On Tue, 2006-11-07 at 11:56 -0500, bofh list wrote:
On 11/2/06, Timo Sirainen tss@iki.fi wrote: On Wed, 2006-10-18 at 17:53 -0400, bofh list wrote: > Hi, > > Our dovecot setup consists of two hosts running dovecot-1.0.beta9 with > Maildir/indices stored on NFS(noac,actimeo=0 used). > > I am seeing these messages at times - but no real problems on the > client side. Is this something to worry about? > > dovecot: Oct 17 10:33:31 Error: IMAP(user): Corrupted index cache file > mailstore/user/Maildir/.mail.incoming/dovecot.index.cache: invalid > record size 1.0.beta9 is old. I've done several fixes to cache file handling since. Anyway the cache corruption errors aren't too bad, since they're fixed automatically and they won't show up to users at all.
FWIW, we are still seeing these index corruption errors in dovecot-1.0rc12.
dovecot: Nov 06 17:19:37 Error: IMAP(1): Corrupted index cache file mailstore/1/Maildir/dovecot.index.cache: invalid record size
What OS are you using as the NFS client? I think the most likely reason for these is that the OS still does some kind of caching even though the cache is disabled. The cache file is handled a bit specially from locking point of view, which might cause problems unless the NFS client really does no caching at all.