[openstack-dev] [nova] NUMA-aware live migration: easy but incomplete vs complete but hard

Artom Lifshitz alifshit at redhat.com
Mon Jun 18 17:51:25 UTC 2018


> For what it's worth, I think the previous patch languished for a number of
> reasons other than the complexity of the code...the original author left,
> the coding style was a bit odd, there was an attempt to make it work even if
> the source was an earlier version, etc.  I think a fresh implementation
> would be less complicated to review.

I'm afraid of unknowns in the resource tracker and claims mechanism.
For snips and giggles, I submitted a quick patch that attempts to use
a  claim [1] when live migrating instances. Assuming it somehow passes
CI, I have no idea if I've just opened rabbit hole of people telling
me "oh but you need to do this other thing in this other place." How
knows the claims code well, anyways?

[1] https://review.openstack.org/576222



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