Dynamically loading JAR file in Zeppelin

July 14, 2018July 14, 2018 ~ afish ~ Leave a comment

Imagine that you need to load JAR file dynamically in Zeppelin working on your EMR cluster. One easy way is to deploy the file to the instance and load it from there, however, what can you do if you have almost no access to the cluster and the filesystem? You can load the JAR from … Continue reading Dynamically loading JAR file in Zeppelin

Generating class in Zeppelin

July 7, 2018May 2, 2018 ~ afish ~ Leave a comment

If you want to declare a class in Zeppelin and create instance of it, you might be surprised: What happened? Whatever you declare in Zeppelin notebook is a part of some internal class so the newly declared class K doesn’t have parameterless constructor because it expects the instance of enclosing type. There are two simple … Continue reading Generating class in Zeppelin