> ls -l /proc/15999/fd/6 > lrwx------ 1 cyrus mail 64 Mar 1 11:15 /proc/15999/fd/6 > -> /var/lib/imap/deliver.db > > I disabled duplicate suppression in imapd.conf for now and the > situation > has improved greatly since. Does anyone have this kind of problem with > lock contention in heavily loaded servers? Is there anything that can > be > done to tune this, other than disabling the duplicate test? FWIW, I turned off duplicatesuppression to no avail -- lmtpd still locks and writes to /var/imap/deliver.db. ...So are you sure it's really turned off? John -- John Madden Sr. UNIX Systems Engineer Ivy Tech Community College of Indiana jmadden@xxxxxxxxxxx ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html