Quoting Dirk-Willem van Gulik <di...@webweaving.org>:
On a smal cyrus imap 2.5.3 setup (freebsd ports, default settings,
5k users, 300 Gb mboxes) we are seeing very sporadic `loss' of
messages (once every few months; 1 or 2 messages; out of a few 100k
to a million going through perfectly fine in the same period).
They disappear; but are still present as a /var/spool/imap/user/X/12345.
files.
But cannot be found; even when searching through IMAP on message-ID
or otherwise unique elements. Searches in the same veign for the
messages before/after the lost one work and return those.
A grep through the cyrus.index shows its unique message ID.
A full reconstruct with /-r/-R/-G does not seem to bring it back as visible.
The mesaages lost are otherwise normal; fully valid mime; and when
re-injected - pass through and surface.
What is the right way to debug this ? We suspect it may have
something to do with either (al)pine and thunderbird; as it seems to
hit users that mix those two clients - during periods they use both.
All else seems normal.
Do you use delayed expunge mode (man imapd.conf see expunge_mode)?
If yes, "unexpunge -l user/X" will show you the mails that have been
deleted but are still on the disk.
You will also see the time the mail was deleted.
Regards,
Michael Menge
--------------------------------------------------------------------------------
M.Menge Tel.: (49) 7071/29-70316
Universität Tübingen Fax.: (49) 7071/29-5912
Zentrum für Datenverarbeitung mail:
michael.me...@zdv.uni-tuebingen.de
Wächterstraße 76
72074 Tübingen
