The data & analytics teams at Etsy build up and tear down more than a thousand independent Hadoop clusters on EC2 each month. This talk discusses the benefits of this approach, where Elastic Map Reduce serves as a "meta-cluster" in which on-demand Hadoop clusters can be created, used, and shut down quickly and easily.
Over the past few years, Netflix has migrated to the cloud. This talk details Netflix's transition away from relational databases and towards high-availability (NoSQL) storage systems. We rely on a combination of proprietary (e.g. SimpleDB and S3) and open-source (e.g. Cassandra and HBase) NoSQL technologies.