Hi, On Thu, Nov 06, 2008 at 06:05:46PM -0800, Jeff Anderson wrote: > I've experimented with req/obj.grace set to a few hours so a site can > be served even if the backend fails. For example, with the backend > down and when req/obj.grace is set to several hours I can open a new > browser and get a 503 if I try to open a known cached (and graced) > page. However if I refresh the same browser several times very > rapidly I finally receive the graced page. It seems to be working as > expected from what I read in the documentation regarding the graced > object being served while the same object is being fetched by another > thread. The rapid refreshing is generating a second thread request > which then satisifies the requirements to have the graced object > served. Is there a way to configure varnish to serve the cached > graced object if the backend fails without the browser ever seeing the > 503? Can this also be tied into the backend probing/polling?
It's not possible yet, but wanted. See ticket http://varnish.projects.linpro.no/ticket/369. You may also have an interest for http://varnish.projects.linpro.no/wiki/VCLExampleRestarts. Cheers, -- Anders. _______________________________________________ varnish-misc mailing list [email protected] http://projects.linpro.no/mailman/listinfo/varnish-misc
