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Reviewed:  https://review.openstack.org/390381
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=f98e4aa5b70312cb75d5db92e9ab862ffcab1ca3
Submitter: Jenkins
Branch:    master

commit f98e4aa5b70312cb75d5db92e9ab862ffcab1ca3
Author: Diana Clarke <diana.joan.clarke@xxxxxxxxx>
Date:   Mon Oct 24 13:23:14 2016 -0400

    Fix exception raised in exception wrapper
    
    In some cases the exception wrapper can't find the module name for a
    traceback (like lxml c extensions), resulting in an exception from
    inspect.getmodule(). Just set the module name to 'unknown' in these
    cases.
    
    Change-Id: Id5e181d682598eab6987ad6f0f194c77e061f69c
    Closes-Bug: #1635467


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1635467

Title:
  _emit_versioned_exception_notification fails with AttributeError:
  'NoneType' object has no attribute '__name__'

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Seen here:

  http://logs.openstack.org/99/389399/1/check/gate-tempest-dsvm-full-
  devstack-plugin-ceph-ubuntu-
  xenial/9ef7a1b/logs/screen-n-cpu.txt.gz?level=TRACE#_2016-10-21_00_55_46_872

  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server [req-a08665db-81d9-4114-9523-d7bf54576c3c tempest-ServerRescueNegativeTestJSON-1537801177 tempest-ServerRescueNegativeTestJSON-1537801177] Exception during message handling
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 155, in _process_incoming
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 225, in dispatch
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _do_dispatch
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/exception_wrapper.py", line 75, in wrapped
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     function_name, call_dict, binary)
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/exception_wrapper.py", line 32, in _emit_exception_notification
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     _emit_versioned_exception_notification(context, ex, binary)
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/exception_wrapper.py", line 36, in _emit_versioned_exception_notification
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     versioned_exception_payload = exception.ExceptionPayload.from_exception(ex)
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/notifications/objects/exception.py", line 40, in from_exception
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server     module_name=inspect.getmodule(trace[0]).__name__,
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server AttributeError: 'NoneType' object has no attribute '__name__'
  2016-10-21 00:55:46.872 27346 ERROR oslo_messaging.rpc.server

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