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[Joe Cropper <jwcroppe@xxxxxxxxxx>]

Public bug reported:

When scheduling VMs and the retry logic kicks in, the failed compute
exception text is saved to be displayed for triaging purposes in the
conductor/scheduler logs.  When the conductor tries to display the
exception text when the maximum scheduling attempts have been reached,
the exception always shows 'None' for the exception text.

Snippet from scheduler_utils.py...

 msg = (_('Exceeded max scheduling attempts %(max_attempts)d '
'for instance %(instance_uuid)s. '
'Last exception: %(exc)s.')
% {'max_attempts': max_attempts,
'instance_uuid': instance_uuid,
'exc': exc})

That is, 'exc' is erroneously ALWAYS None in this case.

** Affects: nova
     Importance: Undecided
     Assignee: Joe Cropper (jwcroppe)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Joe Cropper (jwcroppe)

** Description changed:

  When scheduling VMs and the retry logic kicks in, the failed compute
  exception text is saved to be displayed for triaging purposes in the
  conductor/scheduler logs.  When the conductor tries to display the
  exception text when the maximum scheduling attempts have been reached,
  the exception always shows 'None' for the exception text.
+ 
+  msg = (_('Exceeded max scheduling attempts %(max_attempts)d '
+ 'for instance %(instance_uuid)s. '
+ 'Last exception: %(exc)s.')
+ % {'max_attempts': max_attempts,
+ 'instance_uuid': instance_uuid,
+ 'exc': exc})
+ 
+ That is, 'exc' is erroneously ALWAYS None in this case.

** Description changed:

  When scheduling VMs and the retry logic kicks in, the failed compute
  exception text is saved to be displayed for triaging purposes in the
  conductor/scheduler logs.  When the conductor tries to display the
  exception text when the maximum scheduling attempts have been reached,
  the exception always shows 'None' for the exception text.
  
-  msg = (_('Exceeded max scheduling attempts %(max_attempts)d '
+ Snippet from scheduler_utils.py...
+ 
+  msg = (_('Exceeded max scheduling attempts %(max_attempts)d '
  'for instance %(instance_uuid)s. '
  'Last exception: %(exc)s.')
  % {'max_attempts': max_attempts,
  'instance_uuid': instance_uuid,
  'exc': exc})
  
  That is, 'exc' is erroneously ALWAYS None in this case.

-- 
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https://bugs.launchpad.net/bugs/1361097

Title:
  Compute exception text never present when max sched attempt reached

Status in OpenStack Compute (Nova):
  New

Bug description:
  When scheduling VMs and the retry logic kicks in, the failed compute
  exception text is saved to be displayed for triaging purposes in the
  conductor/scheduler logs.  When the conductor tries to display the
  exception text when the maximum scheduling attempts have been reached,
  the exception always shows 'None' for the exception text.

  Snippet from scheduler_utils.py...

   msg = (_('Exceeded max scheduling attempts %(max_attempts)d '
  'for instance %(instance_uuid)s. '
  'Last exception: %(exc)s.')
  % {'max_attempts': max_attempts,
  'instance_uuid': instance_uuid,
  'exc': exc})

  That is, 'exc' is erroneously ALWAYS None in this case.

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