On Thu, Oct 11, 2012 at 11:43:40AM +1100, Andrew Beekhof wrote:
> On Tue, Sep 25, 2012 at 10:44 PM, Ulrich Windl
> <[email protected]> wrote:
> > Hi!
> >
> > I have a question on pacemaker: Can I have a ordering and location 
> > constraint between a primitive and an instance of a clone instance? I'm 
> > usure whether or how it works.
> >
> > Background: If you have a cluster filesystem that is running on n nodes 
> > (maybe not all of your notes), and you want to run a virtual machine where 
> > a CFS is running and after the CFS is started. Likewise, if an instance of 
> > the clones CFS goes down, the dependent VM on that node should also go down.
> >
> > If my CFS is "cln_cfs_VMs", and my VMs are like "prm_xen_s*", I tried:
> > colocation col_Xen_VMs_cfs inf: ( prm_xen_s01 prm_xen_s02 prm_xen_s03 
> > prm_xen_s04 prm_xen_s05 prm_xen_s06 prm_xen_s07 ) cln_cfs_VMs
> > order ord_cfs_VMs_Xen inf: cln_cfs_VMs ( prm_xen_s01 prm_xen_s02 
> > prm_xen_s03 prm_xen_s04 prm_xen_s05 prm_xen_s06 prm_xen_s07 )
> 
> I've gives up trying to understand the shell syntax for sets... can
> you show me the xml?

The shell just reflects what's in the CIB. There's nothing funky
in the syntax.

> What you describe should be possible, I'm just not sure if you have
> the right syntax.

FWIW, the colocation above looks OK.

Thanks,

Dejan

> > The CFS is OCFS with ist own constraints:
> > order ord_DLM_O2CB inf: cln_DLM cln_O2CB
> > order ord_OCFS_fs inf: cln_O2CB ( cln_cfs_locks1 cln_cfs_VMs )
> >
> > Is this too complex for CRM to handle, or did I simply make a mistake?
> >
> > Regards,
> > Ulrich
> >
> >
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