[Standards] Invisible Command and probes

Peter Mount peter at retep.org.uk
Wed Jun 30 21:51:26 UTC 2010

A user that never logs out - that could also refer to a bot as they wouldn't ever log out.

Peter Mount (from my BlackBerry)

Email: peter at retep.org.uk
  Web:  http://retep.org
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-----Original Message-----
From: Justin Karneges <justin-keyword-jabber.093179 at affinix.com>
Sender: standards-bounces at xmpp.org
Date: Wed, 30 Jun 2010 11:47:34 
To: XMPP Standards<standards at xmpp.org>
Reply-To: XMPP Standards <standards at xmpp.org>
Subject: Re: [Standards] Invisible Command and probes

On Wednesday 30 June 2010 11:35:23 Philipp Hancke wrote:
> Justin Karneges wrote:
> > Have an XMPP server that probes contacts the first time it knows about
> > them, and on bootup, but never for any other reason.  Local user logins
> > would never trigger probes.  All incoming presence is cached
> > indefinitely.
> Did you ever implement that? Imo it does not work (i.e. the cache is not
> reliable due to lost presence stanzas), but I would like to hear a
> second opinion.

It's no worse than when you have a user who never log out.  You know, the kind 
who stays logged in even at night and sets their status to "Sleeping".  
Probing on an interval is probably the right solution for maintaining 
reliable presence.


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