[Samba] Samba with CTDB able to serve non-clustered data?
alxgomz at gmail.com
Thu Aug 11 21:31:27 UTC 2016
Le 11 août 2016 22:04, "Martin Schwenke via samba" <samba at lists.samba.org>
a écrit :
> Hi Steve,
> On Thu, 11 Aug 2016 14:46:53 -0400, Stephen Cousins via samba
> <samba at lists.samba.org> wrote:
> > Thanks very much for the information.
> > I guess the part:
> > * Coherency of the file data you serve with Samba
> > You need to make sure that updates to the data that you are serving
> > are seen coherently across the cluster.
> > Is the tough one. Is there a way to do this that you know of when using
> I don't have the NFS expertise to answer this. Hopefully someone else
> will step in with an answer...
Although I wouldn't call myself an NFS expert, I already had to deal
NFS differs largely from distributed filesystem. It is a shared fs. Its
different nature makes consistency consideration less relevant than for
Having said that, there are a couple of options you should set carefully.
Some on the NFS server, some others on the NFS client (here your samba
- NFS Server options:
> use synchronous exports (sync)
- NFS Clients options:
> disable client cache when mounting the export (noac)
> disable locks at Mount time (nolock)
Please note that the options above aim at providing reliable and consistent
data. They also have a performance impact and you should test how bad it
impacts your setup. This is a matter of trade-off.
Generally speaking, I wouldn't recommend re-sharing NFS exports. I always
had unexpected behaviors in this setup. Nfs not being posix compliant, be
prepared for some weird stuffs.
> > I see version 4.5 RC2 was just released. Do you know when it will be
> > released?
> The current plan is first half of September:
> peace & happiness,
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