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Learning Spark SQL

You're reading from Learning Spark SQL Architect streaming analytics and machine learning solutions

Product type Paperback

Published in Sep 2017

Publisher Packt

ISBN-13 9781785888359

Length 452 pages

Edition 1st Edition

Languages

Scala

Tools

Apache Spark

Concepts

Data Streaming

Author (1):

Aurobindo Sarkar

View More author details

Table of Contents (13) Chapters

Preface

1. Getting Started with Spark SQL FREE CHAPTER

2. Using Spark SQL for Processing Structured and Semistructured Data

3. Using Spark SQL for Data Exploration

4. Using Spark SQL for Data Munging

5. Using Spark SQL in Streaming Applications

6. Using Spark SQL in Machine Learning Applications

7. Using Spark SQL in Graph Applications

8. Using Spark SQL with SparkR

9. Developing Applications with Spark SQL

10. Using Spark SQL in Deep Learning Applications

11. Tuning Spark SQL Components for Performance

12. Spark SQL in Large-Scale Application Architectures

Using Spark with Avro files

Avro is a very popular data serialization system that provides a compact and fast binary data format. Avro files are self-describing because the schema is stored along with the data.

You can download spark-avro connector JAR from https://mvnrepository.com/artifact/com.databricks/spark-avro_2.11/3.2.0.

We will switch to Spark 2.1 for this section. At the time of writing this book due to a documented bug in the spark-avro connector library, we are getting exceptions while writing Avro files (using spark-avro connector 3.2) with Spark 2.2.

Start Spark shell with the spark-avro JAR included in the session:

Aurobindos-MacBook-Pro-2:spark-2.1.0-bin-hadoop2.7 aurobindosarkar$ bin/spark-shell --jars /Users/aurobindosarkar/Downloads/spark-avro_2.11-3.2.0.jar

We will use the JSON file from the previous section containing the Amazon reviews data to create...

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Authors (1)

Sarkar

Sarkar

Aurobindo Sarkar leads a team of data scientists and engineers at Session AI, developing cloud-based ML models for in-session marketing in e-commerce and retail. As a former CTO at multiple SaaS startups, he has architected secure, scalable, and highly available AWS cloud applications. His research interests now focus on AWS-based large-scale transformer models for NLP and HFT models for the futures and options market. Aurobindo holds a bachelor's degree in engineering from IIT Delhi, a master's in management from the Indian Institute of Science Bangalore, and a master's in computer science from New York University.

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