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Re: bohe and delta experimentation...

Willy Tarreau <w@1wt.eu> Fri, 18 January 2013 19:57 UTC

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Date: Fri, 18 Jan 2013 20:55:34 +0100
From: Willy Tarreau <w@1wt.eu>
To: Phillip Hallam-Baker <hallam@gmail.com>
Cc: James M Snell <jasnell@gmail.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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Subject: Re: bohe and delta experimentation...
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On Fri, Jan 18, 2013 at 02:40:41PM -0500, Phillip Hallam-Baker wrote:
> Why do HTTP request messages have dates in them anyhow?
> 
> If they do not cause a state machine to behave differently then lets get
> rid of them.
> 
> Dates that are content metadata are useful but putting the time in a
> synchronous protocol has always seemed rather silly to me. The only use I
> can see is to find out if the requester can config their machine to have
> the right TOD on the clock. If that is all we are worried about then DNS
> type 32 bit dates would be fine. DateTime in the DNS actually wraps every
> UNIX epoch.

We could also have a date relative to the moment it's emitted. That way,
we get rid of the synchronization issues and risk of overflows while
keeping a short format (32 bit).

Just an idea.
Willy

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