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  • Book Overview & Buying Apache ZooKeeper Essentials
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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
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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
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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
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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
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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
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Index
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Index

The ZooKeeper access control lists

ZooKeeper's data model provides a mechanism to control the access to znodes using ACL. While creating a znode, the ACLs determine the permissions with respect to the various operations that you can perform on the znodes. The ZooKeeper ACL model is similar to the Unix/Linux file permissions in terms of permitting or preventing operations being done on a znode by setting/unsetting permission bits. However, the ZooKeeper node doesn't have the concept of ownership, which is present in the Unix/Linux filesystem. ACLs are determined on the basis of the authentication mechanism of the client and the ZooKeeper service.

ZooKeeper provides the following built-in authentication mechanisms based on ACLs:

  • World: This represents anyone who is connecting to the ZooKeeper service
  • Auth: This represents any authenticated user, but doesn't use any ID
  • Digest: This represents the username and password way of authentication
  • IP address: This represents authentication...
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Tech Concepts
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Programming languages
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Apache ZooKeeper Essentials
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