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Apache ZooKeeper Essentials

Apache ZooKeeper Essentials

By : Haloi
4.3 (4)
Buy this Book
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Apache ZooKeeper Essentials

Apache ZooKeeper Essentials

4.3 (4)
By: Haloi
Buy this Book

Overview of this book

Whether you are a novice to ZooKeeper or already have some experience, you will be able to master the concepts of ZooKeeper and its usage with ease. This book assumes you to have some prior knowledge of distributed systems and high-level programming knowledge of C, Java, or Python, but no experience with Apache ZooKeeper is required.
Table of Contents (9 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. A Crash Course in Apache ZooKeeper
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1. A Crash Course in Apache ZooKeeper
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Defining a distributed system
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Why coordination in a distributed system is so challenging
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Introducing Apache ZooKeeper
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Getting hands-on with Apache ZooKeeper
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Summary
2
2. Understanding the Inner Workings of Apache ZooKeeper
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2. Understanding the Inner Workings of Apache ZooKeeper
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A top-down view of the ZooKeeper service
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The ZooKeeper data model
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The ZooKeeper operations
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Watches and ZooKeeper operations
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The ZooKeeper access control lists
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The ZooKeeper stat structure
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Understanding the inner working of ZooKeeper
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Summary
3
3. Programming with Apache ZooKeeper
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3. Programming with Apache ZooKeeper
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Using the Java client library
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The C client library
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Python client bindings
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Summary
4
4. Performing Common Distributed System Tasks
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4. Performing Common Distributed System Tasks
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ZooKeeper recipes
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Summary
5
5. Administering Apache ZooKeeper
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5. Administering Apache ZooKeeper
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Configuring a ZooKeeper server
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Configuring a ZooKeeper ensemble
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Quota and authorization
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ZooKeeper best practices
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Monitoring a ZooKeeper instance
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Summary
6
6. Decorating ZooKeeper with Apache Curator
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6. Decorating ZooKeeper with Apache Curator
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Curator components
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Exhibitor
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Summary
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7. ZooKeeper in Action
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7. ZooKeeper in Action
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Projects powered by ZooKeeper
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Organizations powered by ZooKeeper
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Summary
8
Index
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Index

Chapter 4. Performing Common Distributed System Tasks

In the previous chapter, you learned about the ZooKeeper client API and programming using the APIs. You saw how to write a client to connect to the ZooKeeper server instance and execute methods to carry out operations in the ZooKeeper namespace. You also learned how to implement watchers in a client so as to register for specific events and get notifications when such events occur, all in real time.

The simple yet powerful and elegant programming model of ZooKeeper enables us to implement high-level primitives for distributed systems. For example, we used the concept of ephemeral znodes to build an emulation of a cluster monitor in the previous chapter.

In this chapter, you will learn:

  • How to carry out common distributed system tasks such as leader election, group memberships, and two-phase commit protocol
  • How to implement a few distributed data structures such as barriers, locks, and queues

The high-level constructs outlined in...

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