Making Hadoop multi-app platform with YARN

At Hadoop Summit 2013, we can expect tonnes of talk on YARN. Timely that Jeff Kelly of Wikibon shares his views on the framework.
YARN is as a true Hadoop resource manager, allowing multiple applications – MapReduce, SQL, streaming analysis, etc. – to run on a single cluster of machines simultaneously while maintaining high performance levels...
This means Hadoop can be used as the foundation of an enterprise data management architecture, storing all of an enterprise’s data and being utilized as a shared data service. With YARN, the marketing team can run SQL-style applications while the Data Science team churns through petabytes of data, all on a single Hadoop deployment.