Summary
The Spark distributed data processing platform provides an easy-to-implement tool for ingesting, streaming, and processing data from any source. In Spark in Action, Second Edition, you’ll learn to take advantage of Spark’s core features and incredible processing speed, with applications including real-time computation, delayed evaluation, and machine learning. Spark skills are a hot commodity in enterprises worldwide, and with Spark’s powerful and flexible Java APIs, you can reap all the benefits without first learning Scala or Hadoop.

Foreword by Rob Thomas.

About the technology
Analyzing enterprise data starts by reading, filtering, and merging files and streams from many sources. The Spark data processing engine handles this varied volume like a champ, delivering speeds 100 times faster than Hadoop systems. Thanks to SQL support, an intuitive interface, and a straightforward multilanguage API, you can use Spark without learning a complex new ecosystem.

About the book
Spark in Action, Second Edition, teaches you to create end-to-end analytics applications. In this entirely new book, you’ll learn from interesting Java-based examples, including a complete data pipeline for processing NASA satellite data. And you’ll discover Java, Python, and Scala code samples hosted on GitHub that you can explore and adapt, plus appendixes that give you a cheat sheet for installing tools and understanding Spark-specific terms.

What's inside

Writing Spark applications in Java
Spark application architecture
Ingestion through files, databases, streaming, and Elasticsearch
Querying distributed datasets with Spark SQL

About the reader
This book does not assume previous experience with Spark, Scala, or Hadoop.

About the author
Jean-Georges Perrin is an experienced data and software architect. He is France’s first IBM Champion and has been honored for 12 consecutive years.

Table of Contents

PART 1 - THE THEORY CRIPPLED BY AWESOME EXAMPLES

1 So, what is Spark, anyway?

2 Architecture and flow

3 The majestic role of the dataframe

4 Fundamentally lazy

5 Building a simple app for deployment

6 Deploying your simple app

PART 2 - INGESTION

7 Ingestion from files

8 Ingestion from databases

9 Advanced ingestion: finding data sources and building

your own

10 Ingestion through structured streaming

PART 3 - TRANSFORMING YOUR DATA

11 Working with SQL

12 Transforming your data

13 Transforming entire documents

14 Extending transformations with user-defined functions

15 Aggregating your data

PART 4 - GOING FURTHER

16 Cache and checkpoint: Enhancing Spark’s performances

17 Exporting data and building full data pipelines

18 Exploring deployment