[Dovecot] Corrupted index cache file dovecot.index.cache: invalid record size

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

Thanks!