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-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Saint-Andre
Sent: Wednesday, October 08, 2008 9:51 PM
To: XMPP Extension Discussion List
Subject: Re: [Standards] question on "guaranteed delivery" and pub-sub

Ovidiu Craciun wrote:

> What I would like to know is, does any of the three
> extensions mentioned above apply to pub-sub also? A message receipt
> from server to a publisher for every item published (the publisher
> can try to re-publish after a defined time if no receipt is
> received),

This doesn't apply, because a publish happens via IQ. And why would the
pubsub service poke the publisher if not all the messages can be
delivered? I think it would be the service's responsibility to retry the
notifications.
[O.] I didn't mean the service should poke the publisher for every delivery
failure to the subscribers. Just to send a receipt back to the publisher that
the item is published into the node. So the publishers has a guarantee the item
was delivered to the node. From the node to the subscribers is a different 
story.

> and receipt from subscribers to the server they got the
> published item, thus the server could try to re-send the published
> item in case no receipt is received in a finite defined time. Or this
> kind of "receipting" is already speced in pub-sub and I missed it?...

It's not in pubsub because it's in XEP-0184. A pubsub implementation
could support message receipts so that it knows when items have been
delivered, but I don't know of any pubsub services that do so now.
[O.] ok, I got my answer. XEP-0184 is valid for pub-sub also. Thanks!

Peter

--
Peter Saint-Andre
https://stpeter.im/


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