Re: HTTP/2 GREASE, Results, and Implications

David Benjamin <davidben@chromium.org> Thu, 31 October 2019 19:22 UTC

Return-Path: <ietf-http-wg-request+bounce-httpbisa-archive-bis2juki=lists.ie@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 2C1F812082C for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Thu, 31 Oct 2019 12:22:36 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.75
X-Spam-Level:
X-Spam-Status: No, score=-2.75 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=chromium.org
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 LScxVLHIQuFN for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Thu, 31 Oct 2019 12:22:33 -0700 (PDT)
Received: from frink.w3.org (frink.w3.org [IPv6:2603:400a:ffff:804:801e:34:0:38]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4B3FC120991 for <httpbisa-archive-bis2Juki@lists.ietf.org>; Thu, 31 Oct 2019 12:22:30 -0700 (PDT)
Received: from lists by frink.w3.org with local (Exim 4.89) (envelope-from <ietf-http-wg-request@listhub.w3.org>) id 1iQFzr-0003FM-3m for ietf-http-wg-dist@listhub.w3.org; Thu, 31 Oct 2019 19:20:39 +0000
Resent-Date: Thu, 31 Oct 2019 19:20:39 +0000
Resent-Message-Id: <E1iQFzr-0003FM-3m@frink.w3.org>
Received: from mimas.w3.org ([2603:400a:ffff:804:801e:34:0:4f]) by frink.w3.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from <davidben@google.com>) id 1iQFzo-0003Eb-Mr for ietf-http-wg@listhub.w3.org; Thu, 31 Oct 2019 19:20:36 +0000
Received: from mail-pl1-x62b.google.com ([2607:f8b0:4864:20::62b]) by mimas.w3.org with esmtps (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from <davidben@google.com>) id 1iQFzm-0001Kw-MR for ietf-http-wg@w3.org; Thu, 31 Oct 2019 19:20:36 +0000
Received: by mail-pl1-x62b.google.com with SMTP id q16so3122191pll.11 for <ietf-http-wg@w3.org>; Thu, 31 Oct 2019 12:20:34 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=qAOO8YX5rkD30TGZ/TNPwb37uxHSC5Ao0leUt4xbeIs=; b=CY+J2w2ruPr5dC8c/g5MnHR9Ale1u8vTu52N9TtMlMD8+iB/w039OsABt6xspt4Ymg t2PIvO+bQ7W98ILrD2GXGQ3doPjOEq5AS66CvorUcfNZA62ms5EAI8u21CGFDWwhYcTX btKsxXgzWQwy2hbXujat3Lq0ho0hMzK6jRz/I=
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=qAOO8YX5rkD30TGZ/TNPwb37uxHSC5Ao0leUt4xbeIs=; b=SKNAFUjdUxQ6rllbk0aiM7OZwGnYb5TDN1RbDcGoE6wzGUzV8q3Jq4+WuxRAst5uxk YvtNazUrn8Fk9YkKjkeoiSj+HhDs0hwCc8sXa4eFCX483fgY6LqEmYbz7PYq4lf1oqQg Mcq/wQGnbL2KqzVZENzB9QK0MjGOtg+dRRKlfyFIgo5eRxMyRL9YT48Nf4BPuF5BP+kZ CGYD6IEDIC6v3JnIZYJR1eIA3ELJuqYCkHrwswNcurc6reK1QqLVAPAv1cyxJ2zjm81B a53blvvsPZKsjLJg9/1zcXs7MbFCQqMrZSYnxq43jag0agREmaisjYP8RftTOS58ZZG5 huCw==
X-Gm-Message-State: APjAAAVHOC/9B3MoyvvyC9KNisr+S3Zk/r1TJMm3IEvl8SEBiiTS805Z nmntsZ41sfltNVDnZa1u4Y+e3yzrLSQVaafWaBd4
X-Google-Smtp-Source: APXvYqwMfD8l+LSmaHvt5HwwKojbGsmvOoZAT+e+Cse6OgazEQW1gJHHikhHthU3oSa/5YYnE3M/nn4OfH1zvw/+1ww=
X-Received: by 2002:a17:902:b58e:: with SMTP id a14mr8342043pls.0.1572549631783; Thu, 31 Oct 2019 12:20:31 -0700 (PDT)
MIME-Version: 1.0
References: <BN6PR2201MB1700D10A34C72213C78E09A6DA630@BN6PR2201MB1700.namprd22.prod.outlook.com> <20191031155259.GC30674@1wt.eu> <CACMu3trL5UMukoPd8Nr4W-bMsyH+WKUnwg16yxu3tN5D=uZt8w@mail.gmail.com> <20191031171559.GB30874@1wt.eu> <CAF8qwaCTbxtLRDuRGbdgoQF+rB3uZTyRjnOe_xQNx4PbRZtXkg@mail.gmail.com> <20191031191104.GC30937@1wt.eu>
In-Reply-To: <20191031191104.GC30937@1wt.eu>
From: David Benjamin <davidben@chromium.org>
Date: Thu, 31 Oct 2019 15:20:15 -0400
Message-ID: <CAF8qwaD6+-5HrpbQBxDu3TZKbb=7z1muGrnurVH4iPgKnpovQg@mail.gmail.com>
To: Willy Tarreau <w@1wt.eu>
Cc: =?UTF-8?Q?Bence_B=C3=A9ky?= <bnc@chromium.org>, Mike Bishop <mbishop@evequefou.be>, HTTP Working Group <ietf-http-wg@w3.org>
Content-Type: multipart/alternative; boundary="000000000000324da1059639be67"
Received-SPF: pass client-ip=2607:f8b0:4864:20::62b; envelope-from=davidben@google.com; helo=mail-pl1-x62b.google.com
X-W3C-Hub-Spam-Status: No, score=-11.2
X-W3C-Hub-Spam-Report: BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, USER_IN_DEF_SPF_WL=-7.5, W3C_AA=-1, W3C_WL=-1
X-W3C-Scan-Sig: mimas.w3.org 1iQFzm-0001Kw-MR c3e6e8ec53fb6ef153b3bff92fe0d43a
X-Original-To: ietf-http-wg@w3.org
Subject: Re: HTTP/2 GREASE, Results, and Implications
Archived-At: <https://www.w3.org/mid/CAF8qwaD6+-5HrpbQBxDu3TZKbb=7z1muGrnurVH4iPgKnpovQg@mail.gmail.com>
Resent-From: ietf-http-wg@w3.org
X-Mailing-List: <ietf-http-wg@w3.org> archive/latest/37095
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: <https://www.w3.org/Mail/>
List-Post: <mailto:ietf-http-wg@w3.org>
List-Unsubscribe: <mailto:ietf-http-wg-request@w3.org?subject=unsubscribe>

