Corrupt index files

[Aki Tuomi]

> On July 24, 2017 at 7:54 PM Bruce Guenter <bruce at untroubled.org> wrote:
> 
> 
> On Mon, Jul 24, 2017 at 08:39:36AM +0300, Aki Tuomi wrote:
> > Do you have users accessing the files concurrently from more than one
> > dovecot instance at a time?
> 
> Yes. Apparently it is fairly common behavior for some IMAP clients to
> open up multiple connections to the same mailbox. Some times the
> multiple accesses came from different servers (stand alone IMAP client
> and a webmail system), but there is corruption even when all the
> accesses are going through the same server.
> 
> (Yes, we need a director. I am working on integrating that into our network.)
> 
> -- 
> Bruce Guenter <bruce at untroubled.org>                http://untroubled.org/

Well, dovecot does not really guarantee access concurrency safety if you access indexes using more than one instance of dovecot at the same time.

Nevertheless, did you try w/o LizardFS, just to rule out any bugs or incompabilities?

Aki