> > Corrupted index cache file /local/data/dovecot/indexes/mail/X/ > > XXXXXXXX/.imap/delivery.log/dovecot.index.cache: Broken MIME parts > > for mail UID 30880 > > Is it always this same UID? How often does it happen? Every 5 minutes?
The UID is increasing by one each time. There does not seem to be a pattern. Here's a sample from the past couple of days: Jun 8 05:56:57 ... UID 30859 Jun 8 06:14:44 ... UID 30860 Jun 8 09:03:01 ... UID 30861 Jun 8 09:44:27 ... UID 30862 Jun 8 10:25:48 ... UID 30863 Jun 8 11:30:46 ... UID 30864 Jun 8 12:00:49 ... UID 30865 Jun 8 12:48:12 ... UID 30866 Jun 8 13:53:12 ... UID 30867 Jun 8 14:17:04 ... UID 30868 Jun 8 14:29:44 ... UID 30869 Jun 8 17:35:01 ... UID 30870 Jun 8 18:34:49 ... UID 30871 Jun 8 18:41:14 ... UID 30872 Jun 8 22:25:33 ... UID 30873 Jun 8 23:36:45 ... UID 30874 Jun 9 01:28:36 ... UID 30875 Jun 9 03:25:57 ... UID 30876 Jun 9 06:33:33 ... UID 30877 Jun 9 10:11:08 ... UID 30878 Jun 9 10:23:47 ... UID 30879 Jun 9 10:29:56 ... UID 30880 Jun 9 12:40:48 ... UID 30881 Jun 9 13:40:08 ... UID 30882 Jun 9 13:58:18 ... UID 30883 Jun 9 14:28:23 ... UID 30884 > Can you reproduce this manually somehow? If there's a way to reproduce > this, I'd like to get a copy of the mailbox. You can put the mailbox > through http://dovecot.org/tools/mbox-anonymize.pl and hopefully it > will then still break. It is doubtful that I would be permitted to send a copy of the mailbox, anonymized or not. It is questionable whether I would even be permitted to make a copy of it as an experiment. > Dovecot anyway detects that data in cache file is corrupted, so it > deletes the entire cache file. If IMP actually fetches something like > BODY or BODYSTRUCTURE for all messages, that causes all the messages > to be read since the cache was just deleted. Is there an easy way to tell if the cache file has been deleted and recreated? For example, will the inode number change? I enabled mail_debug for a short while this morning and did not notice anything unusual with the logs for this user: connect, set up namespace, disconnect just like everyone else. At any rate, the Dovecot stats report "bytes out" of about 500MB every five minutes (when the user's session closes); would this include the data read to build the index? I suspect not. -- Chris O'Regan <ch...@encs.concordia.ca> Senior Unix Systems Administrator, Academic IT Services Faculty of Engineering and Computer Science Concordia University, Montreal, Canada
