Comment 5 for bug 1329953

Reviewed: https://review.openstack.org/102486
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=ead25e2eb43140c0a12f2cddf7ee0dbbc422550c
Submitter: Jenkins
Branch: master

commit ead25e2eb43140c0a12f2cddf7ee0dbbc422550c
Author: Sergii Golovatiuk <email address hidden>
Date: Wed Jun 25 10:14:59 2014 +0000

    Fix live migration for File/Volume based Instances

    - Open libvirt ports for migration http://wiki.libvirt.org/page/FAQ
    - Add python-novaclient for compute nodes to provide nova CLI
    - Change libvirt_disk_cachemodes to"file=directsync","block=none".

    This allows live block migration, as DirectSync mode is like writethrough, but it bypasses the host page cache.

    Closes-Bug: 1329953
    Change-Id: Ie7cee823fac70f9c2dd46c04f8651cec6bddccc4