[Dovecot] Replication (Re: MySQL as a storage only.?)

[Seth Mattinen]

Timo Sirainen wrote:
> 
> I've also planned easy replication support for Dovecot. Also I don't 
> think doing the SQL replication correctly and without losing any data on 
> error conditions is as easy as you think.


Multiple master in MySQL is still more of a hack. Also, performance for 
billion-row SQL tables is rather poor for something interactive like 
clicking on a message in IMAP and expecting it to pop up right away.

I'm looking forward to master-master replication. Not SQL though; I 
can't find the link now but I remember reading about a master-master 
system that Dovecot would use to sync maildir/dbox over N masters or 
something. A pool of beefy master-master Dovecots with a load balancer 
in front of them would be wonderful - I'm not too keen on the "user a 
goes on server a, user b on server b" system. I'd love to help out but 
my own development schedule is beyond full at the moment. =)

~Seth