Comment 6 for bug 1398128

Reviewed: https://review.openstack.org/138164
Committed: https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=ab0a04735f8b54783d6bb2614ac5f2e22e6836bf
Submitter: Jenkins
Branch: stable/juno

commit ab0a04735f8b54783d6bb2614ac5f2e22e6836bf
Author: Adam Gandelman <email address hidden>
Date: Mon Dec 1 11:24:37 2014 -0800

    Wait for hypervisor-stats to reflect ironic nodes

    When enrolling nodes into Ironic, poll nova's hypervisor-stats until
    the hypervisor count reflects the number of enrolled nodes. This
    eliminates a race where devstack completes and an instance is spawned
    before the first post-enrollment periodic task ticks on the Nova side,
    which has recently started popping up in the gate.

    Conflicts:
     lib/ironic

    Change-Id: Ib3d8005e0094ee8af2d5fcb65aca6cd92736da90
    Closes-bug: #1398128
    (cherry picked from commit c78e4671098f08c2eaf0b033777d3c01082141cd)