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[Bug 1522008] Re: Nova delete instance fails if cleaning is not async

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Sean Dague <sean@xxxxxxxxx>
Date: Thu, 11 Feb 2016 17:48:57 -0000
Reply-to: Bug 1522008 <1522008@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

It is not clear that this is a nova issue, but a wholely ironic issue.

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1522008

Title:
  Nova delete instance fails if cleaning is not async

Status in Ironic:
  In Progress
Status in OpenStack Compute (nova):
  Invalid

Bug description:
  When node cleaning is not async (conductor starts cleaning immediately
  in do_node_tear_down()) Nova delete instance fails. Nova tries to
  update Ironic port (remove vif id), but conductor releases a lock only
  after thread with cleaning completed. Because cleaning usually is not
  a short time action Nova fails after retries. This bug can affects any
  out-of-tree driver, reproduced on Ansible deploy driver PoC (
  https://review.openstack.org/#/c/238183/ ).

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