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 )

[jason|xoxide]

Ah... Bummer... vbGallery stops working when this is activated (just as with the memcache datastore). I wish they'd get around to fixing their code...

[Zia]

Originally Posted by goyo

It doesn't work well with the plugins. (Not only vBGallery, Geek Article System, and vBlogetin...it doesn't work with vBShout...)

hmm ..do u mind to listing them from ur end...
coz this too kool modification needed to be perfect(as much possible)

1. vBGallery
2. Geek Article System
3. vBShout

plz continue

[nix]

VBlogetin is working fine here.

[phpxcache]

Originally Posted by jason|xoxide

Ah... Bummer... vbGallery stops working when this is activated (just as with the memcache datastore). I wish they'd get around to fixing their code...

yup, i thought i can be vB_datastore_XCache plugin problem, but i copy the code from vB_datastore_APC, so it can also be problem of other plugin that isn't compatible with vB_datastore_*

thanks for your confirmation.

[Zachariah]

I have not installed this but I have fixed PhotoPost vBgallery to work with Memcache.
- I think it will support other external cache programs also.

The problem was the way the original scripts are designed.

I do not have a full list but I am changing old calls to datastore items for vBgalery 2.2.

EX:

New:

$categorycache =& $vbulletin->gallery_c_cache;
$galleryoptions =& $vbulletin->adv_gallery_opt;
$gallery_permissions =& $vbulletin->gallery_ugroups;

vs. old way

$categorycache = unserialize($vbulletin->gallery_c_cache);
$galleryoptions = unserialize($vbulletin->adv_gallery_opt);
$gallery_permissions = unserialize($vbulletin->gallery_ugroups);

I have a windows system w/ memcache enabled and the gallery working with the new changes. With the current code in the gallery APC, Memcached setting stop the gallery from working.


I will also change the code to build datastore.

New:

build_datastore('name',serialize($field),1);

Old:

build_datastore('name',serialize($field));

Changes as these may also fix other scripts out there.

[da420]

I applied the patch, and all I get is a blank page when accessing the forum.

[Zia]

yet no errors...
its working...
confused why wont work for u :S

[Mudvayne]

Works like a charm. I was supposed to install this 7 days ago. But I was having weird connection problem . Thanks a lot m0o . Screenshot added to 1st page.

[dbirosel]

So if you have a big board going on, it's recommended to run something like this? I have many plugins installed, what plugins will it intefere with?

[phpxcache]

you'd better check if all your plugins works when vb_datastore is enabled (vb_datastore_xcache is only one of the datastores). may other vbulletin professional users give you advice