Board Optimization - vB Accelerator

ported & significantly improved vb 3.8 branch.

This mod is suited for medium and big boards. It reduces server load, caused by thumnails and big attachments. Includes significant recommendations for server tuning, to speedup pages loading.

what's the problem with?

1. In original vB all thumbnails a downloaded via php. So, if you page contains 10-20 attached images, then each page php request will be followed by 10-20 thumbnails php requests. That's very bad.
2. When attachments body transfered via php, that's much more waisteful, than direct transfer of static file. Especially for big files.
3. Browser does lots of additional requests to static file, to check if modified
4. JS/CSS not compressed

what this mod does:

1. All thumbnails will have DIRECT links (served as static files). Much lower reply latency and server load.
2. If you have nginx webserver, you php-fcgi will not participate in file transfer any more. It will reply with X-Accel-Redirect header. Then nginx will proceed attachment as static file.
   • No more problems with multiple downloads of 10-mb files.
   • No needs to restrict attachments and full-size images for guests and search bots.
3. Static files are properly cached/compressed after tuning

how to install:

1. Make sure, attachments are stored on disk, NOT in database.
2. Make sure, that thumbnails are in web-accessible area. If not - reconfigure your web-server first.
3. Check manually, that you can download any .thumb file via browser.
4. !!! Tune cache/compression settings for static files (see example from next post)
5. Import product XML & tune settings.
6. Enjoy

This mod is developped here: http://github.com/rcdesign/vb-accelerator . Patches are welcome.

history:

0.9
- fixed path for duplicated attachments

0.8
- fixed back timestamp parameter & substitutions for XML output
- added conversion for assets.php thumbnails (in attachments manager)

0.7
- ported to vb4
- added basic CDN support for thumbnails

[ImmortalForums]

Originally Posted by Vitaly

This mod doesn't affect fullsize attachments, if you turn off "nginx acceleration" option.

If problem caused by this option, then absolute disk path can be wrong, or some rare nginx limitation for X-Accel-Redirect (see docs).

I can not figure out for the life of me the issue. I know the path is correct or the attachments wouldn't load in the first place. I checked the nginx docs there isnt anything I can really configure http://wiki.nginx.org/NginxXSendfile. Eh I will live without the feature.

[Vitaly]

What's in nginx error logs, when option is on?

[ImmortalForums]

Ok here is your error

2010/07/27 21:33:18 [error] 565#0: *17 open() "/var/www/immortalguild/html/uploads/2/2/6/2/9319.attach" failed (2: No such file or directory), client: 68.194.193.123, server: immortal-guild.net, request: "GET /attachment.php?attachmentid=9334&d=1279589679 HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "immortal-guild.net", referrer: "http://immortal-guild.net/threads/49537-Slippy"

My path to attachments is /uploads

CDN is at http://attachment.immortal-guild.net

The physical directory is /var/www/immortalguild/attachment/uploads
The physical web directory is /var/www/immortalguild/html

So it seems your mod isnt using the CDN URL with X-Accel-Redirect. Hopefully you can fix this. :-)

[Vitaly]

CDN is not used for X-Accel-Redirect, yes. It's for thumbnails only. It's better to keep attachments directory in forum root, and change nginx config for attachments domain (root path). Make mod work without CDN first, then play with domain aliases.

I'll check, what can be improved, but not right now.

[delmarva]

Thank you Vitaly!

[Taurus1]

Hi there. Will this work with LightSpeed?

[Taurus1]

Well, I installed it. Is there a clear way for me to check if it is working?

Thanks.

[sivaganeshk]

Hi, How to use Expire header functions ?

[MmS1]

hello i tried to install Nagns but i can't

i stuck here
/usr/local/nginx/sbin/nginx -t
[emerg]: invalid event type "rtsig" in /usr/local/nginx/conf/nginx.conf:11
configuration file /usr/local/nginx/conf/nginx.conf test failed
root@c134 [/usr]# /usr/local/nginx/sbin/nginx
[emerg]: invalid event type "rtsig" in /usr/local/nginx/conf/nginx.conf:11
Manual-Install-Nginx
http://www.vbulletin.com/forum/showt...lish-Espa%F1ol)

so can u help me

[punchbowl]

Do attachments have to be in a publicly available area for this to work e.g.

/srv/www/domain.com/public_html/attachments

or will it work at

/srv/www/domain.com/attachments

?