Apache Hadoop Marries OpenStack Sahara
OpenStack Sahara for Hadoop: Why and How | Stratoscale http://ow.ly/XyQZd
This is a great article to use for reference from Statoscale.
It explains how Sahara is used to create Hadoop Clusters on OpenStack.
Sahara is a OpenStack project (formally known as Savanna) with its main purpose to simplify installing Hadoop,Spark and Storm clusters.Sahara can install and mange several clusters at the same time, add new and remove old nodes from the cluster.