Comment 10 for bug 1709594

Reviewed: https://review.openstack.org/493006
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=904c4a1d9ac25119bb3100a349e19fef8d318527
Submitter: Jenkins
Branch: master

commit 904c4a1d9ac25119bb3100a349e19fef8d318527
Author: Matt Riedemann <email address hidden>
Date: Fri Aug 11 09:05:14 2017 -0400

    doc: add another up-call caveat for cells v2 for xenapi aggregates

    There is an up-call from the xenapi driver when performing a live
    migration and --block-migrate is not specified such that the driver
    checks to see if the source and destination hosts are in the same
    aggregate. This fails in a super-conductor setup because the
    aggregates are now in the API database and the cell conductor
    won't be able to access that database by design.

    Change-Id: I6c880c72d87eb0116cb57371e5d600dced2915f7
    Related-Bug: #1709594