On July 24, 2017 at 7:54 PM Bruce Guenter <bruce@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@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