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Requests for new thumbnail sizes never return
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Description

Author: mr.heat

Description:
Steps to reproduce: Search for something in the Commons search. Try to step through the search result pages. Many thumbnails need to be recreated because nobody requested that thumbnail size for the last few weeks and it's not in a cache because of this. All these thumbnails will fail to load.

What "fail" means: The search result page displays but the thumbnails do not. The HTTP requests for the thumbnails never return. My browser (I'm using Opera) waits a minute but stops because nothing happened.

When I try to reload the pages the thumbnails are displayed sometimes.

When I step to the next search result page the same happens again. Loading the thumbnails needs two minutes or simply fails.


Version: wmf-deployment
Severity: major

Details

Reference
bz46243

Related Objects

Event Timeline

bzimport raised the priority of this task from to Normal.Nov 22 2014, 1:24 AM
bzimport set Reference to bz46243.
bzimport added a subscriber: Unknown Object (MLST).
bzimport created this task.Mar 17 2013, 5:05 PM
Reedy added a comment.Mar 17 2013, 5:12 PM

(In reply to comment #0)

Steps to reproduce: Search for something in the Commons search. Try to step
through the search result pages. Many thumbnails need to be recreated because
nobody requested that thumbnail size for the last few weeks and it's not in a
cache because of this. All these thumbnails will fail to load.

Thumbnails are cached for quite a long time.

$wgThumbnailEpoch = '20120101000000';

^ So it can be as far back as the start of 2012...

Seems to be working fine for me...

Where in the world are you?

mr.heat wrote:

Sorry, I'm in Germany. Here is the relevant part of my tracert to upload.wikimedia.org:

Routenverfolgung zu upload-lb.esams.wikimedia.org [91.198.174.234]:
[...]

8    52 ms    51 ms    76 ms  ge0-1-0-cr0.ixf.de.as6908.net [80.81.192.244]
9    59 ms    57 ms    57 ms  xe-5-1-0-core0.nknik.nl.as6908.net [62.149.50.42]

10 55 ms 55 ms 56 ms ge-2-2.br1-knams.wikimedia.org [78.41.155.38]
11 55 ms 56 ms 56 ms ve7.te-8-1.csw1-esams.wikimedia.org [91.198.174.250]
12 57 ms 57 ms 57 ms upload-lb.esams.wikimedia.org [91.198.174.234]

This bug is not new. The same happens every few weeks or so. I don't know if this is a duplicate. It's your (WMF) job to decide if it is. All I see is the problem constantly coming back.

Works for me too with Firefox and terms like "butterfly" or "house", being based in Czech Republic.

I can't reproduce this. This was also reported such a long time ago, there's a good chance that the issue got fixed in the mean time.

Please re-open if this is still an issue. (Also please include urls for some example thumbs that fail to render when reporting issues of this nature).

Gilles raised the priority of this task from Normal to Unbreak Now!.Dec 4 2014, 10:25 AM
Gilles moved this task from Untriaged to Done on the Multimedia board.
Gilles lowered the priority of this task from Unbreak Now! to Normal.Dec 4 2014, 11:21 AM