Organizations large and small are adopting Apache Hadoop to deal with huge application datasets, and this comprehensive resource provides you with the key for unlocking the wealth this data holds. Hadoop is ideal for storing and processing massive amounts of data, but until now, information on this open-source project has been lacking - especially with regard to best practices. "Hadoop: The Definitive Guide" demonstrates how to use Hadoop to build reliable, scalable, distributed systems. Programmers will find details for analyzing large datasets with Hadoop, and administrators will learn how to set up and run Hadoop clusters. The book also provides case studies that illustrate how Hadoop solves specific problems.