Comments on: WP-Cache Bug Strikes Back: Site Down 17 Hours

By: Arek

Arek — Thu, 14 Jan 2010 17:10:52 +0000

I just had the same blank page problem, only I can’t find wp_cache_ob_end function

It must have been changed in the previous version of WP cache (I’m using WP Super Cache 0.9.8)

By: Ajinkya

Ajinkya — Wed, 04 Nov 2009 03:22:20 +0000

I had encountered this issue for the most of the times ,when i was using freehostia , these wp bugs will take a lot of time, finally happy with blogger !

By: Martijn de Visser

Martijn de Visser — Sun, 09 Nov 2008 22:56:57 +0000

I have encountered the same issue, especially after changing a post or page, WP-Cache sometimes seems to make my WP installation unresponsive. Disabling it and then manually removing all files from the ‘cache’ folder and the ‘advanced-cache’ link (using FTP) helps, but is of course far from ideal. Hope this can be fixed in a future release.

By: Beetlejuice

Beetlejuice — Tue, 06 Nov 2007 04:51:44 +0000

Dreamhost have a fix for this problem in their Help pages:

1. Open /wp-content/plugins/wp-cache/wp-cache-phase2.php file* in your favourite text editor, where is the domain that you’re having troubles with EG: dreamhost.com/wp-content/plugins/wp-cache/wp-cache-phase2.php
2. Alternatively if that file is not in that location for some reason you can issue this command to find it from the directory: find . -name wp-cache-phase2.php
3. Locate the wp_cache_ob_end function
4. then inside that function find the line with: ob_end_clean(); (it should be line 219 or about)
5. and finally replace that line with: ob_end_flush();

http://wiki.dreamhost.com/WordPress#Blank_Pages

By: Robert Accettura

Robert Accettura — Sun, 28 Oct 2007 03:13:08 +0000

I’ve hard of this bug before but never seen it myself. It sounds as if the age of the cache isn’t being correctly handled.

wp-cache seems to use filemtime(), making me wonder if this is an issue mostly for those who use webhosts that mount their filesystem using NFS, or have some sort of file caching mechanism in place that can cause funny behavior from time to time.

By: Shivaranjan

Shivaranjan — Tue, 16 Oct 2007 01:57:33 +0000

You can use it in this same way until the plugin author fixes the bug. :)

By: Armen

Armen — Sat, 13 Oct 2007 10:40:56 +0000

Oh right…
That’s an interesting bug.

By: QuickOnlineTips

QuickOnlineTips — Sat, 13 Oct 2007 10:06:47 +0000

Armen – The WP-cache is set to clear every 1 hour by default. Maybe setting it up to a lesser time of half an hour might help. But the issue of cached pages = expired pages will still occur, though at a lower page number.

By: Armen

Armen — Sat, 13 Oct 2007 07:52:23 +0000

I think the problem would be fixed by simply clearing the cache every so often. If that could be automated, then that would probably fix the issue.

By: QuickOnlineTips

QuickOnlineTips — Wed, 10 Oct 2007 17:21:36 +0000

“Use it when your site gets dugg or slashdotted rather than every day.” – now that is a great idea Shivaranjan. It works for me that way… :-)