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Practical Real-time Data Processing and Analytics

You're reading from   Practical Real-time Data Processing and Analytics Distributed Computing and Event Processing using Apache Spark, Flink, Storm, and Kafka

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781787281202
Length 360 pages
Edition 1st Edition
Languages
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Authors (2):
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Shilpi Saxena Shilpi Saxena
Author Profile Icon Shilpi Saxena
Shilpi Saxena
Saurabh Gupta Saurabh Gupta
Author Profile Icon Saurabh Gupta
Saurabh Gupta
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Table of Contents (20) Chapters Close

Title Page
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
1. Introducing Real-Time Analytics FREE CHAPTER 2. Real Time Applications – The Basic Ingredients 3. Understanding and Tailing Data Streams 4. Setting up the Infrastructure for Storm 5. Configuring Apache Spark and Flink 6. Integrating Storm with a Data Source 7. From Storm to Sink 8. Storm Trident 9. Working with Spark 10. Working with Spark Operations 11. Spark Streaming 12. Working with Apache Flink 13. Case Study

Flink architecture and execution engine


Flink is a platform for distributed stream and batch data processing. The core of Flink is a streaming dataflow engine. Flink is based on Kappa architecture. Kappa architecture was introduced in 2014 by Jay Kreps in https://www.oreilly.com/ideas/questioning-the-lambda-architecture which addresses the pitfalls of Lambda architecture. So before going into the details of Flink, let's figure out the base of Flink: Kappa architecture. Kappa architecture is designed to handle real-time data processing and continuous data reprocessing using a single data stream. There were two main concerns raised related to Lambda architecture: maintaining two different code bases for real-time analytics and batch analytics on the same source data and the reprocessing of events will require code changes which is not easy to maintain as seen in the following figure:

So in Kappa architecture, there is everything in streaming data. In case of the failure and reprocessing of...

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