Beyond Batch – Moving Hadoop to Multi App with Apache YARN

Over at the Hortonworks Blog, Arun Murthy writes that Apache Hadoop NextGen MapReduce (YARN) provides the highly-sought-after ability to run SQL in Hadoop.

When we set out to build Hadoop 2.0, we wanted to fundamentally re-architect Hadoop to be able to run multiple applications against relevant data sets. And do so in a way where multiple types of applications can operate efficiently and predictably within the same cluster – this is really the reason behind Apache YARN, which is foundational to Hadoop 2.0. By managing the resource requests across a cluster, YARN turns Hadoop from a single application system to a multi-application operating system.

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