Author: esby
Description:
Reported the issue on Commons Village Pump
https://commons.wikimedia.org/wiki/Commons:Village_pump#Missing_thumbs_for_big_image_.28jpg.29
It might be a bug or a feature:
The issue appears on some recent and large jpg files uploaded:
There is basically no thumb showing up.
When trying to generate the thumb again:
Error creating thumbnail: convert: Insufficient memory (case 4) `/mnt/upload6/wikipedia/commons/6/6d/Night_Panorama_of_the_Potsdamer_Platz_-_Berlin_-_2012-06-03_-_P1400487-P1400537.jpg' @ error/jpeg.c/EmitMessage/235.
convert: missing an image filename `/tmp/transform_4597d64-1.jpg' @ error/convert.c/ConvertImageCommand/2970.
Note: this file, similar in size and resolution (but a bit lower) got a thumb generated: https://commons.wikimedia.org/wiki/File:Alte_Nationalgalerie_-_Berlin_-2012-0603-_P1400420-P1400427.jpg
I can see two possibles causes:
- a max width issue ? ( 16069 < 16384 (limit?) < 20k )
- a max memory issue: 37,91 MB < limit somewhere ? < 38,39 MB )
This also seems related to imagemagick,
http://sourceforge.net/apps/trac/gallery/ticket/1513
the setting being near 38 MB if she second possibility applies.
Old images bigger than the one causing problems have thumbs on commons:
eg: http://commons.wikimedia.org/wiki/File:Panorama_de_La_Garde_depuis_la_chapelle_au_matin.jpg
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=37563