[Standards] Council on Stanza Repeaters without Multicast
dave at cridland.net
Fri Apr 4 09:35:08 UTC 2008
On Fri Apr 4 09:16:34 2008, Pedro Melo wrote:
> On Apr 3, 2008, at 10:40 PM, Alexander Gnauck wrote:
>> Carlo v. Loesch schrieb:
>>> Yes, that's why I started thinking about something better in 1990.
>>> I understood there was no way for IRC to be 'fixed' because its
>>> is fundamentally flawed. XMPP is only syntactically flawed, which
>>> a much better starting point. And you can argue that's just my
>>> That's ok. Still IRC does multicast, and XMPP is still missing
>>> and Pedro is the kind of person who can see the impact of that
>>> each day.
>> I also see this impact. With the situation we have *today* I agree
>> with Dave that we don't save much traffic and stanzas with
>> repeaters. There is nearly no PubSub usage at all today, and in
>> the most Muc rooms we have only 5-30 participants. If I look at
>> the participants of jdev today than the most users have local
>> jabber.org Jids, and max. 2 or 3 participants are on the same
>> federated server. People join and leave, so there will be a tie
>> between the stanzas we save in the repeater and the overhead to
>> maintain the distribution list in the repeater.
> A quick data-point: the largest pubsub node *right now*, has a bit
> over 73000 (73056 to be exact) subscribers, the top 3 are all above
> 72k. And this service is only for local users of the server.
To state the obvious (which I'm sure you know), nothing's going to
help this case...
> [OT] And yes, even now, with only local users, we see a bit spike
> in ejabberd when we have a new notification. This is a old version
> of ejabberd and we are using a component connection, I'm sure that
> if we move this to angie in 2.x we will improve a bit.
... unless you ran a repeater over the component link, of course,
which might work. Or might not - but a component protocol might need
this sort of thing.
Dave Cridland - mailto:dave at cridland.net - xmpp:dwd at jabber.org
Infotrope Polymer - ACAP, IMAP, ESMTP, and Lemonade
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