[Dovecot] Linux, Maildir over NFS, Locking problems

[Terrence Martin]

I should mention I am using dovecot version

dovecot-0.99.14-1.1.el3.rf

Terrence


Terrence Martin wrote:

> Hi,
>
> I am having problems with file locks with my NFS mounted Maildir setup.
>
> NFS Client/IMAP Server is RHEL3 clone whitebox and NFS server is a 
> Fedora Core 2 system.  Both are running lockd as far as I can tell.  
> dovecot is installed with Dag's latest dovecot RPMs for RHEL3. Time is 
> synced between the two systems.
>
> Here is the pertinent log file entry
>
> dovecot: Dovecot starting up
> Apr  7 11:17:42 sentry imap(tmartin): 
> /home/tmartin/Maildir/.subscriptions failed with subscription file 
> file_wait_lock(): No locks available
>
> Now what I can find in nfs.txt is that I need to use fnctl is this
>
> ".customflags and .subscriptions files require fcntl() locking currently.
>   Many NFS servers don't support it, at least without a separate lockd
>   daemon. These will be fixed later to be NFS-safe by default."
>
> My question is am I using fcntl? The only reference I can find in the 
> config refers to mbox formats, but I am using maildir. Setting the one 
> reference to fcntl does not seem to have any effect. Is there a 
> configuration setting to tell the server to use fcntl locks or a way 
> to tell if it is trying to use fcntl locks?
> Thanks for any tips,
>
> Terrence
>