Cyrus 2.3 on shared filesystems
Attila Nagy
bra at fsn.hu
Wed Nov 3 12:50:20 EST 2004
Ken Murchison wrote:
>> Is replicated murder consists of multiple backend server groups which
>> has the same mailboxes? So murder will say that user.jsmith is on
>> server1 AND server2, instead of just saying it's on server1 OR server2?
> Yes. Any machine in the Murder has local access to any mailbox.
Hmm. If any machine can access any of the mailboxes, why is murder
necessary?
Above, I described a setup, similar to this (ASCII art follows):
+-----+ +-----+ +-----+ +-----+
|IMAP1| |IMAP2| |IMAP3| |IMAP4|
+--+--+ +-----+ +--+--+ +-----+
| / | /
+--+--+ +--+--+
|STOR1| |STOR2|
+-----+ +-----+
So murder is necessary to make the namespace unified. This way the
MUPDATE servers say that a mailbox on STOR1 storage is on IMAP1 and
IMAP2, so IMAP3 can't access mailboxes on STOR1. Does this work?
> Its designed to work on a shared filesystem SAN (GFS, QFS, CXFS) where
> all of the machines have direct access to each mailbox, but each machine
> has its own replicated copy of mailboxes.db.
So when I use replicated murder the mailbox database moves to the local
(backend IMAP) server?
Sorry if the answers are trivial, there are no docs regarding this
topic, so I cannot RTFM :)
--
Attila Nagy e-mail: Attila.Nagy at fsn.hu
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