11: Spark on Zeppelin – Dataframe groupBy, collect_list, explode & window

Pre-requisite: Docker is installed on your machine for Mac OS X (E.g. $ brew cask install docker) or Windows 10. Docker interview Q&As. This extends setting up Apache Zeppelin Notebook. Step 1: Pull this from the docker hub, and build…

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800+ Java & Big Data Interview Q&As