Last modified: 2014-10-23 07:29:06 UTC
Reported on https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical)#Image_problem Thumbnails of several embedded image (stored on commons) fail to show on enwiki, loading the thumbnail url gives: Error generating thumbnail The given path of the specified thumbnail is incorrect; expected 'e/e1/US_Navy_120209-N-XD935-302_Mass_Communication_Specialist_1st_Class_Shane_Tuck,_assigned_to_the_Expeditionary_Combat_Camera_Underwater_Photo_Team,_c.jpg/220px-US_Navy_120209-N-XD935-302_Mass_Communication_Specialist_1st_Class_Shane_Tuck,_assigned_to_the_Expeditionary_Combat_Camera_Underwater_Photo_Team,_c.jpg' but got 'e/e1/US_Navy_120209-N-XD935-302_Mass_Communication_Specialist_1st_Class_Shane_Tuck,_assigned_to_the_Expeditionary_Combat_Camera_Underwater_Photo_Team,_c.jpg/220px-thumbnail.jpg'. On commons everything looks fine. Example images which produce the bug: File:US Navy 120209-N-XD935-302 Mass Communication Specialist 1st Class Shane Tuck, assigned to the Expeditionary Combat Camera Underwater Photo Team, c.jpg File:1801 Cary Map of the East Indies and Southeast Asia ( Singapore, Borneo, Sumatra, Java, Philippines - Geographicus - EastIndies-cary-1801.jpg File:Antoine-François Callet - Louis XVI, roi de France et de Navarre (1754-1793), revêtu du grand costume royal en 1779 - Google Art Project.jpg
Appears to be accientally caused by f7be7e6a (Abbreviation threshold for files with long names was set to 140 for commons as a foreign repo, but kept at 160 on actual commons, thus breaking all files with a name between 140-160 bytes long)
Change 168239 had a related patch set uploaded by Brian Wolff: Partial revert f7be7e6a. Change commons abbrvThreshold back to 160. https://gerrit.wikimedia.org/r/168239
I wonder if it would be a good idea to also make expected name mismatches give a redirect instead of an error to prevent this sort of thing from causing explosions (And allow more mobility in changing the value in the future w/o breaking hotlinkers, or old values from parser cache)
Change 168239 merged by jenkins-bot: Partial revert f7be7e6a. Change commons abbrvThreshold back to 160. https://gerrit.wikimedia.org/r/168239
CScott deployed fix, so it should be resolved now. (Some cached pages may need to have ?action=purge done to them)
(In reply to Bawolff (Brian Wolff) from comment #1) > Appears to be accientally caused by f7be7e6a (Abbreviation threshold for > files with long names was set to 140 for commons as a foreign repo, but kept > at 160 on actual commons, thus breaking all files with a name between > 140-160 bytes long) Eventually we want to get rid of filenames in URLs completely (bug 64214). Although I suppose some form of redirect would still be needed at that point, to not break all hotlinks.
