We needed a bridge between the real-time tier, where we used Couchbase, and the batch tier, built on Hadoop. For lack of something better, we built our own: Couchdoop – an open-source Hadoop connector for Couchbase. Our presentation will discuss best practices on how to create a Hadoop connector for a NoSQL database. We will talk about the challenges we encountered while developing Couchdoop and share how we tuned it for performance. Together with Bigstep we worked on performance benchmarks for our technology, which show how much throughput that can be squeezed from a Hadoop connector.