[JDEV] Request for comments on system using jabber

[Jens Alfke]

On Thursday, May 24, 2001, at 10:23 AM, Todd Bradley wrote:

> Jabberbot's roster on Jabber.com is about 10 times the size of the next 
> largest user's roster.  Whenever Jabberbot tries to log in now, it 
> causes all kinds of server mayhem because every presence change causes 
> the server to go read and parse rosters of everyone in Jabberbot's 
> roster.  This, and the subsequent traffic backups, crash the server at 
> Jabber.com

I don't mean to sound snotty, but: This demonstrates a 
performance/scalability issue with the server (not to mention an 
outright bug if it actually crashes), not a reason not to use presence 
for this purpose.

How large is that roster? If Jabber isn't scalable to this level, it may 
not yet be ready for widespread use. (Consider a mail server that 
crashed if you tried to send a message to more than 100 people at a 
time.) There is a very, very large degree of interest in the industry 
right now for exactly these sorts of IM bots.

—Jens
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