> > Using the flat configuration for the mailbox.db the slow start > > disapepars. May I use a flat database for 4300+ mailbox? > > Do you think I could have other performance problems in > > delivery/accessing the mailbox? > > I considered creating a GFS spool for a 50000 mailbox system, but during > testing, the GFS lock overhead would've been too much during delivery > peaks. Probably had to do mostly with delivery.db locking. so far, with 4300+ users it is safe to use a flat database for the mailbox.db but I will encounter issues with the delivery. If I'm not wrong the delivery.db database is reported as duplicate_db in the imapd.conf and it is not possible to set it as flat. We don't use the suppression capability of the cyrus ( a bug of the outlook message id in the read_confirm&reply ) so It could be safe to put 2 separate database on the local FS. Is this correct? Regards Maurizio ---- 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