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[Bug 1538620] Re: Attach with host and instance_uuid not backwards compatible

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Sean McGinnis <sean_mcginnis@xxxxxxxx>
Date: Thu, 08 Sep 2016 02:06:29 -0000
Reply-to: Bug 1538620 <1538620@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: cinder
       Status: In Progress => Won't Fix

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https://bugs.launchpad.net/bugs/1538620

Title:
  Attach with host and instance_uuid not backwards compatible

Status in Cinder:
  Won't Fix
Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Patch https://review.openstack.org/#/c/266006/ added the ability for
  Cinder to accept both host and instance_uuid when doing an attach.
  This is not backwards compatible to earlier API versions, so when Nova
  calls attach with versions prior to this change with both arguments it
  causes a failure.

  This information is needed for the multiattach work, but we should
  revert that change and try to find a cleaner way to do this that will
  not break backwards compatibility.

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