Re: [hybi] Last Call: <draft-ietf-hybi-thewebsocketprotocol-10.txt> (The WebSocket protocol) to Proposed Standard
Mark Andrews <marka@isc.org> Mon, 25 July 2011 00:47 UTC
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To: Willy Tarreau <w@1wt.eu>
From: Mark Andrews <marka@isc.org>
References: <CALiegf=pYzybvc7WB2QfPg6FKrhLxgzHuP-DpuuMfZYJV6Z7FQ@mail.gmail.com> <CAP992=FJymFPKcPVWrF-LkcEtNUz=Kt9L_ex+kLtjiGjL1T46w@mail.gmail.com> <4E28A51F.4020704@callenish.com> <CALiegf=4K2oWfmZjGMD7J_jyaDtS3i+Mu7R0Wh75Rr+MrQCjtw@mail.gmail.com> <20110722054345.GE18126@1wt.eu> <9031.1311500145.687172@puncture> <20110724105223.GL22405@1wt.eu> <CALiegfkTVg2=k4d8rxmpqXmaRUihRmhtgfF4QRUTAKic7gBk5w@mail.gmail.com> <20110724121147.GR22405@1wt.eu> <CALiegf=GDDKdXOXgz3oognh6=qRDKFUSrRfLOtOoUucAxr4p3w@mail.gmail.com> <20110724183343.GY22405@1wt.eu>
In-reply-to: Your message of "Sun, 24 Jul 2011 20:33:43 +0200." <20110724183343.GY22405@1wt.eu>
Date: Mon, 25 Jul 2011 10:46:58 +1000
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Cc: Server-Initiated HTTP <hybi@ietf.org>, IETF-Discussion <ietf@ietf.org>
Subject: Re: [hybi] Last Call: <draft-ietf-hybi-thewebsocketprotocol-10.txt> (The WebSocket protocol) to Proposed Standard
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In message <20110724183343.GY22405@1wt.eu>, Willy Tarreau writes: > On Sun, Jul 24, 2011 at 08:25:05PM +0200, I=F1aki Baz Castillo wrote: > > 2011/7/24 Willy Tarreau <w@1wt.eu>: > > >> > Making an additional DNS request and a connection come with a cost. > > >> > > >> http://tools.ietf.org/html/draft-ibc-websocket-dns-srv-02#section-5.2 > > > > > > You still need the DNS request : the client does an A/AAAA request for > > > the HTTP host, then if you ask it to use an SRV record for the WS conne= > ction, > > > it must perform that request too, even if it's to conclude that it can = > reuse > > > the idle connection. > > = > > > Ok, but I don't consider a xtra DNS query to be so hard. > > I had to perform sites analysis for a customer a few months ago. Many > web pages nowadays have between 100 and 200 objects to fetch, spread > over up to 25-30 host names. If you take even only 100ms for each of > them, you're at 3 additional seconds to display the page. Granted those > requests are not WS and only HTTP, but as I said, SRV for WS won't work > before it works with HTTP, at least due to proxies. No. It takes 100ms extra. Only if you serialise all the lookups does it take 3 extra seconds. If you are not doing the DNS lookups in parallel today you are already doing a dis-service to your customers. Adding a SRV lookup should add 0ms if it isn't there as you should be making A, AAAA and SRV lookups in parallel. Non-existance is as cachable as existance is. > But those 3 extra seconds will always be considered a good reason not > to make SRV mandatory for HTTP. The web is degrading very quickly due > to poor practices, and we should be careful not to suggest to make it > even worse. > > Regards, > Willy > > _______________________________________________ > Ietf mailing list > Ietf@ietf.org > https://www.ietf.org/mailman/listinfo/ietf -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
- [hybi] Last Call: <draft-ietf-hybi-thewebsocketpr… The IESG
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Thomson, Martin
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Julian Reschke
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Julian Reschke
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Julian Reschke
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Julian Reschke
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Francis Brosnan Blazquez
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Thomson, Martin
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Greg Wilkins
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Len Holgate
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Len Holgate
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Francis Brosnan Blazquez
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Len Holgate
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Francis Brosnan Blazquez
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Barry Leiba
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Len Holgate
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Francis Brosnan Blazquez
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mykyta Yevstifeyev
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Philippe Bernard
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Bruce Atherton
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Bruce Atherton
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Gabriel Montenegro
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… John Tamplin
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Greg Wilkins
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… David Endicott
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Roy T. Fielding
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Ted Hardie
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Keith Moore
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… John Tamplin
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Patrick McManus
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Alexey Melnikov
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Roy T. Fielding
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Roy T. Fielding
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Bjoern Hoehrmann
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Patrick McManus
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… John Tamplin
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Keith Moore
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Keith Moore
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Martin Rex
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Willy Tarreau
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Peter Saint-Andre
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Dave Cridland
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Mark Andrews
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Martin Rex
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Philip Homburg
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Roy T. Fielding
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Hector
- Re: [hybi] Last Call: <draft-ietf-hybi-thewebsock… Iñaki Baz Castillo
- [hybi] IESG note?, was: Last Call: <draft-ietf-hy… Julian Reschke
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Julian Reschke
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Roy T. Fielding
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Joel Martin
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Willy Tarreau
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Joel Martin
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Sylvain Hellegouarch
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Joel Martin
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Sylvain Hellegouarch
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Julian Reschke
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Peter Saint-Andre
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Richard L. Barnes
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Greg Longtin
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Willy Tarreau
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Roy T. Fielding
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Willy Tarreau
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Gabriel Montenegro
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Stephen Farrell
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Willy Tarreau
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Richard L. Barnes
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… John Tamplin
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… SM
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Stephen Farrell
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Peter Saint-Andre
- Re: [hybi] IESG note?, was: Last Call: <draft-iet… Willy Tarreau