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[shunya kitada <skitada@xxxxxxxxxxxxx>]

This is not a bug.

** Changed in: neutron
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1695179

Title:
  neutron net-list command is failed: AttributeError: 'module' object
  has no attribute '_get_unique_keys'

Status in neutron:
  Invalid

Bug description:
  neutron net-list command is failed: AttributeError: 'module' object
  has no attribute '_get_unique_keys'

  I found an error by "neutorn net-list command" in stable/newton.
  following below.

  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     return f(*dup_args, **dup_kwargs)
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource   File "/opt/neutron/lib/python2.7/site-packages/neutron/plugins/ml2/plugin.py", line 854, in get_networks
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     limit, marker, page_reverse)
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource   File "/opt/neutron/lib/python2.7/site-packages/neutron/db/api.py", line 159, in wrapped
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     return method(*args, **kwargs)
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource   File "/opt/neutron/lib/python2.7/site-packages/neutron/db/db_base_plugin_v2.py", line 446, in get_networks
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     page_reverse=page_reverse)
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource   File "/opt/neutron/lib/python2.7/site-packages/neutron/db/common_db_mixin.py", line 330, in _get_collection
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     page_reverse=page_reverse)
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource   File "/opt/neutron/lib/python2.7/site-packages/neutron/db/common_db_mixin.py", line 296, in _get_collection_query
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     for k in self._unique_keys(model, marker_obj):
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource   File "/opt/neutron/lib/python2.7/site-packages/neutron/db/common_db_mixin.py", line 310, in _unique_keys
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource     uk_sets = sa_utils._get_unique_keys(model)
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource AttributeError: 'module' object has no attribute '_get_unique_keys'
  2017-06-02 14:06:05.676 9070 ERROR neutron.api.v2.resource

  
  This error caused by following code.
  https://github.com/openstack/neutron/blob/9.4.0/neutron/db/common_db_mixin.py#L310

  This call oslo_db.sqalchemy.utils._get_unique_keys function.
  However, "_get_unique_keys" function is not found.
  But, I found "get_unique_keys" function.
  https://github.com/openstack/oslo.db/blob/4.22.0/oslo_db/sqlalchemy/utils.py#L72

  So, I think it should call "get_unique_keys" function.
  <       uk_sets = sa_utils._get_unique_keys(model)
  >       uk_sets = sa_utils.get_unique_keys(model)

  This bug is fixed in pika and ocata.
  https://github.com/openstack/neutron/blob/11.0.0.0b1/neutron/db/common_db_mixin.py#L222
  https://github.com/openstack/neutron/blob/10.0.2/neutron/db/common_db_mixin.py#L255

  But, This is not fixed in newton.
  https://github.com/openstack/neutron/blob/9.4.0/neutron/db/common_db_mixin.py#L310

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