Re: [hybi] Last Call: <draft-ietf-hybi-thewebsocketprotocol-10.txt> (The WebSocket protocol) to Proposed Standard

Willy Tarreau <w@1wt.eu> Wed, 27 July 2011 17:13 UTC

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Date: Wed, 27 Jul 2011 19:13:34 +0200
From: Willy Tarreau <w@1wt.eu>
To: Dave Cridland <dave@cridland.net>
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References: <CALiegfnYm6g63JDHLiSH__r-or3kzK0XCVa3cC7RMP14KWBOSg@mail.gmail.com> <20110724120751.GQ22405@1wt.eu> <CALiegfncavmoMp4YDCeeJ3rsOfHAYQ99itKX2Q2eHB351T3X5A@mail.gmail.com> <20110724184537.GZ22405@1wt.eu> <CALiegfne620wuDMAp235n3mVcXTAnbhhNm8vpiNCy5F7+VD92A@mail.gmail.com> <20110724192948.GD22405@1wt.eu> <CALiegf=e48kkF+Gky1mY7LippUB-0kZDgSGZrJxk1aZupAGkYw@mail.gmail.com> <20110727012806.EBB811231907@drugs.dv.isc.org> <20110727052549.GB4086@1wt.eu> <9031.1311786432.357811@puncture>
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Cc: Server-Initiated HTTP <hybi@ietf.org>, IETF-Discussion <ietf@ietf.org>, Mark Andrews <marka@isc.org>
Subject: Re: [hybi] Last Call: <draft-ietf-hybi-thewebsocketprotocol-10.txt> (The WebSocket protocol) to Proposed Standard
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On Wed, Jul 27, 2011 at 06:07:12PM +0100, Dave Cridland wrote:
> On Wed Jul 27 06:25:49 2011, Willy Tarreau wrote:
> >On Wed, Jul 27, 2011 at 11:28:06AM +1000, Mark Andrews wrote:
> >> > SRV provides load-balancing and failover. I never said that SRV  
> >is a
> >> > solution for temporaly put in maintenance a server.
> >>
> >> Happy eyeballs however does allow you to take a server out of  
> >production
> >> and not really notice it.  Note webbrowsers have had the ability  
> >to do
> >> this for as long as webbrowsers have existed.
> >
> >Mark, could you elaborate on this point ? Surely you're not talking  
> >about
> >the fact that a browser retries a failed connection, but I'm not  
> >not sure
> >what mechanism you're talking about.
> 
> Happy eyeballs - try everything as soon as you can, in parallel. Drop  
> everything else when one does.

This sensibly increases load on servers with useless connections, and
is counter-efficient in mobile networks where sending uplink packets
is the limiting factor !

Willy