On Sat, 22 May 2010 16:13:55 +0000, Dan Nessett wrote: > On Sat, 22 May 2010 14:02:57 +0200, Platonides wrote: > >> Dan Nessett wrote: >>> To see what happens, I tried to convert the file manually from my >>> command line prompt. The command I used was >>> >>> convert -thumbnail 600x600 >>> International_Space_Station_Space_Shuttle_Atlantis_Sun_Transit_2010.png >>> thumb.png >>> >>> It worked perfectly. >>> >>> Might there be a problem related to the long file name? >> >> I don't think so. >> >> Try increasing the values $wgMaxShellMemory, $wgMaxShellFileSize, >> $wgMaxShellTime >> >> You can also enable debug and look for the line doTransform:Running >> custom convert command xxxx to find the exact command that is being >> run. > > Thanks. I will try all of these suggestions and report back. > > However, I did some research and it appears there is a long-standing > (over 3 years) bug that reports problems producing thumbnails for large > png files (see https://bugzilla.wikimedia.org/show_bug.cgi?id=9497). > This bug is still open, so it is possible I have run up against an > unresolved problem.
I tried increasing the values of $wgMaxShellMemory and $wgMaxShellFileSize, first from 102400 to 409600 and then to 819200 (these values are in KB). This did not fix the problem (our wiki is running 1.13.2, so $wgMaxShellTime is unavailable - it was introduced in 1.14). No error message is produced, but the thumbnail is completely transparent with no visible content. So, it appears the bug I mentioned in a previous post is the culprit. -- -- Dan Nessett _______________________________________________ MediaWiki-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
