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Bug 8016 - Purge objectcache table during upgrade and installation scripts


Summary:	Purge objectcache table during upgrade and installation scripts

Status:	RESOLVED FIXED

Product:	MediaWiki
Classification:	Unclassified
Component:	Installer (Other open bugs)
Version:	1.8.x
Hardware:	All All

Importance:	Normal enhancement (vote)
Target Milestone:	---
Assigned To:	Nobody - You can work on this!

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2006-11-23 00:12 UTC by Manuel Schneider
Modified:	2010-05-15 15:42 UTC (History)
CC List:	0 users

See Also:
Web browser:	---
Mobile Platform:	---
Assignee Huggle Beta Tester:	---

Attachments
introduce the new function purge_objectcache() and run it by default after updates. (677 bytes, patch) 2006-11-23 00:13 UTC, Manuel Schneider	Details
clean patch from an unmodified source file (function call was already included in old version) (842 bytes, patch) 2006-11-23 00:40 UTC, Manuel Schneider	Details
Show Obsolete (1) Add an attachment (proposed patch, testcase, etc.)

Description Manuel Schneider 2006-11-23 00:12:20 UTC

Changes made to the MediaWiki namespace weren't available after updating MediaWiki to version 1.8.2 after runnung 
maintenance/update.php.

The pages in MediaWiki namespace where still available with all their content, but neither Special:Allmessages nor 
the GUI showed the changes anymore.

After investigating with several updated and a freshly installed wiki with Brion he found out, that the reason was 
in the objectcache table.

We therefore agreed to include a purge cache function into maintenance/update.php to avoid this problem in future.

Comment 1 Manuel Schneider 2006-11-23 00:13:16 UTC

Created attachment 2764 [details]
introduce the new function purge_objectcache() and run it by default after updates.

Comment 2 Manuel Schneider 2006-11-23 00:40:50 UTC

Created attachment 2765 [details]
clean patch from an unmodified source file (function call was already included in old version)

Comment 3 Manuel Schneider 2006-11-30 12:19:36 UTC

right now I found out (on two different wikis on two different servers): If you don't clear the object cache after upgrading from 1.8.2 to 1.9alpha apache will start using 
up all CPU time.

After clearing the cache it worked smoothly.

Comment 4 Rob Church 2006-12-23 13:57:03 UTC

Fixed in r18531.

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