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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 (14) Chapters Close

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

Spark pragmatic concepts


You know what appeals the most to us developers? The ability to tap into the framework and the flexibility to extend it as per our needs. In today's world of abstraction and decoupling, this is taken care of using a variety of APIs that come out of the box.

We have talked enough about the latency issue the big data world was struggling with before Spark came and took the performance to the next level. Let's have a closer look to understand this latency problem a little better. The following diagram captures the execution of typical Hadoop processes and its intermediate steps:

Well, as depicted, Hadoop ecosystem leverages HDFS (a disk-based distributed stable storage) extensively to store the intermediate processing results:

  • Job #1: This reads the data for processing from HDFS and writes its results to HDFS
  • Job #2: This reads the interim processing results of job 1 from HDFS, processes, and writes the outcome to HDFS

While HDFS is a fault tolerant and persistent store...

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