It is developed by the Raspberry Pi Foundation, and it might be the most versatile tech ever created.
What is the Raspberry Pi? The Raspberry Pi is a small, affordable, and amazingly capable, credit card size computer. With Node.js you can do amazing things with your Raspberry Pi.So, while specifying num-executors, we need to make sure that we leave aside enough cores (~1 core per node) for these. Hadoop/Yarn/OS Deamons: When we run spark application using a cluster manager like Yarn, there’ll be several daemons that’ll run in the background like NameNode, Secondary NameNode, DataNode, JobTracker and TaskTracker.
