Grace mode with 404 responses?

[Guillaume Quintard]

Hi Peter,

what is not working in the case of 404?

-- 
Guillaume Quintard

On Fri, Dec 2, 2016 at 9:11 AM, Peter Loron <peterloron at gmail.com> wrote:

> Hello, folks. I’m testing a Varnish 4.1.1 setup. Specifically I’m working
> with shielding a client service from an unreliable remote service by
> proxying and caching responses from the remote system.
>
> Grace mode is working fine for situations where the remote server is
> unresponsive (e.g. apache turned off), but does not seem to work when a 404
> is returned for a resource. I immediately get the 404 on the client when
> the TTL (not the TTL + grace) is expired.
>
> I’m assuming this is something I’m not doing right in my VCL file, but I
> can’t figure out what.
>
> Is there a canonical example of how to handle this properly?
>
> Thanks.
>
> -Pete
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