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Apache Spark 2.x for Java Developers

You're reading from Apache Spark 2.x for Java Developers

Product type Book

Published in Jul 2017

Publisher Packt

ISBN-13 9781787126497

Pages 350 pages

Edition 1st Edition

Languages

Concepts

Authors (2):

Sourav Gulati

Sumit Kumar

View More author details

Table of Contents (19) Chapters

Title Page

Credits

Foreword

About the Authors

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. Introduction to Spark

2. Revisiting Java

3. Let Us Spark

4. Understanding the Spark Programming Model

5. Working with Data and Storage

6. Spark on Cluster

7. Spark Programming Model - Advanced

8. Working with Spark SQL

9. Near Real-Time Processing with Spark Streaming

10. Machine Learning Analytics with Spark MLlib

11. Learning Spark GraphX

Why use Java for Spark?

With the rise in multi-core CPUs, Java could not keep up with the change in its design to utilize that extra power available to its disposal because of the complexity surrounding concurrency and immutability. We will discuss this in detail, later. First let's understand the importance and usability of Java in the Hadoop ecosystem. As MapReduce was gaining popularity, Google introduced a framework called Flume Java that helped in pipelining multiple MapReduce jobs. Flume Java consists of immutable parallel collections capable of performing lazily evaluated optimized chained operations. That might sound eerily similar to what Apache Spark does, but then even before Apache Spark and Java Flume, there was Cascading, which built an abstraction over MapReduce to simplify the way MapReduce tasks are developed, tested, and run. All these frameworks were majorly a Java implementation to simplify MapReduce pipelines among other things.

These abstractions were simple in fact...

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Authors (2)

Sourav Gulati

Sourav Gulati is associated with software industry for more than 7 years. He started his career with Unix/Linux and Java and then moved towards big data and NoSQL World. He has worked on various big data projects. He has recently started a technical blog called Technical Learning as well. Apart from IT world, he loves to read about mythology.

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Sumit Kumar

Sumit Kumar is a developer with industry insights in telecom and banking. At different junctures, he has worked as a Java and SQL developer, but it is shell scripting that he finds both challenging and satisfying at the same time. Currently, he delivers big data projects focused on batch/near-real-time analytics and the distributed indexed querying system. Besides IT, he takes a keen interest in human and ecological issues.

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