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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

FlinkCEP


CEP stands for Complex Event Processing. Flink provides API's for implementing CEP on the data stream with high throughput and low latency. CEP is kind of a processing data stream, that applies rules or conditions and whatever event satisfies the condition will be saved in the database as well as send notifications to the user as shown in the following figure. Flink matches a complex pattern against each event in the stream. This process filters out the events that are useful and discards the irrelevant ones. This gives us the opportunity to quickly get hold of what's really important in the data. Let's take an example. Let's say we have smart gensets which send the status of electricity produced and temperature of the system. Suppose if the temperature of the genset goes above 40 degrees then the user should get a notification to shut it down for a period of time or take immediate action to avoid an accident.

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