Comment 4 for bug 1555065

Reviewed: https://review.openstack.org/294513
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=d8e695cb900ad71996e6cf970894bc2e3f2df8b4
Submitter: Jenkins
Branch: master

commit d8e695cb900ad71996e6cf970894bc2e3f2df8b4
Author: Prateek Arora <email address hidden>
Date: Fri Mar 18 06:46:43 2016 -0400

    Delete traces of in-progress snapshot on VM being deleted

    When user tries to create snapshot of instance and at the same time
    if another request tries to delete the instance, at that time image
    goes in saving status for forever because of race between instance
    delete and snapshot requests.

    Caught exceptions(InstanceNotFound and UnexpectedDeletingTaskStateError)
    in except block and deleting the image which got stuck in saving state.

    Closes-Bug: #1555065
    Change-Id: If0b918dc951030e6b6ffba147443225e0e4a370a