[Dovecot] dotlock errors without using dotlock

[Timo Sirainen]

On Thu, 2007-12-20 at 10:31 -0500, Brian Taber wrote:
> I have a few clients that have more than one user in the same mailbox.  
> I have my setup using fctrl for mailbox and index locking.  My mail is 
> stored on a network file system (gluster) and my indexes are stored on 
> the local drive.  I have a few issues:
> 
> - My users mailboxes have issues where messages will be mixed up (you go 
> to open a message and it gets a different message)
> - messages will dissappear
> - unable to open or delete messages
> - errors in log about dotlocks being overwritten

Do you use Dovecot on multiple servers? I just tested GlusterFS a few
days ago myself and noticed that it has similar caching issues as NFS
(http://wiki.dovecot.org/MailLocation/SharedDisk). For a reliable setup
you pretty much need v1.1 with mail_nfs_storage=yes.

> Our dotlock file /mail/mydomain.com/webmaster/dovecot-uidlist.lock was 
> overridden (kept it 0 secs)

Although I don't think this should happen anyway. Do you have all the
servers' clocks synchronized (less than 1sec apart)?

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