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Reviewed:  https://review.openstack.org/298997
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=27e869bb88f13d05b94107a769f67ddd6975425d
Submitter: Jenkins
Branch:    master

commit 27e869bb88f13d05b94107a769f67ddd6975425d
Author: Diana Clarke <diana.joan.clarke@xxxxxxxxx>
Date:   Tue Mar 29 17:48:33 2016 -0400

    Fix: unable to delete instance when cinder is down
    
    Ignore any cinder related exceptions that arise when you try to delete
    an instance, so that the delete instance workflow isn't abruptly
    interrupted (skipping necessary clean-up, etc).
    
    In this case, we are intentionally catching all exceptions in addition
    to a specific set of exceptions, so that the instance and related
    resources aren't left in an unmanageable state when an unexpected
    exception occurs. For example, currently you can't delete an instance
    that's attached to a volume when cinder is down.
    
    The existing error messages were also updated to include the block
    device mapping volume id that triggered the exception.
    
    Change-Id: Iba7b4cc4b59f88b0817c4618e7a4429161d6c2a9
    Closes-Bug: #1563547


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1563547

Title:
  Unable to delete instance when cinder is down

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  When an instance is attached to a volume and cinder is down, you are
  unable to delete the instance, and the instance status is ERROR.

  This bug is reproducible on master (currently newton) using devstack.

      1. Create an instance
      2. Create a volume
      3. Attach volume to instance
      4. Bring the cinder api down via screen
      5. Attempt to delete the instance
      6. Note that the instance is not deleted
      7. Note that the instance state is ERROR

  For example:

      http://paste.openstack.org/show/492359/

  This bug was initially reported downstream here:

      https://bugzilla.redhat.com/show_bug.cgi?id=1318883

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