Board Optimization - datastore cache to XCache - boost your vBulletin

中文用户讨论@vbulletin-china.cn

(note: do not apply this patch on vBulletin 3.7 as it's included already)
This patch allow you to use XCache as a datastore cache in vBulletin. This is definitely your choice if you have installed and enabled XCache on you server already.

Take care that this is a beta version and was not heavily tested. And i'm not familiar with vBulletin source code as i just started reading it today, but i don't have any difficulty reading it thanks to my years of php skill

Take aware that some vB plugin is not compatible with vB_datastore_*, not just vB_datastore_XCache. So, in case you find vB_datastore_XCache won't work, you'd better try datastore to file or memcache. If one of the others works but not vB_datastore_XCache, do report it to me so i can fix it.

Pre-requirement

• a working php installtion
• a working vBulletin 3.6.5 installtion
• a working XCache installtion
• set "xcache.var_size = 10M" or so in php ini

Install the modification
for those of you who can't run "patch", u may patch the file manually

• download Attachment 61372 (class_datastore_xcache.php)
• save the file as vBulletin.3.6/upload/includes/class_datastore_xcache.php
• open vBulletin.3.6/upload/includes/class_datastore.php in your favor editor
• add a line in class_datastore.php (see below)
• update upload/includes/config.php to enable it (see below)

example class_datastore.php after modification:

PHP Code:

        }
        return true;
    }
}

// add class_datastore_xcache, enable it in config.php
require_once(DIR . '/includes/class_datastore_xcache.php');

/*======================================================================*\
|| ####################################################################
|| # Downloaded: 12:33, Fri Mar 2nd 2007
|| # CVS: $RCSfile$ - $Revision: 15474 $
|| ####################################################################
\*======================================================================*/ 


example config.php after modification:

PHP Code:


    // vB_Datastore_Filecache  - for using a cache file
// $config['Datastore']['class'] = 'vB_Datastore_Filecache';
$config['Datastore']['class'] = 'vB_Datastore_XCache';
    // vB_Datastore_Memcached - for using a Memcache server
    // It is also necessary to specify the hostname or IP address and the port the server is listening on 


Trouble Shooting
q. i have multiple vBulletin instance installed, the seems to mix data after install this plugin
a. this applies to apc too because, if you wanna fix it, try
open class_core.php, look for:
$this->prefix =& $this->registry->config['Datastore']['prefix'];
and modify to:
$this->prefix = $this->registry->config['Datastore']['prefix'] . $_SERVER['SERVER_NAME']; // or HTTP_HOST

q. Warning: unserialize() expects parameter 1 to be string, array given in $a.php on line $b
a. upgrade your plugin/hack that $a.php belongs to, e.g. vbjournal/vbgallery etc. OR open $a.php and locate at line $b, remove unserialize call, e.g.:
replace $var = unserialize($this->data);
with $var = $this->data;
be careful do not remove the whole line, just the unseralize( and )

[Freezerator]

Really nice mod. Has anyone tested this with vbSEO?

Also waiting till the vbadvanced bug is confirmed of fixed
Keep up the great works on this one!

[nix]

Originally Posted by Freezerator

Really nice mod. Has anyone tested this with vbSEO?

Also waiting till the vbadvanced bug is confirmed of fixed
Keep up the great works on this one!

I'm using it with vbSEO with no problems.

[Zia]

Originally Posted by Freezerator

Really nice mod. Has anyone tested this with vbSEO?

Also waiting till the vbadvanced bug is confirmed of fixed
Keep up the great works on this one!

www.golpo.net

vbseo 3 RC8 .Ioncube Version.

Working without any single issue.
but may be-...maybe...maybe...there will be conflict with Zend Version.

[magnus]

Originally Posted by Zia

www.golpo.net

vbseo 3 RC8 .Ioncube Version.

Working without any single issue.
but may be-...maybe...maybe...there will be conflict with Zend Version.

Yea, XCache will not work with Zend. They are mutually exclusive. I had to switch to ionCube.

[Zia]

ya magnus,
Zend(zend ext. manager) wont work with Xcache.
from the begeining we are on ioncube n its wroking flawless

[nix]

Also using Ioncube and have no issues with it so far.

vbSEO and vbadvanced both work.

[Zia]

Originally Posted by nix

Also using Ioncube and have no issues with it so far.

vbSEO and vbadvanced both work.

very strange.....vbAdvance CMPS is working for u w/o any probs...

some is facing problem..then must be they ar3 doing something wrong...

[Adrian Schneider]

vBlogetin doesn't use vBulletin's datastore functionality, which means this hack will not affect it.

[Code Monkey]

This is great, thanks for your work on this. It's working great for me. Except it kills vBadvanced. So I put the following in config.php until I figure out why.

PHP Code:

if(!defined('VBA_SCRIPT'))
{
    $config['Datastore']['class'] = 'vB_Datastore_XCache';
} 


I also found that if you are running more than one instance of vBulletin on the same server then you need to put the following above the declaration of the datastore class in config.php (above)

PHP Code:

$config['Datastore']['prefix'] = 'prefixchoice'; 


Of course you need to choose a unique prefix for each site. The table prefix will do.

[Code Monkey]

One thing I have noticed is that cron scripts that update the datastore for third party products don't update the copy in xcache.