what is the ttl?

Geoff Simmons geoff at uplex.de
Thu Aug 28 08:35:10 CEST 2014


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On 8/28/14 8:13 AM, Nils Goroll wrote:
> 
> [...] I not so sure if users would expect implicit changes to http 
> headers. IOW, if I had
> 
> set beresp.maxage = 2h;
> 
> in my VCL, would anyone expect this to imply something like
> 
> # simplified, should edit the header and not just set it set
> beresp.http.Cache-Control = "max-age=7200"
> 
> ?

Would *anyone* expect that? Yes, guaranteed. I think it's likely that
many users would expect it, and that they would become confused and
angry if it doesn't work that way.

> I tend to think that users should really understand that
> beresp.something and beresp.http.something are different things and
> the documentation should make clear when we update headers (I guess
> there is some work to be done here).

When we find ourselves saying "users should really understand" and
"documentation should make it clear", we have unmistakable indicators
of strong potential for confusion. %^)


Best,
Geoff
- -- 
UPLEX Systemoptimierung
Scheffelstraße 32
22301 Hamburg
http://uplex.de/
Mob: +49-176-63690917
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