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["yanheven@xxxxxxxxx" <yanheven@xxxxxxxxx>]

Public bug reported:

attribute "host" in ComputeNode was defined as nullable, codes are here
https://github.com/openstack/nova/blob/master/nova/db/sqlalchemy/models.py#L122

but some where get this attribute use "hpy.host",
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L92
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L104
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L118
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L133
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L154
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L86
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L99
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L114
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L130
https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L152

if "host" attribute of a compute node is null, will raise exception as follow:
2015-03-24 01:17:37.890 8541 TRACE nova.api.openstack AttributeError: 'dict' object has no attribute 'host'

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1438020

Title:
  replace "hpy.host" with "hyp.get('host')" to avoid "AttributeError:
  'dict' object has no attribute 'host'"

Status in OpenStack Compute (Nova):
  New

Bug description:
  attribute "host" in ComputeNode was defined as nullable, codes are
  here
  https://github.com/openstack/nova/blob/master/nova/db/sqlalchemy/models.py#L122

  but some where get this attribute use "hpy.host",
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L92
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L104
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L118
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L133
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/contrib/hypervisors.py#L154
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L86
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L99
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L114
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L130
  https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/plugins/v3/hypervisors.py#L152

  if "host" attribute of a compute node is null, will raise exception as follow:
  2015-03-24 01:17:37.890 8541 TRACE nova.api.openstack AttributeError: 'dict' object has no attribute 'host'

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