[Cluster-devel] DLM Shutdown

[David Teigland <teigland@redhat.com>]

On Wed, Feb 10, 2016 at 09:38:58PM +0100, Andreas Gruenbacher wrote:
> On Wed, Feb 10, 2016 at 9:18 PM, David Teigland <teigland@redhat.com> wrote:
> > On Wed, Feb 10, 2016 at 08:48:12PM +0100, Andreas Gruenbacher wrote:
> >> When a shutdown is requested, shouldn't dlm_controld really release
> >> lockspaces in a similar way as well?
> >
> > You could probably do that if you check that the lockspace is managing no
> > local locks (which would be a pain).  If locks exist you'd not want to do
> > that without a force option at least.
> 
> Is that not what dlm_release_lockspace() with force set to false is
> supposed to do? It's weird that the operation may have to be repeated
> several times before the lockspace finally goes away; that could be
> improved with an additional flag to DLM_USER_REMOVE_LOCKSPACE.

OK, yes, but we've wandered into the weeds here.  dlm_controld isn't
involved in lockspace lifetimes, that's the application/libdlm side.
The question is what behavior the program creating/removing the lockspace
needs (and if the program is for more than just testing.)