Open Stack

I just posted this:

https://review.openstack.org/#/c/154907/

as an alternative fix for critical bug:

https://bugs.launchpad.net/nova/+bug/1419785

I've just knocked this up quickly for illustration: it obviously needs
plenty of cleanup. I have confirmed that it works, though.

Before I take it any further, though, I'd like to get some feedback on
the approach. I prefer this to the alternative, because the underlying
problem is deeper than supporting evacuate. I'd prefer to be honest with
the user and just say it ain't gonna work. The alternative would leave
Nova running in a broken state, leaving inconsistent state in its wake
as it runs.

Matt

-- 
Matthew Booth
Red Hat Engineering, Virtualisation Team

Phone: +442070094448 (UK)
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