On Fri, Apr 24, 2009 at 2:44 PM, Brion Vibber brion@wikimedia.org wrote:
Well, what about the 5 million other users browsing Special:Newimages? We don't want 50 simultaneous attempts to build that first über-thumbnail. :)
You'd presumably use some kind of locking to stop multiple workers from trying to render thumbnails of the same size in general (über-thumbnails or not).