Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/21070

Log:
commit ea9778133dbeb86fa542feac5d6b110a13a40e0f
Author: Gary Kotton <gkotton at redhat.com>
Date:   Sun Feb 3 11:01:44 2013 +0000

    Support for scheduler hints for VM groups
    
    This is part of the blueprint vm-ensembles. The patch introduces the
    group as a scheduler hint.
    
    The patch set adds group support for multi-VM deployment. This is achieved
    as follows:
    1. A new hint is added: group. This will contain the name and type for the
       group. At the moment only anti-affinity is supported. In the future
       we will add network proximity. It will be extended to <name>:<type>
    2. In order to ensure that group policy will be honored for future VM
       deployments, the group is stored as system_metadata.
    3. The anti affinity is implemented by a new filter called
       GroupAntiAffinityFilter.
    
    DocImpact
    
    Change-Id: I6ea2af5770b5ac4ff082b2a021d323ee38282205