Book Image

Apache Spark 2.x Cookbook

By : Rishi Yadav
Book Image

Apache Spark 2.x Cookbook

By: Rishi Yadav

Overview of this book

While Apache Spark 1.x gained a lot of traction and adoption in the early years, Spark 2.x delivers notable improvements in the areas of API, schema awareness, Performance, Structured Streaming, and simplifying building blocks to build better, faster, smarter, and more accessible big data applications. This book uncovers all these features in the form of structured recipes to analyze and mature large and complex sets of data. Starting with installing and configuring Apache Spark with various cluster managers, you will learn to set up development environments. Further on, you will be introduced to working with RDDs, DataFrames and Datasets to operate on schema aware data, and real-time streaming with various sources such as Twitter Stream and Apache Kafka. You will also work through recipes on machine learning, including supervised learning, unsupervised learning & recommendation engines in Spark. Last but not least, the final few chapters delve deeper into the concepts of graph processing using GraphX, securing your implementations, cluster optimization, and troubleshooting.
Table of Contents (19 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Developing a Spark applications in Eclipse with Maven


Maven as a build tool has become the de-facto standard over the years. It's not surprising if we look a little deeper into what Maven brings. Maven has two primary features and they are:

  • Convention over configuration: Tools built prior to Maven gave developers the freedom to choose where to put source files, test files, compiled files, and so on. Maven takes away this freedom. Because of this, all the confusion about locations also disappears. In Maven, there is a specific directory structure for everything. The following table shows a few of the most common locations:

/src/main/scala

Source code in Scala

/src/main/java

Source code in Java

/src/main/resources

Resources to be used by the source code, such as configuration files

/src/test/scala

Test code in Scala

/src/test/java

Test code in Java

/src/test/resources

Resources to be used by the test code, such as configuration files

  • Declarative dependency management: In Maven, every library is defined...