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[Alan Pevec <1252437@xxxxxxxxxxxxxxxxxx>]

** Also affects: neutron/havana
   Importance: Undecided
       Status: New

** Changed in: neutron/havana
       Status: New => Fix Committed

** Changed in: neutron/havana
    Milestone: None => 2013.2.2

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https://bugs.launchpad.net/bugs/1252437

Title:
  uncaught portnotfound exception on get_dhcp_port

Status in OpenStack Neutron (virtual network service):
  Fix Released
Status in neutron havana series:
  Fix Committed

Bug description:
  While working on fix for bug #1251874 I have noticed this stacktrace
  in the log:

  2013-11-18 17:20:46.237 1021 ERROR neutron.openstack.common.rpc.amqp [-] Exception during message handling
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp Traceback (most recent call last):
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/openstack/common/rpc/amqp.py", line 438, in _process_data
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     **args)
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/common/rpc.py", line 44, in dispatch
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     neutron_ctxt, version, method, namespace, **kwargs)
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/openstack/common/rpc/dispatcher.py", line 172, in dispatch
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     result = getattr(proxyobj, method)(ctxt, **kwargs)
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/db/dhcp_rpc_base.py", line 139, in get_dhcp_port
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     dict(port=port))
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/plugins/ml2/plugin.py", line 588, in update_port
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     original_port = super(Ml2Plugin, self).get_port(context, id)
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/db/db_base_plugin_v2.py", line 1454, in get_port
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     port = self._get_port(context, id)
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp   File "/opt/stack/new/neutron/neutron/db/db_base_plugin_v2.py", line 266, in _get_port
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp     raise q_exc.PortNotFound(port_id=id)
  2013-11-18 17:20:46.237 1021 TRACE neutron.openstack.common.rpc.amqp PortNotFound: Port d68c27dd-210b-4b10-9c41-40ba01aa0fd3 could not be found

  This is because the try-except looks for exc.NoResultFound and this is
  obviously a mistake.

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