[Dovecot] Imap Timeouts

[Curtis Maloney]

Dean Blackburn wrote:
> 
> I'm running beta3 (upgraded from beta1) on OS X 10.4.4, and we're 
> basically seeing two problems:
> 
> 1) total imap/dovecot crash after a period of repeated "too many files 
> open" errors... Restarting fixes it, but we'll see if increasing the 
> open files limit is the answer or not... Never run into this with 
> anything before, so I'm not confident;

Several other people on this list have run into this problem, and I believe 
raising the limit has solved the issue for them.

> 2) individual user accounts will become inaccessible occasionally when 
> multiple clients are hitting the account at once (checking from home and 
> work) - deleting all dovecot* files in the maildir fixes this, but... I 
> thought Dovecot was supposed to catch this kind of thing and regenerate 
> the files by itself? I think this is also the "locking problem" in the 
> sense that once this occurs, the directory will fill up with lockfiles 
> for each message the user unsuccessfully tries to load from the client 
> side.

This really sounds like a locking issue more than index corruption.  Are your 
INDEX and CONTROL files stored on NFS?  I believe this is still discouraged, 
with the next version having better/safer locking.

--
Curtis Maloney
cmaloney at cardgate.net