[Bug 1384109] Re: Mechanism driver 'l2population' failed in update_port_postcommit

[James Page]

** Changed in: neutron (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1384109

Title:
  Mechanism driver 'l2population' failed in update_port_postcommit

Status in neutron:
  Incomplete
Status in neutron package in Ubuntu:
  Incomplete

Bug description:
  OpenStack Juno, Ubuntu 14.04, 3 x neutron-server's with 32 API workers
  each, rally/boot-and-delete with a concurrency level of 150:

  2014-10-21 16:37:04.615 16312 ERROR neutron.plugins.ml2.managers [req-c4cdefd5-b2d9-46fa-a031-bddd03d981e6 None] Mechanism driver 'l2population' failed in update_port_postcommit
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers Traceback (most recent call last):
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 291, in _call_on_drivers
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers     getattr(driver.obj, method_name)(context)
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py", line 135, in update_port_postcommit
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers     self._update_port_up(context)
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py", line 228, in _update_port_up
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers     agent_ports += self._get_port_fdb_entries(binding.port)
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/l2pop/mech_driver.py", line 45, in _get_port_fdb_entries
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers     ip['ip_address']] for ip in port['fixed_ips']]
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers TypeError: 'NoneType' object has no attribute '__getitem__'
  2014-10-21 16:37:04.615 16312 TRACE neutron.plugins.ml2.managers
  2014-10-21 16:37:04.618 16312 ERROR oslo.messaging.rpc.dispatcher [req-c4cdefd5-b2d9-46fa-a031-bddd03d981e6 ] Exception during message handling: update_port_postcommit failed.
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/rpc.py", line 161, in update_device_up
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     host)
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/plugin.py", line 1136, in update_port_status
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     self.mechanism_manager.update_port_postcommit(mech_context)
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 527, in update_port_postcommit
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     continue_on_failure=True)
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 302, in _call_on_drivers
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher     method=method_name
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher MechanismDriverError: update_port_postcommit failed.
  2014-10-21 16:37:04.618 16312 TRACE oslo.messaging.rpc.dispatcher
  2014-10-21 16:37:04.620 16312 ERROR oslo.messaging._drivers.common [req-c4cdefd5-b2d9-46fa-a031-bddd03d981e6 ] Returning exception update_port_postcommit failed. to caller
  2014-10-21 16:37:04.621 16312 ERROR oslo.messaging._drivers.common [req-c4cdefd5-b2d9-46fa-a031-bddd03d981e6 ] ['Traceback (most recent call last):\n', '  File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply\n    incoming.message))\n', '  File "/usr/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/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 "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/rpc.py", line 161, in update_device_up\n    host)\n', '  File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/plugin.py", line 1136, in update_port_status\n    self.mechanism_manager.update_port_postcommit(mech_context)\n', '  File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 527, in update_port_postcommit\n    continue_on_failure=True)\n', '  File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 302, in _call_on_drivers\n    method=method_name\n', 'MechanismDriverError: update_port_postcommit failed.\n']

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