dovecot - Nov 2012 - fs_flush_file_handle_cache_dir: rmdir(/var/mail) AGAIN

We are running Dovecot 2.0.12. It runs on only one server and /var/mail 
is local where all the INBOX's are stored. Users other IMAP folders are 
NFS mounted on the server.

We see frequent

Error: nfs_flush_file_handle_cache_dir: rmdir(/var/mail) failed: Device busy

I know this error message has been around a long time. Should we still 
be seeing it on 2.0.12 with a local /var/mail. Perhaps the message is 
misleading and really complaining about folders other than INBOX that 
are NFS mounted.


Our config has

dovecot.conf:mail_nfs_index = no
dovecot.conf:mail_nfs_storage = yes

is that correct given the above?

Also, does the flush error messages have any real consequences? My 
understanding is that the rmdir is meant to fail, just to force a flush.

On 19.11.2012, at 16.02, Ken Mandelberg wrote:
> We are running Dovecot 2.0.12. It runs on only one server and /var/mail is
local where all the INBOX's are stored. Users other IMAP folders are NFS
mounted on the server.
> 
> We see frequent
> 
> Error: nfs_flush_file_handle_cache_dir: rmdir(/var/mail) failed: Device
busy
> 
> I know this error message has been around a long time. Should we still be
seeing it on 2.0.12 with a local /var/mail. Perhaps the message is misleading
and really complaining about folders other than INBOX that are NFS mounted.
> 
> Our config has
> 
> dovecot.conf:mail_nfs_index = no
> dovecot.conf:mail_nfs_storage = yes
With just one Dovecot server you don't need mail_nfs_storage=yes setting.
Just set it to "no" and the error disappears.
> Also, does the flush error messages have any real consequences? My
understanding is that the rmdir is meant to fail, just to force a flush.
Yeah, nothing breaks, just extra logging.