Re: Editorial Issues: Section 4.2.2

James M Snell <jasnell@gmail.com> Wed, 24 April 2013 19:08 UTC

Return-Path: <ietf-http-wg-request@listhub.w3.org>
X-Original-To: ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com
Delivered-To: ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8AD6E21F8E9A for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Wed, 24 Apr 2013 12:08:19 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -10.522
X-Spam-Level:
X-Spam-Status: No, score=-10.522 tagged_above=-999 required=5 tests=[AWL=0.077, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DboVUlPC3j3z for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Wed, 24 Apr 2013 12:08:18 -0700 (PDT)
Received: from frink.w3.org (frink.w3.org [128.30.52.56]) by ietfa.amsl.com (Postfix) with ESMTP id 8122E21F8F45 for <httpbisa-archive-bis2Juki@lists.ietf.org>; Wed, 24 Apr 2013 12:08:18 -0700 (PDT)
Received: from lists by frink.w3.org with local (Exim 4.72) (envelope-from <ietf-http-wg-request@listhub.w3.org>) id 1UV52Y-0001e1-LP for ietf-http-wg-dist@listhub.w3.org; Wed, 24 Apr 2013 19:07:38 +0000
Resent-Date: Wed, 24 Apr 2013 19:07:38 +0000
Resent-Message-Id: <E1UV52Y-0001e1-LP@frink.w3.org>
Received: from lisa.w3.org ([128.30.52.41]) by frink.w3.org with esmtp (Exim 4.72) (envelope-from <jasnell@gmail.com>) id 1UV52U-0001bl-Bv for ietf-http-wg@listhub.w3.org; Wed, 24 Apr 2013 19:07:34 +0000
Received: from mail-oa0-f54.google.com ([209.85.219.54]) by lisa.w3.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.72) (envelope-from <jasnell@gmail.com>) id 1UV52P-0001Iz-Pq for ietf-http-wg@w3.org; Wed, 24 Apr 2013 19:07:34 +0000
Received: by mail-oa0-f54.google.com with SMTP id l20so2052310oag.41 for <ietf-http-wg@w3.org>; Wed, 24 Apr 2013 12:07:03 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:mime-version:in-reply-to:references:from:date:message-id :subject:to:cc:content-type; bh=yNimehNEJNqHKfxcoM0Q4NGuPTfc2QU7x32Dto6gEqM=; b=LcTlrOEzYpHJBrMxvdhtEmXYjlL1aVipJM16KvCAsDOYfsowH+wqA/IZH82/pS0P2l YXOjq4dCqd+quBHoGZCC0HLaBjvNFHk2yFpFwRUwSmrvJ+oQPc0AIfkB9xWaCCE3FmY3 6XvOz26MPGU5i9mI1QIwSwPHpZCnJxI3i5tuCVwO7S09f1Wmf11tXDDaLB/Y2Ky96WEu CtB1LcUaZ7JDhBFOqAxzcGUo0JvmlYWpG6YrDJH1zkYzUvqrDr/P9bSOaaf315a5Oqlz QRtsbQzs/NAIRhCaqFYcpwqojRZ81FOaluAirh/OsK3qsZJX/mnTWCLgF3j2G0w/1J1s C9CQ==
X-Received: by 10.182.22.133 with SMTP id d5mr4404210obf.43.1366830423886; Wed, 24 Apr 2013 12:07:03 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.60.3.137 with HTTP; Wed, 24 Apr 2013 12:06:43 -0700 (PDT)
In-Reply-To: <CABkgnnXATq1RPUe8ZmzZdUNO6weXE9+Q-nYjJOEMa0NJbJkiHQ@mail.gmail.com>
References: <CABP7Rbfh_V0GVameQzF-5RC+GQa7=XTQoZ3E4vZ5Uu+PL_1w8g@mail.gmail.com> <CABkgnnXATq1RPUe8ZmzZdUNO6weXE9+Q-nYjJOEMa0NJbJkiHQ@mail.gmail.com>
From: James M Snell <jasnell@gmail.com>
Date: Wed, 24 Apr 2013 12:06:43 -0700
Message-ID: <CABP7Rbc9fF5xZOfabnQOs5ncJOtkas1_aUw_YXm-sTpviU12xw@mail.gmail.com>
To: Martin Thomson <martin.thomson@gmail.com>
Cc: "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
Content-Type: text/plain; charset=UTF-8
Received-SPF: pass client-ip=209.85.219.54; envelope-from=jasnell@gmail.com; helo=mail-oa0-f54.google.com
X-W3C-Hub-Spam-Status: No, score=-3.5
X-W3C-Hub-Spam-Report: AWL=-2.665, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001
X-W3C-Scan-Sig: lisa.w3.org 1UV52P-0001Iz-Pq e5072fb2158aeb76a89d1b7b69922345
X-Original-To: ietf-http-wg@w3.org
Subject: Re: Editorial Issues: Section 4.2.2
Archived-At: <http://www.w3.org/mid/CABP7Rbc9fF5xZOfabnQOs5ncJOtkas1_aUw_YXm-sTpviU12xw@mail.gmail.com>
Resent-From: ietf-http-wg@w3.org
X-Mailing-List: <ietf-http-wg@w3.org> archive/latest/17555
X-Loop: ietf-http-wg@w3.org
Resent-Sender: ietf-http-wg-request@w3.org
Precedence: list
List-Id: <ietf-http-wg.w3.org>
List-Help: <http://www.w3.org/Mail/>
List-Post: <mailto:ietf-http-wg@w3.org>
List-Unsubscribe: <mailto:ietf-http-wg-request@w3.org?subject=unsubscribe>

This is now: https://github.com/http2/http2-spec/issues/70

On Wed, Apr 24, 2013 at 11:13 AM, Martin Thomson
<martin.thomson@gmail.com>; wrote:
[snip]
>>
>> The challenge with this is that if we go with any of the proposed
>> Delta-based header encoding schemes currently on the table, it is
>> difficult to ensure that : prefixed headers are encoded first in the
>> header block. It may even be counter productive to the task of
>> producing an optimized serialization.
>
> I'm going to suggest that we defer this and remove it when we edit in
> header compression, if necessary.  There may be a way to retain this
> property.  For instance, we might require operations on ':'-headers to
> occur before non-':'-headers.  That might not surface in some
> implementations (I wouldn't see why this is something that you would
> preserve in your Java implementation, it's just unnecessary
> complication), but it might make a routing intermediary marginally
> more performant.
>
> --Martin