Re: [Dovecot] nfs_flush_fcntl failed: No locks available

On Mon, 2008-11-10 at 13:32 +0000, Mark Zealey wrote:

Hi there,

I've been seeing this error in our logs quite frequently on our nfs storage (v3):

2008-11-10T13:24:26+00:00 mail8 dovecot: IMAP(XXX@YYY.com): nfs_flush_fcntl: fcntl(/var/spool/mail/XXX/Maildir/dovecot.index.cache, F_RDLCK) failed: No locks available

Which is because we don't run lockd on our servers. Why is dovecot trying to use fcntl() ? I explicitly set it to use dotlocks in the dovecot config:

mail_nfs_*=yes settings try to use fcntl for flushing data cache. There's really no other way to do it on Linux. Although having nano/microsecond resolution timestamps on NFS server probably would make it irrelevant. Hmm.