The Arcive of Official vBulletin Modifications Site.

Round Robin DNS and Vbulletin · **Released**: 05-28-2006

Hi all,

I am presently on 2 servers. One PHP server and one MySQL server. At times, I can run up against my limit on my PHP server, causing delays and slowdowns.

In order to improve that situation, I was hoping to spread the PHP server over two servers. Most easily, of course, doing a round-robin DNS. Now, I know the biggest issue is if one server goes down then I'm in trouble. Ignoring that issue... are there any other major issues to be aware of before moving forward?

I know that attachments will have to be consolidated on one server. I have done this for the most part. All attachments are being pointed to one specific subdomain on one server. The only real apparent issue with this is that once you upload a file from the attachment pop-up window, it won't javascript refresh the main message window to reflect the uploaded files. This is because once the upload is POSTed, it's on a different domain (the subdomain).

Anyhow, that's a minor issue.

Any others that I might run into? My understanding is that sessions are being held in the database, so that shouldn't be a problem when crossing servers.

thanks
arn

Erwin · #2 05-29-2006, 12:14 AM

No problems whatsoever - that's how I've set up my attachment server too - that minor script error is really not a huge issue. Round robin works very well with vB.

DaiTengu · #3 05-30-2006, 05:01 AM

I find it's easiest to throw attachments on an NFS Share as they don't generate a lot of disk i/o.

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.03762 seconds Memory Usage 2,203KB Queries Executed 18 (?)
More Information
Template Usage: (1)SHOWTHREAD (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)ad_showthread_beforeqr (1)footer (1)forumjump (1)forumrules (1)gobutton (1)header (1)headinclude (1)modsystem_post (1)navbar (6)navbar_link (120)option (3)post_thanks_box (3)post_thanks_button (1)post_thanks_javascript (1)post_thanks_navbar_search (3)post_thanks_postbit_info (2)postbit (3)postbit_onlinestatus (3)postbit_wrapper (1)spacer_close (1)spacer_open (1)tagbit_wrapper Phrase Groups Available: global inlinemod postbit posting reputationlevel showthread	Included Files: ./showthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/functions_bigthree.php ./includes/class_postbit.php ./includes/class_bbcode.php ./includes/functions_reputation.php ./includes/functions_post_thanks.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_postinfo_query fetch_postinfo fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete showthread_start showthread_getinfo forumjump showthread_post_start showthread_query_postids showthread_query bbcode_fetch_tags bbcode_create showthread_postbit_create postbit_factory postbit_display_start post_thanks_function_post_thanks_off_start post_thanks_function_post_thanks_off_end post_thanks_function_fetch_thanks_start post_thanks_function_fetch_thanks_end post_thanks_function_thanked_already_start post_thanks_function_thanked_already_end fetch_musername postbit_imicons bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete postbit_display_complete post_thanks_function_can_thank_this_post_start tag_fetchbit_complete forumrules navbits navbits_complete showthread_complete
Messages:

The Arcive of Official vBulletin Modifications Site.

It is not a VB3 engine, just a parsed copy!