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[Bug 1164577] Re: old_* instance type info may not exist in system metadata

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Mon, 08 Apr 2013 09:15:55 -0000
Reply-to: Bug 1164577 <1164577@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

*** This bug is a duplicate of bug 1160489 ***
    https://bugs.launchpad.net/bugs/1160489

** This bug has been marked a duplicate of bug 1160489
   periodically seeing KeyError: 'old_instance_type_memory_mb' in compute.log

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https://bugs.launchpad.net/bugs/1164577

Title:
  old_* instance type info may not exist in system metadata

Status in OpenStack Compute (Nova):
  Fix Committed

Bug description:
  During a migration(resize) instance type info with a new_ prefix is
  always created, and usually info with an old_ prefix.  But in the case
  of a migration without resize there will be no old_ prefixed version.
  During confirm_resize an attempt is made to delete the old_ prefixed
  data which raises an exception putting the instance into an ERROR
  state.

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