On Thu, 2011-11-03 at 10:54 +0100, Maria Arrea wrote: > Hello. > > We are running dovecot 2.0.13 with mdbox+zlib on RHEL 5.7 x64, ext4. We use > NTP. Indexes are in a iSCSI raid 10, mailboxes in raid5. No NFS. We have > detected that sometimes all users get disconnected from roundcube at the same > time. In dovecot logs we hundreds of lines like this: > > Nov 3 09:23:07 buzon dovecot: imap(mcrivero@mydomain): Warning: Created > dotlock file's timestamp is different than current time (1320308587 vs > 1320308542): /buzones/mydomain/03/67/mcrivero/subscriptions
I did several fixes related to this, but they were already in v2.0.10. Note the time difference of 45 seconds. > Nov 3 09:23:07 buzon dovecot: imap(mcrivero@mydomain): Connection closed > bytes=0/295 The dotlock warning isn't related to this. My guess: NFS was being extremely slow here, some operation took 45 seconds and Roundcube decided to abort before that. The "timestamp is different" check doesn't work 100% correctly if the filesystem operations take more than a second.
