[jdev] Re: [jadmin] Re: One million concurrent user

[Jon Phillips]

Tom Coffin wrote:
> I've been working with Jabber.com's XCP (for 2.5 years).  We have a
> large ISP application, and we required that it scale to the hundreds of
> thousands.  They pitched their XCP 4.1, and it looks pretty good --
> we're upgrading.
> 
> We've been using a much older version, and have been happy with the
> stability.  Since then they've worked on making it Data Center quality
> (logging, reliability, redundancy, scalability, Web Admin, even
> _documentation_!!)  We did a survey of the other commercial products,
> and this one definitely was all there.  
> 
> We kicked the tires in our lab with 2 commercial products in an 8
> machine, 100k concurrent user capacity cluster with 2 active XMPP
> Routers.  We had 2 routers, 4 front-end machines. And we ran a half-day
> load test.
> 
> We liked Jabber.com.  They definitely have a plan for scalabilty that
> works in Active/Active mode that I believe will scale to millions of
> users.  However, I still think they could have a better failover plan.
> 
> If you're serious about million user capacity, I really think you need
> to go commercial.  Of course you'd also need to get off of Linux and go
> to Solaris too.  Get yourself some big Sun servers with lots of
> processors.  Get Oracle.  Put it all in a data center with raised floors
> and 24x7 admins and pay union guys to run your cables.  Come play with
> the big boys!
> 

Could you recommend some commercial solutions then for Jabber to scale up and 
beyond 1 million concurrent users.

I've implemented a jabber client that uses jabberd2 open source server and we 
are going to need it to scale to well above the 1 million concurrent users mark.

What in everyone's opinion is the ideal setup for scaling up and beyond 1 
million users?

Right now we have moved all jabber services to its own box, but once this 
software goes open beta (gopetslive.com), we are going to need to scale up.

I'm just curious from developers as well, as where energy needs to be put in the 
open source tools that can benefit the community for making jabber an enterprise 
and greater scalable solution.

How many concurrent users does MSN or AIM have I wonder, and how is scalability 
dealt with in their systems, which are obviously proprietary IM protocols.

Jon

> -------------------------------------------------------- 
> IM Server Architect and Team Lead 
> BellSouth Internet Group 
> 
> 
> -----Original Message-----
> From: jdev-bounces at jabber.org [mailto:jdev-bounces at jabber.org] On Behalf
> Of Richard Dobson
> Sent: Friday, January 07, 2005 12:28 PM
> To: Jabber software development list
> Subject: Re: [jdev] Re: [jadmin] Re: One million concurrent user
> 
> 
>>If it is not important to have the same domain name for the one 
>>million users then the solution is trivial - just deploy f.e.100 
>>servers with 10000 users on each. :)
> 
> 
> You dont have to have them on different domain names to be able to have
> 100 servers, you just use a jabber server with a distributed
> architecture, which is where the commercial jabber server solutions come
> in.
> 
> 
>>This solution brings an additional benefit - failure proof. Small 
>>server can be much easily replaced than big one.
> 
> 
> The solution of 100 servers each serving its own different domain is not
> failure proof at all (if one server goes down none if its users will be
> able to login), its only failure proof if any user can login to any of
> the servers with a single set of credentials, which is something only a
> distributed load balanced jabber server can provide.
> 
> Richard
> 
> 
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-- 
Jon Phillips

USA PH 510.499.0894
jon at rejon.org
http://www.rejon.org

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