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[Alan Pevec <1316365@xxxxxxxxxxxxxxxxxx>]

** Changed in: neutron/icehouse
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1316365

Title:
  NSX: stacktrace during port creation

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

Bug description:
  When using NSX-DHCP the following stack trace can be caused if a port
  is created with a non-empty device id, on a subnet with disabled dhcp
  services:

  2014-05-05 17:12:22.099 18224 DEBUG neutron.openstack.common.rpc.amqp [req-06840c8e-e091-4627-b221-5faeecd1402f None] Sending port.create.start on notifications.info notify /opt/stack/neutron/neutron/openstack/common/rpc/amqp.py:622
  2014-05-05 17:12:22.099 18224 DEBUG neutron.openstack.common.rpc.amqp [req-06840c8e-e091-4627-b221-5faeecd1402f None] UNIQUE_ID is 64e9e5271fae43a9b5e195ba697eed19. _add_unique_id /opt/stack/neutron/neutron/openstack/common/rpc/amqp.py:342
  2014-05-05 17:12:22.105 18224 DEBUG neutron.api.v2.base [req-06840c8e-e091-4627-b221-5faeecd1402f None] Request body: {u'port': {u'binding:host_id': u'cidevstack', u'admin_state_up': True, u'network_id': u'3e47abe7-610f-4816-9263-25126996c0bd', u't
  enant_id': u'e9f4059f41534834b6edcb9280caa6af', u'device_owner': u'compute:None', u'rxtx_factor': 1.0, u'security_groups': [u'9fdac141-4d02-48d9-b9cf-7d50cdd272e9'], u'device_id': u'ce873c29-ed36-486b-a560-a615685848df'}} prepare_request_body /opt/
  stack/neutron/neutron/api/v2/base.py:561
  2014-05-05 17:12:22.148 18224 DEBUG neutron.db.db_base_plugin_v2 [req-06840c8e-e091-4627-b221-5faeecd1402f None] Generated mac for network 3e47abe7-610f-4816-9263-25126996c0bd is fa:16:3e:f0:cf:9b _generate_mac /opt/stack/neutron/neutron/db/db_base
  _plugin_v2.py:308
  2014-05-05 17:12:22.165 18224 DEBUG neutron.db.db_base_plugin_v2 [req-06840c8e-e091-4627-b221-5faeecd1402f None] Allocated IP - 10.100.0.2 from 10.100.0.2 to 10.100.0.14 _try_generate_ip /opt/stack/neutron/neutron/db/db_base_plugin_v2.py:374
  2014-05-05 17:12:22.166 18224 DEBUG neutron.notifiers.nova [req-06840c8e-e091-4627-b221-5faeecd1402f None] Ignoring state change previous_port_status: symbol('NO_VALUE') current_port_status: DOWN port_id b0449d81-be9d-4e5e-9ead-13681d923fd1 record_
  port_status_changed /opt/stack/neutron/neutron/notifiers/nova.py:199
  2014-05-05 17:12:22.167 18224 DEBUG neutron.db.db_base_plugin_v2 [req-06840c8e-e091-4627-b221-5faeecd1402f None] Allocated IP 10.100.0.2 (3e47abe7-610f-4816-9263-25126996c0bd/f08cf80c-3c1d-4738-b231-9b0adc13973b/b0449d81-be9d-4e5e-9ead-13681d923fd1
  ) create_port /opt/stack/neutron/neutron/db/db_base_plugin_v2.py:1390
  2014-05-05 17:12:22.191 18224 INFO neutron.plugins.vmware.dhcp_meta.nsx [req-06840c8e-e091-4627-b221-5faeecd1402f None] Configuring metadata entry for port {'status': 'DOWN', 'name': '', 'admin_state_up': True, 'network_id': u'3e47abe7-610f-4816-92
  63-25126996c0bd', 'tenant_id': u'e9f4059f41534834b6edcb9280caa6af', 'device_owner': u'compute:None', 'mac_address': 'fa:16:3e:f0:cf:9b', 'fixed_ips': [{'subnet_id': u'f08cf80c-3c1d-4738-b231-9b0adc13973b', 'ip_address': u'10.100.0.2'}], 'id': 'b044
  9d81-be9d-4e5e-9ead-13681d923fd1', 'device_id': u'ce873c29-ed36-486b-a560-a615685848df'}
  2014-05-05 17:12:22.195 18224 ERROR neutron.plugins.vmware.dhcp_meta.lsnmanager [req-06840c8e-e091-4627-b221-5faeecd1402f None] Error while configuring LSN port None
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager Traceback (most recent call last):
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager   File "/opt/stack/neutron/neutron/plugins/vmware/dhcp_meta/lsnmanager.py", line 303, in _lsn_port_host_conf
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager     context, network_id, subnet_id)
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager   File "/opt/stack/neutron/neutron/plugins/vmware/dhcp_meta/lsnmanager.py", line 415, in lsn_port_get
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager     ctxt.reraise = True
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager   File "/opt/stack/neutron/neutron/openstack/common/excutils.py", line 82, in __exit__
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager     six.reraise(self.type_, self.value, self.tb)
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager   File "/opt/stack/neutron/neutron/plugins/vmware/dhcp_meta/lsnmanager.py", line 399, in lsn_port_get
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager     context, subnet_id, raise_on_err=raise_on_err)
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager   File "/opt/stack/neutron/neutron/plugins/vmware/dbexts/lsn_db.py", line 111, in lsn_port_get_for_subnet
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager     entity_id=subnet_id)
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager LsnPortNotFound: Unable to find port for LSN None and subnet f08cf80c-3c1d-4738-b231-9b0adc13973b
  2014-05-05 17:12:22.195 18224 TRACE neutron.plugins.vmware.dhcp_meta.lsnmanager
  2014-05-05 17:12:22.198 18224 ERROR root [-] Original exception being dropped: ['Traceback (most recent call last):\n', '  File "/opt/stack/neutron/neutron/plugins/vmware/dhcp_meta/nsx.py", line 291, in handle_port_metadata_access\n    handler(cont
  ext, network_id, subnet_id, host_data)\n', '  File "/opt/stack/neutron/neutron/plugins/vmware/dhcp_meta/lsnmanager.py", line 324, in lsn_port_meta_host_add\n    lsn_api.lsn_port_metadata_host_add)\n', '  File "/opt/stack/neutron/neutron/plugins/vmw
  are/dhcp_meta/lsnmanager.py", line 309, in _lsn_port_host_conf\n    net_id=network_id, lsn_id=lsn_id, port_id=lsn_port_id)\n', 'PortConfigurationError: An error occurred while connecting LSN None and network 3e47abe7-610f-4816-9263-25126996c0bd via
   port None\n']

  This is because the LSN port has not been set up and the management
  code for setting up metadata does not account of that.

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