[JDEV] Distributed design of jabber
temas
temas at box5.net
Thu May 3 11:57:03 CDT 2001
yes, sorry.
--temas
On 03 May 2001 10:06:37 -0500, Colin Madere wrote:
> Thanks! That'll work.
>
> One thing, do you mean "dpsms" rather than "jpollds" down there? (I
> remember jpolld was the old scaling attempt...)
>
> > -----Original Message-----
> > From: temas [mailto:temas at box5.net]
> > Sent: Wednesday, May 02, 2001 7:36 PM
> > To: jdev at jabber.org
> > Subject: RE: [JDEV] Distributed design of jabber
> >
> >
> > Ok, well...
> > In short: dpsm is the devpoll socket manager. It handles sockets in
> > the same manner as c2s currently, but does it in a higher scaling
> > fashion.
> >
> > In long, normal c2s only handles 1024 sockets, that sucks.
> > So I looked
> > at the latest and greatest socket technology and saw devpoll
> > to probably
> > be the best option. I then designed dpsm around devpoll and
> > around the
> > idea of running it in front of the main jabberd to handle a lot of
> > sockets.
> >
> > Example: two mid size boxes in front of a larger backend box, the
> > smaller running the jpollds, and the larger only jabbed.
> >
> > So there is a lame summary of it and an example setup. It's still
> > growing, but should be functional.
> >
> > --temas
> >
> > On 02 May 2001 15:06:46 -0500, Colin Madere wrote:
> > > temas,
> > >
> > > Any chance you could give us a quick run-down of what dpsm
> > does and how it
> > > should be used? I scanned the source and such, but it
> > would be nice to get
> > > a clear picture from the author about it :)
> > >
> > > colin
> > >
> > > > -----Original Message-----
> > > > From: temas [mailto:temas at box5.net]
> > > > Sent: Wednesday, May 02, 2001 1:22 PM
> > > > To: jdev at jabber.org
> > > > Subject: RE: [JDEV] Distributed design of jabber
> > > >
> > > >
> > > > dpsm is me. It works right now (requires kernel module
> > for devpoll
> > > > support). It's not fully tested, but that should be
> > > > happening more this
> > > > week. Give it a go and help develop it and I'll love you =)
> > > >
> > > > Not sure on mod_farm right now, haven't looked in a while.
> > > >
> > > > --temas
> > > >
> > > > On 02 May 2001 09:56:50 -0500, Colin Madere wrote:
> > > > > Another note:
> > > > >
> > > > > According to jabber.com, they charge based on concurrent
> > > > users on the
> > > > > server. Currently they are in a state which it is not
> > > > profitable for them
> > > > > to deal with small companies(they didn't really give me
> > a number) or
> > > > > companies that did not have a _gaurenteed_ high number of
> > > > concurrent users.
> > > > >
> > > > > Going on three weeks now that I'm waiting for answers to
> > > > technical questions
> > > > > to see if the jabber.com server is a viable solution
> > for my company.
> > > > >
> > > > > IOW, until they get some big sales and can beef up on
> > > > resources (read: more
> > > > > employees), I wouldn't waste your time or theirs unless you
> > > > have a need for
> > > > > a server (and can afford it - once again, I didn't get any
> > > > prices) that will
> > > > > have a constant concurrent user count above 10K (that's my
> > > > guess, since they
> > > > > didn't give me any solid numbers).
> > > > >
> > > > > (Don't get me wrong, I understand their need to focus on
> > > > customers that can
> > > > > bring in the big cash until they have good income and are
> > > > stabilized)
> > > > >
> > > > > WHILE I'm on the subject, hey JER and whoever else has
> > > > worked on it, what's
> > > > > the status of dpsm and.... 'mod_farm' is it?
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: dizzyd at dizzyd.com [mailto:dizzyd at dizzyd.com]
> > > > > > Sent: Wednesday, April 25, 2001 8:24 PM
> > > > > > To: jdev at jabber.org
> > > > > > Subject: Re: [JDEV] Distributed design of jabber
> > > > > >
> > > > > >
> > > > > > Lemme just translate this marketing stuff to
> > engineering speak:
> > > > > >
> > > > > > > >"Enables Distributed Processing across multiple server
> > > > > > "farms" which in
> > > > > > > > turn may support multiple CPUs."
> > > > > >
> > > > > > Jabber.com reworked the server to be pre-emptively
> > multi-threaded
> > > > > > (pthreads). Additionally, some work on JSM was done to
> > > > permit multiple
> > > > > > JSMs to be fully meshed across a network.
> > > > > >
> > > > > > > >"Allows components of a Jabber server to be distributed
> > > > > > across multiple
> > > > > > > > machines, enabling a greater degree of inherent
> > redundancy."
> > > > > >
> > > > > > Not sure what this means. :)
> > > > > >
> > > > > > > >"Enables groups of "socket" connections to be
> > > > distributed across
> > > > > > > >mini-servers
> > > > > >
> > > > > > The component formerly known as jpoll. Open source now has an
> > > > > > equivalent called dspm (or dpsm, never can get it straight).
> > > > > >
> > > > > > As it stands, j.com has pretty much rewritten most of jabberd
> > > > > > to be super
> > > > > > efficient and thread-safe. This was _not_ a minor
> > > > undertaking, but was
> > > > > > well worth the effort. Jabber.com provides a super-fast,
> > > > fully QA'd
> > > > > > and peer-reviewed implementation of jabberd/jsm/etc. They've
> > > > > > worked very
> > > > > > hard to make it scalable and robust. :) Doing these sorts
> > > > of things
> > > > > > (scalability and robustness) have not been things that
> > > > the Open Source
> > > > > > movement has shown much interest in this far (with good
> > > > reason). Very
> > > > > > few people need to run a Jabber server for 200k+
> > concurrent users;
> > > > > > these are (some of) the people that Jabber.com caters to.
> > > > > >
> > > > > > Hope that helps. :)
> > > > > >
> > > > > > Diz
> > > > > >
> > > > > > _______________________________________________
> > > > > > jdev mailing list
> > > > > > jdev at jabber.org
> > > > > > http://mailman.jabber.org/listinfo/jdev
> > > > > >
> > > >
> > > >
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> > > >
> >
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> >
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