varnish fetching, stroring and serving cached 404 from backend server
mloftis at wgops.com
Wed Aug 18 04:59:45 CEST 2010
Varnish caching, or not caching, is completely controlled by the VCL. Not
having yours noone can help you. However, the *default* VCL makes anything
with a Cookie or HTTP Authentication header from the client uncacheable.
--On Tuesday, August 17, 2010 1:13 PM -0700 David Birdsong
<david.birdsong at gmail.com> wrote:
> I've been struggling to understand why and how varnish is deciding to
> cache a 404 response from a backend. It's very tough to reproduce.
> I've thrown millions of test URLs at varnish where my testing
> application will respond back randomly with a 404 and I can't trigger
> it. Only user traffic is able to trigger this weird behavior.
> Anybody have any experience with this?
> Here's a varnishlog of a 404.
> I'm working to capture the varnishlog of the resource actually getting
> fetched and stored.
> varnish-misc mailing list
> varnish-misc at varnish-cache.org
More information about the varnish-misc