In this talk, Josh outlines some of the ways in which Nokia is using Apache Hadoop. He starts by having a quick look at the practical side of getting started with Hadoop by outlining cluster hardware, configuration, and management with tools like Puppet. Next he dives head first into how Hadoop and its ecosystem are being utilized on a daily basis to perform business analytics, drive machine learning and help build data-driven products. He also touches on how we go about collecting metrics from dozens of applications distributed in multiple data centers around the world. An open Q&A session occupies the last half of the video.