On Sep 14, 2017, at 10:30 AM, melanie witt <melwi...@gmail.com> wrote:
> 
> I was thinking, if it's possible to assign more than one resource class to an 
> Ironic node, maybe you could get similar behavior to the old non-exact 
> filters. So if you have an oddball config, you could tag it as multiple 
> resource classes that it's "close enough" to for a match. But I'm not sure 
> whether it's possible for an Ironic node to be tagged with more than one 
> resource class.

On the placement side, having an ironic node with two resource classes such as 
RC1 and RC2, would mean that the ResourceProvider (the ironic node) would have 
two inventory records: one for RC1, and another for RC2. When a request for a 
flavor specifying one of these classes is handled, only the one class’s 
inventory would be consumed. Placement would think that the node still had one 
of the other resource class available, and would include that if another 
request for that class is received, which would then fail as the node is 
already in use.

-- Ed Leafe






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