On 20 Dec 2007, at 16:41, Timo Sirainen wrote:
On Thu, 2007-12-20 at 10:31 -0500, Brian Taber wrote:
I have my setup using fctrl for mailbox and index locking.
Oh, and as for this, Dovecot uses only dotlocking for maildir's
dovecot-uidlist file, regardless of what your settings are. I was
thinking about changing this in future releases though.
A vote for getting this changed - we've been seeing terrible IMAP
performance under Solaris 10 when CONTROL points to a ZFS filesystem,
seemingly caused by excessive latency on the low level zfs_create()
call (client sessions sometimes lock for in excess of a minute).
Background reading suggests that ZFS currently reacts badly to the
constant creation/deletion of many tiny files (to give you an idea of
scale we have ~20k users). As a workaround we've had to create a UFS
filesystem on a ZFS volume to house CONTROL files.
Regards,
Robin
