On Fri, Mar 28, 2008 at 10:53:49AM -0400, Dean Brooks wrote: > We are still getting, on a daily basis, users who cannot move messages > to Trash or expunge Trash due to these errors: > > Mar 28 10:43:57 tm2 dovecot: [ID 107833 mail.error] IMAP(kss021): > mbox sync: UID inserted in the middle of mailbox > /home/kss021/Mail/Trash (3137 > 536, seq=2, idx_msgs=76) > > Our users have no other access to their mailbox other than Dovecot, > and we are using mbox format and 1.1rc3. > > Deleting the indexes fixes the problem, so it seems to be a problem > with index corruption and not something inherently wrong with the > mailbox. That is, once I delete the index files, the problem does not > come back immediately. > > I've seen others on the list with the same problem, but I wasn't able > to find a workaround. It's happening more and more frequently. > > I guess what I don't understand is why Dovecot cant just mark the index > invalid and purge it instead of failing over and over. I thought the > whole point behind Dovecot's indexing is that it was able to detect > index inconsistencies and mark the index invalid.
For what it's worth, I set "mbox_lazy_writes = no" in dovecot.conf and the problem hasn't happened all weekend. Previously, it was happening hourly. It seems that there may be some lingering bugs in the lazy_write logic. If anyone is running into this problem on a regular basis, I would try disabling lazy writes and see if that helps. I'm not sure why everyone isn't having this problem given how such a stock vanilla configuration we're using, but maybe it's just related to server volume. -- Dean Brooks [EMAIL PROTECTED]
