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Apache Spark Quick Start Guide

You're reading from Apache Spark Quick Start Guide Quickly learn the art of writing efficient big data applications with Apache Spark

Product type Paperback

Published in Jan 2019

Publisher Packt

ISBN-13 9781789349108

Length 154 pages

Edition 1st Edition

Languages

Scala

Tools

Apache Spark

Concepts

Big Data

Authors (2):

Akash Grade

Shrey Mehrotra

View More author details

Table of Contents (10) Chapters

Preface

1. Introduction to Apache Spark

2. Apache Spark Installation FREE CHAPTER

3. Spark RDD

4. Spark DataFrame and Dataset

5. Spark Architecture and Application Execution Flow

6. Spark SQL

7. Spark Streaming, Machine Learning, and Graph Analysis

8. Spark Optimizations

9. Other Books You May Enjoy

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Transformations and actions

We have discussed some basic operations for creating and manipulating RDDs. Now it is time to categorize them into two main categories:

Transformations
Actions

Transformation

As the name suggests, transformations help us in transforming existing RDDs. As an output, they always create a new RDD that gets computed lazily. In the previous examples, we have discussed many transformations, such as map(), filter(), and reduceByKey().

Transformations are of two types:

Narrow transformations
Wide transformations

Narrow transformations

Narrow transformations...

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Authors (2)

Shrey Mehrotra

Shrey Mehrotra

Shrey Mehrotra has over 8 years of IT experience and, for the past 6 years, has been designing the architecture of cloud and big-data solutions for the finance, media, and governance sectors. Having worked on research and development with big-data labs and been part of Risk Technologies, he has gained insights into Hadoop, with a focus on Spark, HBase, and Hive. His technical strengths also include Elasticsearch, Kafka, Java, YARN, Sqoop, and Flume. He likes spending time performing research and development on different big-data technologies. He is the coauthor of the books Learning YARN and Hive Cookbook, a certified Hadoop developer, and he has also written various technical papers.

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Grade

Grade

Akash Grade is a data engineer living in New Delhi, India. Akash graduated with a BSc in computer science from the University of Delhi in 2011, and later earned an MSc in software engineering from BITS Pilani. He spends most of his time designing highly scalable data pipeline using big-data solutions such as Apache Spark, Hive, and Kafka. Akash is also a Databricks-certified Spark developer. He has been working on Apache Spark for the last five years, and enjoys writing applications in Python, Go, and SQL.

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