[Samba] CTDB and NFS4

Volker Lendecke Volker.Lendecke at SerNet.DE
Tue Mar 11 01:30:59 MDT 2014

On Fri, Mar 07, 2014 at 12:32:01PM +1300, Stephen Ward wrote:
> I'm sorry if this has already been covered somewhere, but I've had a look
> and can't find it.  Also if there is a better place for this question,
> please let me know.
> I know that the CTDB documentation states that only NFS2/3 are supported
> with CTDB but what I'd really like to know is why NFS4 won't work and if
> NFS4 support is planned for the future (timeline?).  Also can anyone
> suggest any work arounds/development versions/anything that may help with
> this?
> I have a cluster that works well with samba4 and NFS3 (on GPFS/RHEL) but
> unsurprisingly, while NFS4 works ok normally, if I stop the server a client
> is using any access attempts will freeze on the client.

Is that really a NFS4/CTDB question? With hard mounts that's
pretty much what I would expect.


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