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  • Book Overview & Buying Learning Cascading
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Learning Cascading

Learning Cascading

By : Covert, Victoria Loewengart
5 (3)
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Learning Cascading

Learning Cascading

5 (3)
By: Covert, Victoria Loewengart
Buy this Book

Overview of this book

This book is intended for software developers, system architects and analysts, big data project managers, and data scientists who wish to deploy big data solutions using the Cascading framework. You must have a basic understanding of the big data paradigm and should be familiar with Java development techniques.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. The Big Data Core Technology Stack
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1. The Big Data Core Technology Stack
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Reviewing Hadoop
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MapReduce execution framework
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The Cascading framework
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Summary
2
2. Cascading Basics in Detail
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2. Cascading Basics in Detail
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Understanding common Cascading themes
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Understanding how Cascading represents records
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Understanding how Cascading controls data flow
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Putting it all together
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Summary
3
3. Understanding Custom Operations
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3. Understanding Custom Operations
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Understanding operations
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Summary
4
4. Creating Custom Operations
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4. Creating Custom Operations
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Writing custom operations
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Identifying common use cases for custom operations
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Summary
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5. Code Reuse and Integration
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5. Code Reuse and Integration
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Creating and using subassemblies
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Using cascades
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Dynamically controlling flows
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Integrating external components
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Summary
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6. Testing a Cascading Application
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6. Testing a Cascading Application
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Debugging a Cascading application
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Testing strategies
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Summary
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7. Optimizing the Performance of a Cascading Application
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7. Optimizing the Performance of a Cascading Application
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Optimizing performance
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Summary
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8. Creating a Real-world Application in Cascading
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8. Creating a Real-world Application in Cascading
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Project description – Business Intelligence case study on monitoring the competition
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Project scope – understanding requirements
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Defining the project – the Cascading development methodology
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Building the workflow
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Next steps
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Summary
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9. Planning for Future Growth
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9. Planning for Future Growth
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Finding online resources
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Using other Cascading tools
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Custom taps
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Cascading serializers
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Java open source mock frameworks
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Summary
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A. Downloadable Software
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A. Downloadable Software
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Contents
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Installing and using
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Index
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Index

Chapter 3. Understanding Custom Operations

As we saw previously, creating custom operations form the foundations of data processing in Cascading. Many of these operations exist already and quite a bit can be accomplished without resorting to this level of programming, but to fully enable Cascading it is almost always necessary to create these lower-level building blocks to perform various custom functionalities.

In this chapter, we will concentrate on an in-depth discussion about operations and their five primary types. We will focus on understanding how they work, their "life cycle", and what method calls must be implemented to create a custom operation of the designated type. In the next chapter, we will actually write them!

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Tech Concepts
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Programming languages
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Learning Cascading
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