When the port channel name is incorrectly specified (portchannel:# instead of port-channel:#), traceback is continuously logged in screen-q-svc.log until the VM is deleted.
Reason: Syntax error while parsing 'show running-config interface portchannel 1'
###########################################
Snippet of local.conf:
[ml2_mech_cisco_nexus:172.20.231.5]
qa4 = portchannel:1 <<<<<INCORRECT
qa5 = portchannel:2 <<<<<INCORRECT
physnet = physnet1
ssh_port = 22
username = admin
password = CTO1234!
nve_src_intf = 2
2015-02-20 09:41:31.820 DEBUG neutron.plugins.ml2.drivers.cisco.nexus.nexus_network_driver [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] NexusDriver config:
<config xmlns:xc="urn:ietf:params:xml:ns:netconf:base:1.0">
<configure>
<__XML__MODE__exec_configure>
<vlan>
<vlan-id-create-delete>
<__XML__PARAM_value>300</__XML__PARAM_value>
<__XML__MODE_vlan>
<no>
<shutdown/>
</no>
</__XML__MODE_vlan>
</vlan-id-create-delete>
</vlan>
</__XML__MODE__exec_configure>
</configure>
</config>
from (pid=24174) _edit_config /opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py:97
2015-02-20 09:41:31.935 DEBUG neutron.plugins.ml2.drivers.cisco.nexus.nexus_network_driver [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] NexusDriver created VLAN: 300 from (pid=24174) create_and_trunk_vlan /opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py:323
2015-02-20 09:41:32.164 DEBUG neutron.openstack.common.lockutils [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] Releasing semaphore "cisco-nexus-portlock" from (pid=24174) lock /opt/stack/neutron/neutron/openstack/common/lockutils.py:238
2015-02-20 09:41:32.165 DEBUG neutron.openstack.common.lockutils [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] Semaphore / lock released "update_port_postcommit" from (pid=24174) inner /opt/stack/neutron/neutron/openstack/common/lockutils.py:275
2015-02-20 09:41:32.166 ERROR neutron.plugins.ml2.managers [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] Mechanism driver 'cisco_nexus' failed in update_port_postcommit
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers Traceback (most recent call last):
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 299, in _call_on_drivers
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers getattr(driver.obj, method_name)(context)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/openstack/common/lockutils.py", line 272, in inner
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers return f(*args, **kwargs)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/mech_cisco_nexus.py", line 622, in update_port_postcommit
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers self._configure_host_entries, vni)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/mech_cisco_nexus.py", line 531, in _port_action_vlan
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers func(vlan_id, device_id, host_id, vni, is_provider)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/mech_cisco_nexus.py", line 385, in _configure_host_entries
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers vni)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/mech_cisco_nexus.py", line 336, in _configure_port_binding
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers vni)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py", line 326, in create_and_trunk_vlan
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers nexus_port)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py", line 287, in enable_vlan_on_trunk_int
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers intf_type, interface)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py", line 179, in get_interface_switch_trunk_allowed
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers response = self._get_config(nexus_host, confstr)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers File "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus/nexus_network_driver.py", line 72, in _get_config
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers exc=e)
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers NexusConfigFailed: Failed to configure Nexus switch: 172.20.231.5 XML:
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers <cmd>show running-config interface portchannel 1</cmd>
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers . Reason: Syntax error while parsing 'show running-config interface portchannel 1'
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers .
2015-02-20 09:41:32.166 TRACE neutron.plugins.ml2.managers
2015-02-20 09:41:32.171 ERROR oslo.messaging.rpc.dispatcher [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] Exception during message handling: update_port_postcommit failed.
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher incoming.message))
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher return self._do_dispatch(endpoint, method, ctxt, args)
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher result = getattr(endpoint, method)(ctxt, **new_args)
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/opt/stack/neutron/neutron/plugins/ml2/rpc.py", line 161, in update_device_up
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher host)
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/opt/stack/neutron/neutron/plugins/ml2/plugin.py", line 1196, in update_port_status
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher self.mechanism_manager.update_port_postcommit(mech_context)
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 535, in update_port_postcommit
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher continue_on_failure=True)
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 310, in _call_on_drivers
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher method=method_name
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher MechanismDriverError: update_port_postcommit failed.
2015-02-20 09:41:32.171 TRACE oslo.messaging.rpc.dispatcher
2015-02-20 09:41:32.173 ERROR oslo.messaging._drivers.common [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] Returning exception update_port_postcommit failed. to caller
2015-02-20 09:41:32.173 ERROR oslo.messaging._drivers.common [req-427a8130-7d79-4a1e-a7b5-cdf41f6a8652 None None] ['Traceback (most recent call last):\n', ' File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply\n incoming.message))\n', ' File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch\n return self._do_dispatch(endpoint, method, ctxt, args)\n', ' File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch\n result = getattr(endpoint, method)(ctxt, **new_args)\n', ' File "/opt/stack/neutron/neutron/plugins/ml2/rpc.py", line 161, in update_device_up\n host)\n', ' File "/opt/stack/neutron/neutron/plugins/ml2/plugin.py", line 1196, in update_port_status\n self.mechanism_manager.update_port_postcommit(mech_context)\n', ' File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 535, in update_port_postcommit\n continue_on_failure=True)\n', ' File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 310, in _call_on_drivers\n method=method_name\n', 'MechanismDriverError: update_port_postcommit failed.\n']
