Comment 52 for bug 1649341

Reviewed: https://review.openstack.org/420051
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=afa458f1bdb3bfa36ce3512abae0b20db8547411
Submitter: Jenkins
Branch: stable/newton

commit afa458f1bdb3bfa36ce3512abae0b20db8547411
Author: Dan Smith <email address hidden>
Date: Mon Dec 12 11:05:28 2016 -0800

    Make simple_cell_setup fully idempotent

    Previously this command would treat the presence of a cell0 mapping
    as indication that cellsv2 is fully setup. This could be a false
    indication for a variety of situations, including having set up a
    cell0 mapping manually, as well as failing to sync the database and
    thus not continuing on to host/instance mapping.

    This patch makes us continue on, even if the mapping is present,
    and also even if the sync of the cell0 database fails.

    Change-Id: Ic05e1a998d7807d58fc35637742059d61f7669e9
    Closes-Bug: #1649341
    (cherry picked from commit 34761e678f286cce2479d320356c9196d67cc4fb)