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  • Book Overview & Buying Mastering DynamoDB
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Mastering DynamoDB

Mastering DynamoDB

By : Tanmay Deshpande
2.8 (5)
Buy this Book
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Mastering DynamoDB

Mastering DynamoDB

2.8 (5)
By: Tanmay Deshpande
Buy this Book

Overview of this book

If you have interest in DynamoDB and want to know what DynamoDB is all about and become proficient in using it, this is the book for you. If you are an intermediate user who wishes to enhance your knowledge of DynamoDB, this book is aimed at you. Basic familiarity with programming, NoSQL, and cloud computing concepts would be helpful.
Table of Contents (11 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. Getting Started
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1. Getting Started
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DynamoDB's history
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What is DynamoDB?
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Data model concepts
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How do I get started?
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Summary
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2. Data Models
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2. Data Models
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Primary key
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Secondary indexes
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Data types
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Operations on tables
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Operations on items
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Query and scan operations
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Modeling relationships
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Summary
3
3. How DynamoDB Works
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3. How DynamoDB Works
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Service-oriented architecture
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Design features
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Architecture
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Functional components
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Summary
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4. Best Practices
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4. Best Practices
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Table level best practices
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Item best practices
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Query and scan best practices
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Local secondary indexes best practices
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Global secondary index best practices
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Summary
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5. Advanced Topics
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5. Advanced Topics
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Monitoring DynamoDB tables
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Using IAM to provide access control to DynamoDB
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Limitations in DynamoDB
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Error handling
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Summary
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6. Integrating DynamoDB with Other AWS Components
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6. Integrating DynamoDB with Other AWS Components
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Integrating with AWS EMR
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Integrating with AWS Redshift
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Integrating with AWS CloudSearch
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Summary
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7. DynamoDB – Use Cases
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7. DynamoDB – Use Cases
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Bookstore application
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Knowledge market website
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Summary
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8. Useful Libraries and Tools
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8. Useful Libraries and Tools
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Libraries
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Tools
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Summary
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9. Developing Mobile Apps Using DynamoDB
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9. Developing Mobile Apps Using DynamoDB
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Authentication and Authorization
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Performing operations using mobile SDKs
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Summary
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Index
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Index

Functional components

Till now, we have seen how DynamoDB's architecture provides so many features in terms of scalability, fault tolerance, availability, and so on. We also saw how ring membership is maintained and how it helps DynamoDB's desired specialities.

Each DynamoDB node consists of the following components:

  • Request coordinator
  • Membership and failure detection
  • Local persistent store (storage engine)
    Functional components

Request coordinator

The request coordinator is an event-driven messaging component that works like Staged-Even Drive Architecture (SEDA). Here, we break the complex event into multiple stages. This decouples event and thread scheduling from application logic. You can read more about SEDA at www.eecs.harvard.edu/~mdw/proj/seda/. This component is mainly responsible for handling any client requests coming its way.

Suppose a coordinator receives a get request, then it asks for the data from the respective nodes where the key range lies. It waits till it gets the acceptable number of...

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Tech Concepts
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Programming languages
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Mastering DynamoDB
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