[Openstack-operators] [openstack-dev] [Nova] Reconciling flavors and block device mappings

Andrew Laski andrew at lascii.com
Fri Aug 26 13:30:22 UTC 2016



On Fri, Aug 26, 2016, at 06:31 AM, Chris Dent wrote:
> On Thu, 25 Aug 2016, Andrew Laski wrote:
> 
> > Allow block device mappings, when present, to mostly determine instance
> > packing. By that I mean that the scheduler only takes into account local
> > disk that would be consumed, but we add additional configuration to Nova
> > which limits the number of instance that can be placed on a host. This
> > is a compromise solution but I fear that a single int value does not
> > meet the needs of deployers wishing to limit instances on a host. They
> > want it to take into account cpu allocations and ram and disk, in short
> > a flavor :)
> 
> When you say "add additional configuration" do you mean "add more
> things to nova.conf"? If so, then please don't do that. There is far
> too much of that.

Yes, that's what I mean. I'm not a big fan of this option either for
that reason.

> 
> -- 
> Chris Dent               ┬─┬ノ( º _ ºノ)        https://anticdent.org/
> freenode: cdent                                         tw: @anticdent
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