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Re: Benjamin Carlyle http 2.0 expression of interest

From: Roberto Peon <grmocg@gmail.com>
Date: Sun, 22 Jul 2012 09:20:41 -0700
Message-ID: <CAP+FsNf28s5=_9RpwDVV3n1KMwu6rsC0H5o5tO-Ti3rvJh5Xog@mail.gmail.com>
To: Marcelo Fernandez <fernandezm@gmail.com>
Cc: Benjamin Carlyle <benjamincarlyle@soundadvice.id.au>, HTTP Working Group <ietf-http-wg@w3.org>
You're right Marcelo. :)
-=R
On Jul 22, 2012 5:54 AM, "Marcelo Fernandez" <fernandezm@gmail.com> wrote:

> Hello Benjamin,
>
> 2012/7/22 Benjamin Carlyle <benjamincarlyle@soundadvice.id.au>:
> [...]
> > #3 Out of order responses and heartbeat capability
> > Modifying http to be able to make efficient use of a single TCP
> connection
> > is I think a priority for many members of this list, and is something
> that
> > SPDY has been specifically developed to address. I would like to expand
> on
> > this with the specific notion of heartbeats to be able to reliably answer
> > the question: Is my connection alive or dead? If the connection is dead
> the
> > client will want to know as quickly as possible so that it can connect
> to a
> > redundant instance of the server.
> > In my use cases I often want positive confirmation that my connection is
> > still valid approximately every four seconds, plus assurances from
> > intermediates that they are also seeing heartbeats. For long poll use
> cases
> > this can be taken care of by requesting a short timeout in requests and
> for
> > long database transactions a slow response can be replaced by an
> > asynchronous interaction, but it would be helpful to have the server send
> > regular updates on the processing status for a given request. A regular
> high
> > priority OPTIONS * request may suffice to solve this problem.
>
> In SPDY, I guess you can use a Ping Frame to do this, and also calculate
> RTT.
>
> http://tools.ietf.org/html/draft-mbelshe-httpbis-spdy-00#section-2.6.5
>
> The SPDY guys surely will correct me if I'm wrong.
>
> Regards
> --
> Marcelo F. Fernández
> Buenos Aires, Argentina
> Lic. en Sistemas de Información
>
> E-Mail: fernandezm@gmail.com
> Web Site: http://www.marcelofernandez.info
> Twitter: @fidelfernandez
>
>
Received on Sunday, 22 July 2012 16:21:09 GMT

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