[Dovecot] Sudden, large numbers of "Timeout while waiting for lock for transaction log ..."

[Timo Sirainen]

On Wed, 2009-01-07 at 08:32 -0800, Jack Stewart wrote:

> Timo Sirainen wrote:
> > On Tue, 2009-01-06 at 23:11 -0800, Jack Stewart wrote:
> >> an  6 01:21:02 earth-griffen dovecot: IMAP(zabala): Timeout while 
> >> waiting for lock for transaction log file 
> >> /var/spool/dovecot/indexes/z/zabala/.INBOX/dovecot.index.log
> > 
> > This is the main problem. So indexes are also on NFS? What locking are
> > they using (dovecot -n output)?
> > 
> 
> Yes, the indexes are also on NFS.
> 
> The locking is fcntl() - the default.

I'm guessing that's the problem. NFS locking seems to break/hang
randomly sometimes. Can you somehow restart the NFS server locking
daemon?

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