On Thu, Oct 31, 2019 at 3:11 PM Willy Tarreau <w@1wt.eu>; wrote:

> Hi David,
>
> On Thu, Oct 31, 2019 at 03:05:16PM -0400, David Benjamin wrote:
> > On Thu, Oct 31, 2019 at 1:18 PM Willy Tarreau <w@1wt.eu>; wrote:
> >
> > > On Thu, Oct 31, 2019 at 01:08:53PM -0400, Bence Béky wrote:
> > > > Thanks, Willy, for pointing out the different sections of RFC7540
> > > > concerning unknown frame types.  It seems to me that for the past few
> > > days
> > > > Chrome (on certain channels) has been sending frames on half-closed
> > > > (remote) streams.  It might be worth fixing that and re-running the
> > > > experiment.  I'll circle back with results if we end up doing that.
> > >
> > > OK. I have a pending patch ready for testing on the haproxy front which
> > > addresses this mismatch. The only thing is that chrome beta doesn't
> seem
> > > to be available on linux so I constantly have to bother other people
> for
> > > testing, which takes time :-/
> > >
> >
> > Chrome beta (also dev channel) should be available on Linux. See
> > https://www.google.com/chrome/beta/?platform=linux. (Or if you've
> already
> > gotten the apt repository added, I believe the google-chrome-beta package
> > should work.) It also uses a separate profile directory, so it won't
> > conflict with your usual install. Hopefully that'll ease testing.
>
> Sorry I used the wrong word. The beta I download there is 78.something
> and does not match the latest one Yves was running (80 something). I
> tried it already and it doesn't fail. I also found "chrome dev" which
> is 79.something and doesn't present the problem either. When I go to
> the "chrome canary" link, it clearly says in the middle of the screen
> "we do not support linux". So for now I can't test, that's pretty sad :-/
>

Ah, gotcha. Yeah, we don't have a canary release for Linux sadly. Just
stable, beta, and dev. And, indeed, it looks like 80 hasn't made its way to
dev yet. :-/
https://chromiumdash.appspot.com/releases?platform=Linux

That said, it looks like we implemented GREASE for HTTP/2 quite a long time
ago. The experiment just wasn't enabled until now. You should be able to
force it on via a command-line flag on any remotely recent version. I'm not
sure off-hand what the incantation is. Bence?

David