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[Bug 1603942] [NEW] delete instance who had dscp rule will be abnormal

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Public bug reported:

step:
1. create a QOS policy with DSCP rule;
2. create a network with above QOS policy and boot a VM;
3. delete the VM, found abnormal information in neutron-openvswitch-agent.service

e-754e-467a-a584-d4878a472758']) removed
2016-07-18 06:51:56.910 ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-7ebfd48c-f845-47c3-a826-b964c37a5ad8 None None] Error while processing VIF ports
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent Traceback (most recent call last):
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 2035, in rpc_loop
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_info, ovs_restarted)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 147, in wrapper
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     return f(*args, **kwargs)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 1655, in process_network_ports
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_info['removed'])
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 147, in wrapper
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     return f(*args, **kwargs)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 1582, in treat_devices_removed
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self.ext_manager.delete_port(self.context, {'port_id': device})
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/manager.py", line 80, in delete_port
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     extension.obj.delete_port(context, data)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 261, in delete_port
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self._process_reset_port(port)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 282, in _process_reset_port
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self.qos_driver.delete(port)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 98, in delete
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self._handle_rule_delete(port, rule_type)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 113, in _handle_rule_delete
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     handler(port)
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/extension_drivers/qos_driver.py", line 112, in delete_dscp_marking
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_name = port['vif_port'].port_name
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent KeyError: 'vif_port'
2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent

** Affects: neutron
     Importance: Undecided
     Assignee: QunyingRan (ran-qunying)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => QunyingRan (ran-qunying)

** Description changed:

  step:
- 1. create a QOS policy with DSCPrule;
+ 1. create a QOS policy with DSCP rule;
  2. create a network with above QOS policy and boot a VM;
  3. delete the VM, found abnormal information in neutron-openvswitch-agent.service
  
  e-754e-467a-a584-d4878a472758']) removed
  2016-07-18 06:51:56.910 ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-7ebfd48c-f845-47c3-a826-b964c37a5ad8 None None] Error while processing VIF ports
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent Traceback (most recent call last):
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 2035, in rpc_loop
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_info, ovs_restarted)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 147, in wrapper
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     return f(*args, **kwargs)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 1655, in process_network_ports
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_info['removed'])
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 147, in wrapper
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     return f(*args, **kwargs)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 1582, in treat_devices_removed
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self.ext_manager.delete_port(self.context, {'port_id': device})
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/manager.py", line 80, in delete_port
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     extension.obj.delete_port(context, data)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 261, in delete_port
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self._process_reset_port(port)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 282, in _process_reset_port
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self.qos_driver.delete(port)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 98, in delete
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self._handle_rule_delete(port, rule_type)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 113, in _handle_rule_delete
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     handler(port)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/extension_drivers/qos_driver.py", line 112, in delete_dscp_marking
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_name = port['vif_port'].port_name
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent KeyError: 'vif_port'
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent

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https://bugs.launchpad.net/bugs/1603942

Title:
  delete instance who had dscp rule will be abnormal

Status in neutron:
  New

Bug description:
  step:
  1. create a QOS policy with DSCP rule;
  2. create a network with above QOS policy and boot a VM;
  3. delete the VM, found abnormal information in neutron-openvswitch-agent.service

  e-754e-467a-a584-d4878a472758']) removed
  2016-07-18 06:51:56.910 ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-7ebfd48c-f845-47c3-a826-b964c37a5ad8 None None] Error while processing VIF ports
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent Traceback (most recent call last):
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 2035, in rpc_loop
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_info, ovs_restarted)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 147, in wrapper
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     return f(*args, **kwargs)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 1655, in process_network_ports
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_info['removed'])
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 147, in wrapper
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     return f(*args, **kwargs)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py", line 1582, in treat_devices_removed
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self.ext_manager.delete_port(self.context, {'port_id': device})
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/manager.py", line 80, in delete_port
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     extension.obj.delete_port(context, data)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 261, in delete_port
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self._process_reset_port(port)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 282, in _process_reset_port
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self.qos_driver.delete(port)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 98, in delete
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     self._handle_rule_delete(port, rule_type)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/agent/l2/extensions/qos.py", line 113, in _handle_rule_delete
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     handler(port)
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/extension_drivers/qos_driver.py", line 112, in delete_dscp_marking
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent     port_name = port['vif_port'].port_name
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent KeyError: 'vif_port'
  2016-07-18 06:51:56.910 TRACE neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent

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