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[Bug 1859560] [NEW] nova.objects.block_device.BlockDeviceMappingList.get_by_instance_uuid( context.get_admin_context(), instance_uuid) does not return correct value when called in deploy process.

 

Public bug reported:

1, I am working on a enhancement of openstack compute project.
2, I am using this function "nova.objects.block_device.BlockDeviceMappingList.get_by_instance_uuid(context.get_admin_context(), instance_uuid)" to get all attached volumes connection info while deploy process.
3, sometimes this function return null or 1 or 2 items, while nova database has 5 or 10 items.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1859560

Title:
  nova.objects.block_device.BlockDeviceMappingList.get_by_instance_uuid(
  context.get_admin_context(), instance_uuid) does not return correct
  value when called in deploy process.

Status in OpenStack Compute (nova):
  New

Bug description:
  1, I am working on a enhancement of openstack compute project.
  2, I am using this function "nova.objects.block_device.BlockDeviceMappingList.get_by_instance_uuid(context.get_admin_context(), instance_uuid)" to get all attached volumes connection info while deploy process.
  3, sometimes this function return null or 1 or 2 items, while nova database has 5 or 10 items.

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