[jdev] last presence confusion

Maciek Niedzielski machekku at uaznia.net
Fri Jan 25 11:41:57 CST 2008

Justin Karneges wrote:
> On Friday 25 January 2008 7:06 am, Maciek Niedzielski wrote:
>> On Sat, Dec 22, 2007 at 12:23:38PM -0800, Justin Karneges wrote:
>>> On Thursday 20 December 2007 2:52 pm, Peter Saint-Andre wrote:
>>>> (1) reply to the presence probe by sending to the user
>>>> the full XML of the last presence stanza of type "unavailable" received
>>>> by the server from the contact, or (2) not reply at all. So a nice
>>>> server will return the last unavailable presence information (with a
>>>> Delayed Delivery flag), thus obviating the need for a flood of
>>>> jabber:iq:last requests.
>> On the other hand, usually just 1/3 of my roster is online. So if server
>> starts sending presence for all contacts, initial "presence flood" from
>> the server increases 3 times.
> The price of avoiding a jabber:iq:last flood.  Sounds like the caps 
> discussion. :)
But jabber:iq:last flood is not obligatory ;)

Maciek Niedzielski
  xmpp:machekku at uaznia.net

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