Two New HTTP Caching Extensions

Michael S. Fischer michael at
Thu Apr 10 00:03:29 CEST 2008

On Tue, Apr 8, 2008 at 4:34 PM, Ricardo Newbery <ric at> wrote:
> > I should add a qualifier to my vote, that stale-while-revalidate
> > generally is used to mask suboptimal backend performance and so I
> > discourage it in favor of fixing the backend.
>  Of course the main premise of a reverse-proxy cache is to mask suboptimal
> backend performance.  :-)

Except, in this case, you are presumably already relieving your
backend of a significant burden with your cache.  if your backend is
*still* unable to process requests to fulfill a request from the
caching layer within a reasonable time, you're in serious trouble


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