Hey,
I am testing Glusterfs as a storage backend for dovecot as a LDA and imap server. I have seen similar lines in the logs to these: May 21 10:46:01 mailgw dovecot: imap(eliezer@ngtech.co.il): Warning: Created dotlock file's timestamp is different than current time (1400658105 vs 1400658361): /home/vmail/ngtech.co.il/eliezer/Maildir/.Mailing_lists.ceph_users/dovecot-uidlist May 21 10:46:01 mailgw dovecot: imap(eliezer@ngtech.co.il): Error: Transaction log /home/vmail/ngtech.co.il/eliezer/Maildir/dovecot.index.log: duplicate transaction log sequence (2713)
The volume is mounted only by one server with ubutntu 14.04. I have seen threads and posts about similar issue with nfs. I want to try to debug the issue but note that with the same settings of the server nfs worked fine but slower. dovecot -n output: http://pastebin.centos.org/9626/
The glusterfs is a replicated volume constructed of two bricks which is mounted only on one dovecot server. All three servers are using the same ntp pool and are synced.
Any direction is better then the state I am now.
Thanks, Eliezer