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[Bug 1475356] Re: Serializer reports wrong supported version

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Matt Riedemann <mriedem@xxxxxxxxxx>
Date: Fri, 24 Jul 2015 18:51:05 -0000
Reply-to: Bug 1475356 <1475356@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Also affects: nova
   Importance: Undecided
       Status: New

** Also affects: nova/kilo
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1475356

Title:
  Serializer reports wrong supported version

Status in OpenStack Compute (nova):
  New
Status in OpenStack Compute (nova) kilo series:
  New
Status in oslo.versionedobjects:
  Fix Released

Bug description:
  The VersionedObjectSerializer is what calls object_backport in our
  indirection_api if we encounter an unsupported version. In order for
  this to work properly, we need to report the top-level object version
  that we're trying to deserialize, not the one we actually encountered.
  We depend on the conductor's object relationship mappings to guide us
  to a fully-supported object tree.

  Currently, the serializer is reporting the object that failed to
  deserialize, not the top.

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