[Pacemaker] future of DLM

[Lentes, Bernd]

Michael wrote:

Am Donnerstag, 28. Februar 2013, 11:13:42 schrieb Lentes, Bernd:
> Lars wrote:
>
> >
> >
> > Hi Bernd,
> >
> >
> >
> > > in the german IT newspaper "Linux-Magazin" 2/13 was an
> >
> > article, which says that the future of DLM (Distributed Lock
> > Manager) is unclear.
> >
> > > I'd like to create a HA cluster with two nodes, accessing
> >
> > concurrently one FC SAN with OCFS2. I need DLM.
> >
> > > I wonder that the future is unclear because, afaik, DLM is
> >
> > integrated in the kernel. If it is not properly maintained,
> > of course i would not like to use it.
> >
> >
> >
> > The article is a bit ... exaggerating. The in-kernel DLM of course
> > continues to be mainainted, and OCFS2 (in user-space mode)
> > will continue
> > to consume it too. (Just like GFS2.)
> >
> >
> >
> > It also accusses SLE HA of sticking to an old DLM version, which isn't
> > true either - it's true we backport changes selectively (and
> > can't break
> > the wire protocol, which affects the controld user-space code
> > we can use
> > there), but that's the whole point of a "stable" enterprise
> > distribution.
> >
> >
> >
> > It's a bit alarmist. But the author should be participating on this
> > list, that should be a fruitful discussion ;-)
> >
> >
> >
> >
> > Regards,
> >
> > Lars
> >
> >
>
> Hi Lars,
>
> thanks for claryfying that. So i can use DLM without any concern ?
>
>
> Bernd

yes.



Hi,

no matter which of the two i choose ?


Bernd

--

Helmholtz Zentrum München
Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)
Ingolstädter Landstr. 1
85764 Neuherberg
www.helmholtz-muenchen.de
Aufsichtsratsvorsitzende: MinDir´in Bärbel Brumme-Bothe
Geschäftsführer: Prof. Dr. Günther Wess und Dr. Nikolaus Blum
Registergericht: Amtsgericht München HRB 6466
USt-IdNr: DE 129521671