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On Tue, 2019-11-12 at 05:46 +0000, Zhong, Luyao wrote:
> Hi Nova experts,
> 
> "Not tracking error migrations and orphans in RT." is probably a bug. This may trigger some problems in
> update_available_resources in RT at the moment. That is some orphans or error migrations are using cpus/memory/disk
> etc, but we don't take these usage into consideration. And instance.resources is introduced from Train used to contain
> specific resources, we also track assigned specific resources in RT based on tracked migrations and instances. So this
> bug will also affect the specific resources tracking.
> 
> I draft an doc to clarify this bug and possible solutions: 
> https://etherpad.openstack.org/p/track-err-migr-and-orphans-in-RT
> Looking forward to suggestions from you. Thanks in advance.
> 
there are patche up to allow cleaning up orpahn instances
https://review.opendev.org/#/c/627765/
https://review.opendev.org/#/c/648912/
if we can get those merged that woudl adress at least some of the proablem

> Best Regards,
> Luyao