Comment 2 for bug 1632513

Reviewed: https://review.openstack.org/385200
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=21961e7bc5c9c9650597a9ed7f15a913fcab09d9
Submitter: Jenkins
Branch: master

commit 21961e7bc5c9c9650597a9ed7f15a913fcab09d9
Author: Ken'ichi Ohmichi <email address hidden>
Date: Tue Oct 11 16:27:10 2016 -0700

    Add InvalidInput handling for attach-volume

    If attaching the already attached volume to a server, Cinder returns
    HTTP400 response to Nova but Nova didn't except the response.
    Then Nova returned HTTP500 response to a client.
    Tempest test I594566704b9794457d224031802d9cbf132e765f reproduces
    this error case.

    Closes-Bug: #1632513
    Change-Id: I6718883cb6b42d9b816e3799324a166cbfe92b40