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[Michał Jastrzębski <michal.jastrzebski@xxxxxxxxx>]

Public bug reported:

Currently, when we evacuate an instance, evacuation mechanism checks
only if nova-compute is down on failed host. If nova compute fails and
vm's are still alive, we still can perform evacuation, but 2 separate
vms will write to same disk, and that might break data integrity on
disk. There should be better host health monitoring, which will give us
better hint if we can perform safe evacuation.

** Affects: nova
     Importance: Undecided
     Assignee: Michał Jastrzębski (inc007)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Michał Jastrzębski (inc007)

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https://bugs.launchpad.net/bugs/1379292

Title:
  nova evacuate --on-shared-storage doesn't check actual vm state

Status in OpenStack Compute (Nova):
  New

Bug description:
  Currently, when we evacuate an instance, evacuation mechanism checks
  only if nova-compute is down on failed host. If nova compute fails and
  vm's are still alive, we still can perform evacuation, but 2 separate
  vms will write to same disk, and that might break data integrity on
  disk. There should be better host health monitoring, which will give
  us better hint if we can perform safe evacuation.

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