Re: Presence service

"James Todd" <[email protected]> Tue, 5 Dec 2006 18:07:37 -0800
Newsgroups gmane.comp.java.jxta.user
Message-ID <[email protected]>
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in meerkat a mcast (therefore prop pipe) listener can opt to reply directly
the mcast initiator to
exchange presence state ... thereby avoiding the cascading mcast storm if
one were to reply to all.

this is manifested in the presence proto which changes presence state via a
ui mouse over event.

hth,

- james

On 12/5/06, Mark S. Petrovic <[email protected]> wrote:
>
> On Tue, Dec 05, 2006 at 05:52:03PM -0800, Walter Barnes wrote:
> > This is interesting....
> >
> > I think I understand the part about the propagate pipe being well-known
> > so that new peers can announce their presence. But how do the other
> peers
> > reply? Do they use the same progate pipe (I don't think so, not sure)
> > or some other well-known pipe?
>
> Sorry, I missed the 'how to other peers reply?'.  The can write to the
> same propagate pipe, because, after all, they're bound to it to because
> they want to announce their presence.
>
> But reply to what?  You lost me on that one.  Presence status is sort
> of unidirectional unto itself.  Everybody announces their presence,
> but in my mind, it's not necessary to reply to these messages.
>
>
>
> --
> Mark S. Petrovic
> Pasadena, CA
> http://www.petrovic.org
>
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<br>in meerkat a mcast (therefore prop pipe) listener can opt to reply directly the mcast initiator to<br>exchange presence state ... thereby avoiding the cascading mcast storm if one were to reply to all.<br><br>this is manifested in the presence proto which changes presence state via a ui mouse over event.
<br><br>hth,<br><br>- james<br><br><div><span class="gmail_quote">On 12/5/06, <b class="gmail_sendername">Mark S. Petrovic</b> &lt;<a href="mailto:[email protected]">[email protected]</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Tue, Dec 05, 2006 at 05:52:03PM -0800, Walter Barnes wrote:<br>&gt; This is interesting....<br>&gt;<br>&gt; I think I understand the part about the propagate pipe being well-known<br>&gt; so that new peers can announce their presence. But how do the other peers
<br>&gt; reply? Do they use the same progate pipe (I don't think so, not sure)<br>&gt; or some other well-known pipe?<br><br>Sorry, I missed the 'how to other peers reply?'.&nbsp;&nbsp;The can write to the<br>same propagate pipe, because, after all, they're bound to it to because
<br>they want to announce their presence.<br><br>But reply to what?&nbsp;&nbsp;You lost me on that one.&nbsp;&nbsp;Presence status is sort<br>of unidirectional unto itself.&nbsp;&nbsp;Everybody announces their presence,<br>but in my mind, it's not necessary to reply to these messages.
<br><br><br><br>--<br>Mark S. Petrovic<br>Pasadena, CA<br><a href="http://www.petrovic.org">http://www.petrovic.org</a><br><br>---------------------------------------------------------------------<br>To unsubscribe, e-mail: 
<a href="mailto:[email protected]">[email protected]</a><br>For additional commands, e-mail: <a href="mailto:[email protected]">[email protected]</a><br><br></blockquote></div><br>

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