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Learning PySpark

You're reading from   Learning PySpark Build data-intensive applications locally and deploy at scale using the combined powers of Python and Spark 2.0

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781786463708
Length 274 pages
Edition 1st Edition
Languages
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Authors (2):
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 Drabas Drabas
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Drabas
 Lee Lee
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Lee
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Table of Contents (20) Chapters Close

Learning PySpark
Credits
Foreword
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Understanding Spark FREE CHAPTER 2. Resilient Distributed Datasets 3. DataFrames 4. Prepare Data for Modeling 5. Introducing MLlib 6. Introducing the ML Package 7. GraphFrames 8. TensorFrames 9. Polyglot Persistence with Blaze 10. Structured Streaming 11. Packaging Spark Applications Index

Chapter 9. Polyglot Persistence with Blaze

Our world is complex and no single approach exists that solves all problems. Likewise, in the data world one cannot solve all problems with one piece of technology.

Nowadays, any big technology company uses (in one form or another) a MapReduce paradigm to sift through terabytes (or even petabytes) of data collected daily. On the other hand, it is much easier to store, retrieve, extend, and update information about products in a document-type database (such as MongoDB) than it is in a relational database. Yet, persisting transaction records in a relational database aids later data summarizing and reporting.

Even these simple examples show that solving a vast array of business problems requires adapting to different technologies. This means that you, as a database manager, data scientist, or data engineer, would have to learn all of these separately if you were to solve your problems with the tools that are designed to solve them easily. This, however...

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