Last modified: 2006-11-21 16:47:07 UTC

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Bug 2479 - Cache key names dependent on DB name
Cache key names dependent on DB name
Status: RESOLVED FIXED
Product: MediaWiki
Classification: Unclassified
General/Unknown (Other open bugs)
1.7.x
All All
: Normal normal (vote)
: ---
Assigned To: Nobody - You can work on this!
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2005-06-21 21:01 UTC by Jamie Bliss
Modified: 2006-11-21 16:47 UTC (History)
0 users

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

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Description Jamie Bliss 2005-06-21 21:01:02 UTC 
If you are using a form of caching other than DB (memc, Turck, or eAccelerator),
the keys are dependent on the DB name. So if you have 2 wikis using the same DB
(with different prefixes), then their cache keys will overlap.

This isn't a problem when using DB cache because it using the table prefix.

My proposal to fix it would be to add $wgCacheKeyPrefix to DefaultSettings.php,
which defaults to &$wgDBname, then change all current code to use that (Or just
change the BagOStuff classes to prefix it).
Comment 1 Brion Vibber 2005-06-21 21:25:07 UTC 
Sensible thing would be to combine $wgDBname and $wgDBprefix.
Comment 2 Jamie Bliss 2006-05-27 05:14:00 UTC 
Still a problem in ParserCache.php and in LinkCache.php.
Comment 3 Rob Church 2006-11-21 16:47:07 UTC 
This was fixed in r16791.
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