Error during running cinder's CreateAndRestoreVolumeBackup scenario

[Michael Dovgal]

During running cinder's CreateAndRestoreVolumeBackup scenario we have a race problem with a backup deleting, because here [0] we are waiting not for backup's 'available' status, but for volume's
and at the moment of deleting the backup is still in 'restoring' status.

[0] - https://github.com/openstack/rally/blob/77cabd1769a3646b33703c0b91edd2b44a6dcf0a/rally/plugins/openstack/scenarios/cinder/utils.py#L372-L378

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/427686

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/427686
Committed: https://git.openstack.org/cgit/openstack/rally/commit/?id=49069952fad9ea0866692194dc372e7db20892b9
Submitter: Jenkins
Branch: master

commit 49069952fad9ea0866692194dc372e7db20892b9
Author: Mykhailo Dovgal <email address hidden>
Date: Wed Feb 1 14:04:01 2017 +0200

    Fix backup create and restore scenario race problem

    During running cinder's CreateAndRestoreVolumeBackup scenario
    we have race problem with backup deleting, because here [0] we
    are waiting not for backup 'available' status, but for volume's
    and at the deleting moment backup is still in 'restoring' status.

    This patch fixes this problem.

    [0] - https://github.com/openstack/rally/blob/77cabd1769a3646b33703c0b91edd2b44a6dcf0a/rally/plugins/openstack/scenarios/cinder/utils.py#L372-L378

    Change-Id: I8ff9c349c5116211af7c47bb3fbeb7489144d26e
    Closes-Bug: #1660965