[Dovecot] Maildirs location migration

[Thomas Hummel]

On Tue, Apr 16, 2013 at 02:00:38PM +0300, Timo Sirainen wrote:

> The worst that can happen is:
> 
> 1) Client sees new mail 123 in old server
> 2) Client sees only mails up to 122 in the new server
> 3) Client again will see mail 123 after a while
> 
> I'm actually not sure how clients will handle that. It is an IMAP
> protocol violation. 

Why is it a protocol violation ? if new was up to 122, nextuid would have been
123 so what's the problem, protocol wise, to see 123 come later ?

Of course if a new mail is delivered in new as 123, there 's a conflict.  But
as you said dsync knows how to handle this and would assign new uids to both
and the client, as you said, could get confused about what he thought was 123.
But even in that case, wouldn't he see the message (as a new one with it's new uid) ?
I mean, nothing would be "lost" ?

Thanks

-- 
Thomas Hummel 	    | Institut Pasteur
<hummel at pasteur.fr> | Groupe Exploitation et Infrastructure