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[Launchpad Bug Tracker <1527092@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1527092

Title:
  wrap_exception missed param info

Status in OpenStack Compute (nova):
  Expired

Bug description:
  in nova/compute/manager.py, wrap_exception is to sent a notification
  including the function's param info when the function raised any
  exception, such as _post_live_migration as below.

      @wrap_exception()
      @wrap_instance_fault
      def _post_live_migration(self, ctxt, instance,
                              dest, block_migration=False, migrate_data=None):

  
  However, in some case, the payload of the notification whose event type is the fucntion's name may miss the function's param info.
  You can reproduce it by make nova/compute/manager.py:_post_live_migration raise excepiton anyway.

  nova/exception.py:wrap_exception(notifier=None, get_notifier=None)
                      
                          payload.update({'args': cleansed})        >>>>>>> the args info may miss some param info

                          # If f has multiple decorators, they must use
                          # functools.wraps to ensure the name is
                          # propagated.
                          event_type = f.__name__

                          (notifier or get_notifier()).error(context,
                                                             event_type,
                                                             payload)

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