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On Jul 12, 2016, at 2:43 AM, Cheng, Yingxin <yingxin.cheng at intel.com> wrote:

> 4. Capabilities are managed/grouped/abstracted by namespaces, and scheduler can make decisions based on either cap_names or cap_namespaces
> 5. Placement service DON’T have any specific knowledge of a capability, it only know the its name, namespaces, its relationship to resource providers. They are used for scheduling, capability management and report.

Thinking about that a bit, it would seem that a host aggregate could also be represented as a namespace:name tag. That makes sense, since the fact that a host belongs to a particular aggregate is a qualitative aspect of that host.


-- Ed Leafe