Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/17479

Log:
commit 3a6d6d2f600a407fd4fbf8aae144ee836844c525
Author: Édouard Thuleau <edouard.thuleau at orange.com>
Date:   Tue Dec 4 17:06:23 2012 +0100

    Periodic update of DNS entries.
    
    The new DNS mechanism to resolve instance names on private network with
    multi hosted mode doesn't scale.
    This patch add the possibility to update the DNS entries periodically on
    each network host in addition to fanout cast each time the DNS entries
    need to be updated.
    
    DocImpact: new config options
    Fixes LP bug #1086026
    
    Change-Id: I59094a29c9f5010f5e55a6f11160263337b058b2