Apple and their new Mail Clustering in Leopard 10.5

[David Korpiewski]

I haven't seen any discussion on Apple's new mail clustering that they 
are putting into OSX Leopard server 10.5.

I was just wondering if anyone knew anything on how it worked?  I've 
actually had the opportunity to play with it.   I set up my xsan, I set 
up the two mail servers.  It has the ability to turn "clustering on" and 
then it creates a single directory that both servers access on the xsan. 
   Under this director is a common shared imapd.conf, cyrus.conf, and an 
empty database directory where I'm guessing the future database will go 
that the two servers share.

Anyways, I was wondering if apple has introduced true round robin 
syncing and if they have a multiple simultaneous access database? 
During our initial testing it was found that it seemed like if you 
updated the system on one side, it would sync the changes to the other 
system in a few seconds.   It appeared to go both ways, which is very 
exciting.  However, by setting both systems up to use the same database, 
we were getting database corruption, so I don't think that is resolved 
yet.  Although it took hours instead of seconds to corrupt the database. 
  I'm guessing they would have to probably change the database from 
Berkley to something that can support multiple accesses?

Thanks!
David



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David Korpiewski                     Phone: 413-545-4319
Software Specialist I                Fax:   413-577-2285
Department of Computer Science       ICQ:   7565766
University of Massachusetts Amherst
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