Not sure how this thread got hijacked into "MySQL-python installation nightmare", but I'm setting it back to the subject that is of more interest to me.
-- Will On May 8, 8:03 pm, will welch <welch.quietple...@gmail.com> wrote: > For this afternoon's quick hack, I don't check. Your one-writer-many- > readers lock in the cache means that any update-the-cache page > requests that arrive while a new page is being computed have no effect > (well, they "return" the old cached page immediately, but nobody is > listening to what these updater requests return). So it's a little > wasteful in this dogpiling example, but no extra pages are actually > computed. > > On May 8, 6:09 pm, Ben Bangert <b...@groovie.org> wrote: > > > On May 8, 2009, at 4:34 PM, will welch wrote: > > > > Because I was caching entire pages generated by a controller, > > > I dodged working out such a creation function (with its own > > > controller > > > environment and SA session). Instead I wrote a middleware that > > > intercepts > > > a page request, fires up a thread that does a urllib.urlretrieve on > > > that same > > > url but with a secret update-the-cache url parameter set, meanwhile > > > proceeding with forwarding the request along the stack for processing > > > in the usual way (which will ultimately fetch the currently cached > > > version > > > of the requested page with no delay). > > > You have some sort of locking in place so that only one thread is > > spawned? I mean, if it was to expire, and 30 requests came in at the > > same time before it was done, it wouldn't fire up 30 threads would it? > > > Cheers, > > Ben > > > smime.p7s > > 3KViewDownload --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To post to this group, send email to pylons-discuss@googlegroups.com To unsubscribe from this group, send email to pylons-discuss+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
