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Parallelizing with Apache Spark in Unexpected Ways

Parallelizing with Apache Spark in Unexpected Ways

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Out of the box, Spark provides rich and extensive APIs for performing in memory, large-scale computation across data. Once a system has been built and tuned with Spark Datasets/Dataframes/RDDs, have you ever been left wondering if you could push the limits of Spark even further? In this session, we will cover some of the tips learned while building retail-scale systems at Target to maximize the parallelization that you can achieve from Spark in ways that may not be obvious from current documentation. Specifically, we will cover multithreading the Spark driver with Scala Futures to enable parallel job submission. We will talk about developing custom partitioners to leverage the ability to apply operations across understood chunks of data and what tradeoffs that entails. We will also dive into strategies for parallelizing scripts with Spark that might have nothing to with Spark to support environments where peers work in multiple languages or perhaps a different language/library is just the best thing to get the job done. Come learn how to squeeze every last drop out of your Spark job with strategies for parallelization that go off the beaten path.
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