This book leverages the discipline of data integration and applies it to the Hadoop open-source software framework for storing data on clusters of commodity hardware. It is packed with the need-to-know for managers, architects, designers, and developers responsible for populating Hadoop in the enterprise, allowing you to harness big data and do it in such a way that the solution: Complies with (and even extends) enterprise standards; Integrates seamlessly with the existing information infrastructure; Fills a critical role within enterprise architecture. The book covers the gamut of the setup, architecture and possibilities for Hadoop in the organisation, including: Supporting an enterprise information strategy; Organising for a successful Hadoop rollout; Loading and extracting of data in Hadoop; Managing Hadoop data once it is in the cluster; Utilising Spark, streaming data, and master data in Hadoop processes -- examples are provided to reinforce concepts.