[openstack-dev] [nova] How to debug no valid host failures with placement

Chris Friesen chris.friesen at windriver.com
Thu Aug 2 14:27:09 UTC 2018


On 08/01/2018 11:34 PM, Joshua Harlow wrote:

> And I would be able to say request the explanation for a given request id
> (historical even) so that analysis could be done post-change and pre-change (say
> I update the algorithm for selection) so that the effects of alternations to
> said decisions could be determined.

This would require storing a snapshot of all resources prior to processing every 
request...seems like that could add overhead and increase storage consumption.

Chris



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