Comment 9 for bug 1644630

Reviewed: https://review.openstack.org/422166
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=cd2ee13830dbed7405cf5587c0fa30cf1f1f97fd
Submitter: Jenkins
Branch: master

commit cd2ee13830dbed7405cf5587c0fa30cf1f1f97fd
Author: Vladimir Kuklin <email address hidden>
Date: Wed Jan 18 21:46:42 2017 +0300

    Set nodes' statuses to 'error' when their nodegroup is deleted

    According to the bug below and the spec, we did not implement
    one multirack feature aspect.

    https://specs.openstack.org/openstack/fuel-specs/specs/8.0/multi-rack-static.html#notifications-impact

    Now we add resetting node to error to node group deletion callback and
    send a notification.

    Change-Id: I6b2bae5601ba7dbca620bb3861e95b0e554f8699
    Closes-bug: #1644630