delete instance who had dscp rule will be abnormal

[QunyingRan]

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

[Brandon Logan (brandon-logan)]

could you be specific in the description about what is abnormal?

[David Shaughnessy (david-shaughnessy)]

This bug is a duplicate:
https://bugs.launchpad.net/neutron/+bug/1603443

The problem is port information is being deleted before it reaches the delete_dscp_marking function.

[QunyingRan (ran-qunying)]

ok,thank you