Comment 11 for bug 1327218

Reviewed: https://review.openstack.org/164330
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=6fb2ef96d6aaf9ca0ad394fd7621ef1e6003f5a1
Submitter: Jenkins
Branch: master

commit 6fb2ef96d6aaf9ca0ad394fd7621ef1e6003f5a1
Author: Matt Riedemann <email address hidden>
Date: Wed Mar 18 12:42:42 2015 -0700

    Save bdm.connection_info before calling volume_api.attach_volume

    There is a race in attach/detach of a volume where the volume status
    goes to 'in-use' before the bdm.connection_info data is stored in the
    database. Since attach is a cast, the caller can see the volume go to
    'in-use' and immediately try to detach the volume and blow up in the
    compute manager because bdm.connection_info isn't set stored in the
    database.

    This fixes the issue by saving the connection_info immediately before
    calling volume_api.attach_volume (which sets the volume status to
    'in-use').

    Closes-Bug: #1327218

    Change-Id: Ib95c8f7b66aca0c4ac7b92d140cbeb5e85c2717f