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[Bug 1430300] [NEW] nova does not allow instances to be paused during live migration

 

Public bug reported:

QEMU/KVM is able to pause instance during live migration. This operation
does not abort live migration process - VM is paused on source host and
after successful live migration VM is back online on destination host
(hypervisor automatically starts VM).

In current approach in nova there is no way to do anything with VM that
is being live migrated, even when the process will take ages (or in the
worst case scenario - will never end). To address this issue nova should
be able to pause instances during live migration operation.

** Affects: nova
     Importance: Undecided
     Assignee: Pawel Koniszewski (pawel-koniszewski)
         Status: New


** Tags: live-migration

** Changed in: nova
     Assignee: (unassigned) => Pawel Koniszewski (pawel-koniszewski)

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https://bugs.launchpad.net/bugs/1430300

Title:
  nova does not allow instances to be paused during live migration

Status in OpenStack Compute (Nova):
  New

Bug description:
  QEMU/KVM is able to pause instance during live migration. This
  operation does not abort live migration process - VM is paused on
  source host and after successful live migration VM is back online on
  destination host (hypervisor automatically starts VM).

  In current approach in nova there is no way to do anything with VM
  that is being live migrated, even when the process will take ages (or
  in the worst case scenario - will never end). To address this issue
  nova should be able to pause instances during live migration
  operation.

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