On Fri, Oct 07, 2016 at 08:38:00PM +0100, 'Viktor Bachraty' via ganeti-devel 
> Migration is supported on KVM/Xen hypervisors only. Finalize methods are
> called in both success or suspected failure (the master node can't
> certainly know about failures - e.g. in case of timeouts). Thus these
> functions need to be as robust as possible in order to be able to
> recover from failures - in case success=False the functions should be
> conservative, trying to detect the actual state and idempotent.

LGTM, thanks. This should make Xen migrates a lot more robust.

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