On Fri, 21 May 2010 19:32:40 +0200, Platonides wrote: > Dan Nessett wrote: >> We are getting a thumbnailer error on a png file of 16 Mpx. This error >> is: "Error creating thumbnail: Invalid thumbnail parameters". It >> appears there is an upper bound limitation somewhere, since Wikipedia >> has a similar problem (e.g., see http://en.wikipedia.org/wiki/ >> Category:Old_Ordnance_Survey_map_images). >> >> Is this a hard limit due to limitations of Imagemagick or is there a >> global that controls the upper bound on image size that the thumbnailer >> can handle? > > http://www.mediawiki.org/wiki/Manual:$wgMaxImageArea > > ImageMagick isn't limited AFAIK. If it has not enough machine memory, it > will start using files as swap (or perhaps the OOM killer gets > launched).
Changed the value of $wgMaxImageArea to 2.5e7 and tried again. The error message is eliminated, but the thumbnail is missing (a completely transparent thumbnail is displayed). The base file is a 4kx4k px (15.2 MB) png file. Any idea why Imagemagick fails to produce a valid (600x600 px) thumbnail? If not, any hints how to chase down the problem? Dan -- -- Dan Nessett _______________________________________________ MediaWiki-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
