Rackspace’s Enterprise Business Intelligence group (EBI) was looking for a cost-effective way to support the reporting and information needs of its internal users, which include business and operations personnel. It was also looking to scale out new infrastructure in order to meet their increasing business demands, house increasing amounts of data, and customize the collection of data, while seeking a way to move away from their legacy Data Warehouse solution. To do this, Rackspace built the Analytical Compute Grid (ACG) by using Hadoop, Cassandra and PostgreSQL with an OpenStack cloud. Read more about it in this presentation.