[Dovecot] nfs_flush errors

[Dean Brooks]

On Thu, Jul 10, 2008 at 05:20:21PM -0700, Hans Wunsch wrote:
> Message: 7 Date: Wed, 09 Jul 2008 09:30:13 -0400 From: Ben Winslow 
> <rain at bluecherry.net> Subject: Re: [Dovecot] nfs_flush errors To: 
> dovecot at dovecot.org Message-ID: <4874BD65.1010905 at bluecherry.net> 
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hans Wunsch 
> wrote:
> 
> >> I'm looking for some help with an nfs error that is filling our logs.  I 
> >> get a constant stream of these messages:
> >> 
> >>  Jul  8 10:47:08 servername dovecot: [ID 107833 mail.error] 
> >> IMAP(username): nfs_flush_file_handle_cache_dir: rmdir(/var/mail) 
> >> failed: Device busy
> >  
> 
> >What OS are your dovecot and NFS servers running?  Is /var/mail (or 
> >whatever it may be symlinked to) an NFS mountpoint?
> 
> 
> We're on Solaris 10x86 mounting /var/mail from another Solaris 10 hosts via 
> NFS4.
> 
> Yes, /var/mail is an NFS.  These are the mount options:
> 
>  mayor.ics.uci.edu:/mail_tank_001/spools     -       /var/mail       nfs -  
>  yes rw,nosuid,hard,intr,bg,noac

Are you using Dovecot version 1.1.1?  If you are using an earlier
version (i.e. a 1.1 release candidate), there was an update that was
made that eliminited these errors in certain circumstances.
Specifically under Solaris I might add.

If you are using 1.1.1, I'll have to defer to others to solve the
problem.  I just remember running into those errors and having them
disappear once I upgraded to a final release version.

--
Dean Brooks
dean at iglou.com