[Pacemaker] future of DLM

[Michael Schwartzkopff]

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.

-- 
Dr. Michael Schwartzkopff
Guardinistr. 63
81375 München

Tel: (0163) 172 50 98
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