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[Peterlai <1815402@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Bug description:
(1) Keep only one compute node (CN_A) enabled and create instances on CN_A;
(2) After vcpus are fully allocated on CN_A, nova does not allow any instance launched on CN_A;
(3) Enable another compute node (CN_B) and launch an instance (VM_101) on it;
(4) Apply live migration to the instance (VM_101) from CN_B to CN_A successfully; (it means that live migration will not check resources on compute nodes)

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1815402

Title:
  nova lacks resource check on compute nodes when doing live migration

Status in OpenStack Compute (nova):
  New

Bug description:
  Bug description:
  (1) Keep only one compute node (CN_A) enabled and create instances on CN_A;
  (2) After vcpus are fully allocated on CN_A, nova does not allow any instance launched on CN_A;
  (3) Enable another compute node (CN_B) and launch an instance (VM_101) on it;
  (4) Apply live migration to the instance (VM_101) from CN_B to CN_A successfully; (it means that live migration will not check resources on compute nodes)

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