Comment 5 for bug 1703013

Reviewed: https://review.openstack.org/483089
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=f6cbcf46361c49dc75c3fca2a265de734bfd2e61
Submitter: Jenkins
Branch: master

commit f6cbcf46361c49dc75c3fca2a265de734bfd2e61
Author: Chaynika Saikia <email address hidden>
Date: Wed Jul 12 16:09:47 2017 -0400

    cinder backup sets incorrect parent_id

    If --incremental flag is used and an incremental backup
    fails, it should update the parent_id of the backup to
    None.

    Also for ceph driver, any backup after the first one
    is an incremental backup automatically. Hence, the
    is_incremental field for cinder backup-show <backup-id>
    is misleading since it is set to False currently.

    The patch correctly updates the parent_id for a
    backup in case the incremental backup is successful.
    If not, then it retains the parent_id as None. This
    will also update the parent_id to None if incremental
    backup fails even when --incremental flag is used.

    Change-Id: I22deff68d9376c2ecc88bd2d9d0e1b445d793123
    Closes-Bug: #1703013