Last modified: 2010-05-21 19:51:20 UTC

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Bug 9410 - Out of memory in diff
Out of memory in diff
Status: RESOLVED DUPLICATE of bug 7601
Product: Wikimedia
Classification: Unclassified
General/Unknown (Other open bugs)
unspecified
PC Windows XP
: Normal normal with 4 votes (vote)
: ---
Assigned To: Nobody - You can work on this!
http://en.wikipedia.org/wiki/Wikipedi...
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2007-03-24 17:04 UTC by Jayden54
Modified: 2010-05-21 19:51 UTC (History)
5 users (show)

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


Attachments

Description Jayden54 2007-03-24 17:04:30 UTC
It seems that the diff engine doesn't work when really large changes are made. 

The following diff demonstrates this problem:
http://en.wikipedia.org/w/index.php?title=Sanskrit&diff=117546265&oldid=117458836

If you look at the diff it appears as if no changes at all have been made, but
in reality around 64,000 characters were removed. Obviously something is wrong
as a message is also displayed: "Out of memory in diff."
Comment 1 nryan 2007-03-29 00:39:12 UTC
It's now occurring with small changes also:

http://en.wikipedia.org/w/index.php?title=Criticism_of_Islam&curid=2394308&diff=118645774&oldid=118547252
Comment 2 Hesperian 2007-03-29 13:36:59 UTC
Don't know if this helps, but here's another example where only one character
was changed:
http://en.wikipedia.org/w/index.php?title=Surat_Basin&diff=next&oldid=117464012
Comment 3 Tim Starling 2007-03-29 17:34:47 UTC
The changes are not really large. Those diffs would only require a few hundred
KB. The problem is probably that some servers (srv51, srv69, srv103) are
swapping and are probably experiencing transient out of memory conditions.
Comment 4 Thomas Goldammer 2008-02-16 20:10:56 UTC
Hoi. Found a new one outside enwiki: http://de.wikipedia.org/w/index.php?title=Wikipedia:Entsperrw%C3%BCnsche&diff=prev&oldid=42600173
Comment 5 Bryan Baron 2009-09-23 20:29:12 UTC
I can't reproduce this. This bug is very old and looks like sporadic server problems. WORKSFORME?
Comment 6 Chad H. 2010-05-21 19:51:20 UTC

*** This bug has been marked as a duplicate of bug 7601 ***

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