drupal.org/node/1070232
### BOOST START ### AddDefaultCharset utf-8 FileETag MTime Size

Empty memcache bins

Posted by raintonr on October 5, 2011 at 9:06am

Hi all,

I have been having some performance problems on a Drupal multi-site installation. Or rather, some users have been complaining of poor performance so am investigating...

The site(s) in question (totals in the same DB) have over 10,000 users and serve up around 180K hits/72K pages a day. The site is a variety of images, forum, blogs, calendar, etc. but majority of traffic is in the forum. There are 26K nodes, 85K comments in the system.

How harmful is the PHP Input Format for items like basic blocks and Views Arguments?

Posted by carn1x on October 5, 2011 at 4:29pm

I've come into a Pressflow 6 site that needs speeding up, and has a fair amount of PHP Input Format usage for things like Views Arguments and on various blocks in order to provide simple things like base_path(). In my hunt to shave time off of page load times, is it worth much effort to try and move all PHP Input Format code into custom modules?

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