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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1369508

Title:
  Instance with NUMA topology causes exception in the scheduler

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  This was reported by Michael Turek as he was testing this while the
  patches were still in flight See:
  https://review.openstack.org/#/c/114938/26/nova/virt/hardware.py

  As described on there - the code there makes a bad assumption about
  the format in which it will get the data in the scheduler, which
  results in:

  2014-09-15 10:45:44.906 ERROR oslo.messaging.rpc.dispatcher [req-f29a469e-268d-49bf-abfa-0ccb228d768c admin admin] Exception during message handling: An object of type InstanceNUMACell is required here
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/server.py", line 139, in inner
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     return func(*args, **kwargs)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/scheduler/manager.py", line 175, in select_destinations
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     filter_properties)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 147, in select_destinations
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     filter_properties)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 300, in _schedule
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     chosen_host.obj.consume_from_instance(context, instance_properties)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/scheduler/host_manager.py", line 252, in consume_from_instance
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     self, instance)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/virt/hardware.py", line 978, in get_host_numa_usage_from_instance
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     instance_numa_topology = instance_topology_from_instance(instance)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/virt/hardware.py", line 949, in instance_topology_from_instance
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     cells=cells)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/base.py", line 242, in __init__
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     self[key] = kwargs[key]
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/base.py", line 474, in __setitem__
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     setattr(self, name, value)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/base.py", line 75, in setter
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     field_value = field.coerce(self, name, value)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/fields.py", line 189, in coerce
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     return self._type.coerce(obj, attr, value)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/fields.py", line 388, in coerce
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     obj, '%s[%i]' % (attr, index), element)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/fields.py", line 189, in coerce
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     return self._type.coerce(obj, attr, value)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher   File "/opt/stack/nova/nova/objects/fields.py", line 474, in coerce
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher     self._obj_name)
  2014-09-15 10:45:44.906 TRACE oslo.messaging.rpc.dispatcher ValueError: An object of type InstanceNUMACell is required here

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