This talk assumes you have a basic understanding of Spark and takes us beyond the standard intro to explore what makes PySpark fast and how to best scale our PySpark jobs. If you are using Python and Spark together and want to get faster jobs – this is the talk for you. This talk covers a number of important topics for making scalable Apache Spark programs – from RDD re-use to considerations for working with Key/Value data, why avoiding groupByKey is important and more. We also include Python specific considerations, like the difference between DataFrames/Datasets and traditional RDDs with Python. We also explore some tricks to intermix Python and JVM code for cases where the performance overhead is too high.
Holden Karau is a software development engineer and is active in open source. She’s the co-author of “Learning Spark” and other Spark books and has taught Spark workshops. Prior to IBM, she worked on a variety of big data, search, and classification problems at Alpine, DataBricks, Google, Foursquare, and Amazon. She graduated from the University of Waterloo with a Bachelors of Mathematics in Computer Science.