Apache Hadoop enables a revolution in how organization’s process data, with the freedom and scale Hadoop provides enabling new kinds of applications building new kinds of value and delivering results from big data on shorter timelines than ever before. The shift towards a Hadoop-centric mode of data processing in the enterprise has however posed a challenge: how do we collaborate in the context of the freedom that Hadoop provides us? How do we share data which can be stored and processed in any format the user desires? Furthermore, how do we integrate between different tools and with other systems that make-up data-center as computer?
Check out the article at InfoQ: http://www.infoq.com/articles/HadoopMetadata