No one got any idea at all why skiplist is logging what appear to be
corrupt paths (very occasionally)?
Feb 20 08:47:43 server imaps[54108]: skiplist: checkpointed
/vol/server/imap/user/q/ÿÿÿÿÿÿÿÿreginald.seen (2 records, 324
bytes) in 0 seconds
I've also noticed we have corresponding:
Feb 20 13:39:54 server imaps[67147]: seen_db: user ÿÿÿÿÿÿÿÿreginald
opened /vol/deer/imap/user/q/ÿÿÿÿÿÿÿÿreginald.seen
So it looks like the username is getting corrupt somewhere? (After
authentication/connection)? On a machine with ECC (no errors logged) and
ZFS (no errors logged) this can't be good :(
Any idea where to start looking/logging?
-Karl
--On 20 February 2013 09:42 +0000 Karl Pielorz <kpielorz_...@tdx.co.uk>
wrote:
Hi,
We're currently running Cyrus IMAP 2.3.18 on FreeBSD 7.x amd64, on a
machine with ECC and ZFS as the backing store (this machine has been in
service for quite a while - through a number of IMAPd upgrades). No
drive, memory or ZFS errors are logged.
Recently, a couple of users have noticed that when they visit seldom used
folders, all the mail is marked as 'Unread' (when it wasn't before).
Marking mail as read - then leaving the folder, or restarting the client
- and it appears as 'Read' still - but at some random point, it all gets
flipped back to 'Unread' (these are not 'shared-seen' folders).
Looking at the server - I found the following logged (the only thing I
could see that was 'out of the ordinary'):
"
Feb 20 07:19:29 server imaps[52821]: skiplist: checkpointed
/vol/server/imap/user/j/jason.seen (32 records, 36380 bytes) in 0 seconds
Feb 20 07:19:53 server imaps[52820]: skiplist: checkpointed
/vol/server/imap/user/f/fred.seen (11 records, 18868 bytes) in 0 seconds
Feb 20 08:47:43 server imaps[54108]: skiplist: checkpointed
/vol/server/imap/user/q/ÿÿÿÿÿÿÿÿreginald.seen (2 records, 324
bytes) in 0 seconds
Feb 20 08:54:58 server imaps[75469]: skiplist: checkpointed
/vol/server/imap/user/j/john.seen (13 records, 1124 bytes) in 0 seconds
"
I don't like the look of the entry for 'reginald' - on the actual file
system we have:
/vol/server/imap/user/q/????????andrew.seen
/vol/server/imap/user/q/????????darren.seen
/vol/server/imap/user/q/????????john.seen
/vol/server/imap/user/q/????????reginald.seen
Which is odd, as well as the more expected:
/vol/server/imap/user/a/andrew.seen
/vol/server/imap/user/j/john.seen
/vol/server/imap/user/d/darren.seen
/vol/server/imap/user/r/reginald.seen
There's about 30 users on the system - but only the ones above have both
.seen files under the regular, as well as 'q' directories. Two of the
above users have noticed the symptom where folders suddenly 'ping' back
to all messages unseen. I suspect the others either haven't noticed, or
just thought it was them.
Any ideas?
Regards,
-Karl
