Re: #537: Remove segments (consensus call)

"Poul-Henning Kamp" <phk@phk.freebsd.dk> Wed, 02 July 2014 06:38 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 (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 355881B28D2 for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Tue, 1 Jul 2014 23:38:14 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.553
X-Spam-Level:
X-Spam-Status: No, score=-7.553 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.651, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Oh3zQ6lHy8hx for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Tue, 1 Jul 2014 23:38:12 -0700 (PDT)
Received: from frink.w3.org (frink.w3.org [128.30.52.56]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A513A1B28D8 for <httpbisa-archive-bis2Juki@lists.ietf.org>; Tue, 1 Jul 2014 23:38:12 -0700 (PDT)
Received: from lists by frink.w3.org with local (Exim 4.72) (envelope-from <ietf-http-wg-request@listhub.w3.org>) id 1X2E9b-00064F-Jo for ietf-http-wg-dist@listhub.w3.org; Wed, 02 Jul 2014 06:36:27 +0000
Resent-Date: Wed, 02 Jul 2014 06:36:27 +0000
Resent-Message-Id: <E1X2E9b-00064F-Jo@frink.w3.org>
Received: from lisa.w3.org ([128.30.52.41]) by frink.w3.org with esmtp (Exim 4.72) (envelope-from <phk@phk.freebsd.dk>) id 1X2E9Y-00062s-BP for ietf-http-wg@listhub.w3.org; Wed, 02 Jul 2014 06:36:24 +0000
Received: from phk.freebsd.dk ([130.225.244.222]) by lisa.w3.org with esmtp (Exim 4.72) (envelope-from <phk@phk.freebsd.dk>) id 1X2E9X-0007Re-MJ for ietf-http-wg@w3.org; Wed, 02 Jul 2014 06:36:24 +0000
Received: from critter.freebsd.dk (unknown [192.168.60.3]) by phk.freebsd.dk (Postfix) with ESMTP id 8756116D0; Wed, 2 Jul 2014 06:36:02 +0000 (UTC)
Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.14.9/8.14.9) with ESMTP id s626a2sq019431; Wed, 2 Jul 2014 06:36:02 GMT (envelope-from phk@phk.freebsd.dk)
To: Roberto Peon <grmocg@gmail.com>
cc: David Krauss <potswa@gmail.com>, Mark Nottingham <mnot@mnot.net>, HTTP Working Group <ietf-http-wg@w3.org>, Martin Thomson <martin.thomson@gmail.com>
In-reply-to: <CAP+FsNdwizDUMCunLGhftkfgbJfstvAG3Ux8qtpHuL=jHv5eAA@mail.gmail.com>
From: Poul-Henning Kamp <phk@phk.freebsd.dk>
References: <0356EBBE092D394F9291DA01E8D28EC20100F4E9FA@sem002pd.sg.iaea.org> <CA+pLO_iP2NOOagH+Bxz9294EFCqecuKfFG2mPyeb1==yHJrH6Q@mail.gmail.com> <53A06B6F.5010102@fb.com> <CABihn6F4XAFOgX8yiDdgRHJVqvFwmV7XApAirA0AnJ7o4+pmRQ@mail.gmail.com> <CABkgnnXv3FeOoJoH_r-Sf1ZUDkNpFyU3YAzm2w2mwVe18+bemA@mail.gmail.com> <CABihn6Ho9H-h7uzPRzuds8Ty3nWcmnrDoJYc9m9XDcLt471r9w@mail.gmail.com> <CABkgnnX+9PF_4W0PdgdWACBcxi2szkoH_aXp0skoY+7_yCfZJg@mail.gmail.com> <CABihn6G-F=Bt+=3A41OQ90OHUnCc36OQB11io8vCw=_H8bUzng@mail.gmail.com> <53B19396.2090700@fb.com> <575C6C71-E344-42FF-A157-8E35C2222C0A@gmail.com> <CABkgnnUsCS3P0ZR-vDyeTzTu2nRKF06cLybvgQbisAWiRqo+8w@mail.gmail.com> <4612290A-C401-4CA9-A55F-96B7EC2EC7D8@gmail.com> <CABkgnnWK5+B8v5ZFBCcZNd0B4zKfT=3h_8_cKYvAcbsbtbhzww@mail.gmail.com> <21E9E3FC-A8CA-41AF-82A8-F8BBC1CB71F8@gmail.com> <CABkgnnUmS+DS1-TMzn1yHWSHiM4dqhgTNYsT4RoZv8_=+_2_6Q@mail.gmail.com> <0916C49C-C537-4977-A209-2923E3BC4FAA@mnot.net> <3137FC1B-6427-48A8-86C8-83E773ADB679@gmail.com> <CA P+FsNdwizDUMCunLGhftkfgbJfstvAG3Ux8qtpHuL=jHv5eAA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <19429.1404282962.1@critter.freebsd.dk>
Content-Transfer-Encoding: quoted-printable
Date: Wed, 02 Jul 2014 06:36:02 +0000
Message-ID: <19430.1404282962@critter.freebsd.dk>
Received-SPF: none client-ip=130.225.244.222; envelope-from=phk@phk.freebsd.dk; helo=phk.freebsd.dk
X-W3C-Hub-Spam-Status: No, score=-3.3
X-W3C-Hub-Spam-Report: AWL=-3.275, T_RP_MATCHES_RCVD=-0.01
X-W3C-Scan-Sig: lisa.w3.org 1X2E9X-0007Re-MJ d23a1ef5971a86f2c18822773880b70d
X-Original-To: ietf-http-wg@w3.org
Subject: Re: #537: Remove segments (consensus call)
Archived-At: <http://www.w3.org/mid/19430.1404282962@critter.freebsd.dk>
Resent-From: ietf-http-wg@w3.org
X-Mailing-List: <ietf-http-wg@w3.org> archive/latest/25053
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>

In message <CAP+FsNdwizDUMCunLGhftkfgbJfstvAG3Ux8qtpHuL=jHv5eAA@mail.gmail.com>, Roberto Peon writes:

>For my part, I still see that END_SEGMENT or something similar provides for
>interesting characteristics for HTTP2->1 gateways in allowing chunks to be
>reproduced (and we know that there are issues there) as well as allowing
>the coalescing/tunneling of protocols such as WS onto the connection,
>making them more viable.

What issues would those be and where do we know them to exist ?

Are they hacks to be discouraged or architecture to be respected ?

I have yet to hear about any issues with Varnish making totally random
(seen form the applications point of view) decisions about chunk sizes.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.