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Elasticsearch

A DISTRIBUTED REAL-TIME SEARCH AND ANALYTICS ENGINE

The Definitive Guide

Clinton Gormley &

Zachary Tong

Elasticsearch: The Definitive Guide

Whether you need full-text search or real-time analytics of structured data—

or both—the Elasticsearch distributed search engine is an ideal way to put

your data to work. This practical guide not only shows you how to search,

analyze, and explore data with Elasticsearch, but also helps you deal with the

complexities of human language, geolocation, and relationships.

If you’re a newcomer to both search and distributed systems, you’ll

quickly learn how to integrate Elasticsearch into your application. More

experienced users will pick up lots of advanced techniques. Throughout

the book, you’ll follow a problem-based approach to learn why, when, and

how to use Elasticsearch features.

■

The book could easily be

“

retitled as 'Understanding

search engines using

Elasticsearch.' Great job.

Way beyond just simply

using Elasticsearch.

Search Consultant

—Ivan Brusic

”

Understand how Elasticsearch interprets data in your

documents

Index and query your data to take advantage of search

concepts such as relevance and word proximity

Handle human language through the effective use of analyzers

and queries

Summarize and group data to show overall trends, with

aggregations and analytics

Use geo-points and geo-shapes—Elasticsearch’s approaches

to geolocation

Model your data to take advantage of Elasticsearch’s horizontal

scalability

Learn how to configure and monitor your cluster in production

■

Clinton Gormley

was the first user of Elasticsearch and wrote the Perl API back

in 2010. When Elasticsearch formed a company in 2012, he joined as a developer

and the maintainer of the Perl modules.

Zachary Tong

has been working with Elasticsearch since 2011, and has written

several tutorials to help beginners using the server. Zach is a developer at

Elasticsearch and maintains the PHP client.

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CAN $57.99

US $49.99

ISBN: 978-1-449-35854-9

Elasticsearch: The Definitive Guide

Clinton Gormley and Zachary Tong

Elasticsearch: The Definitive Guide

by Clinton Gormley and Zachary Tong

Printed in the United States of America.

Published by O’Reilly Media, Inc. , 1005 Gravenstein Highway North, Sebastopol, CA 95472.

O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are

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institutional sales department: 800-998-9938 or corporate@oreilly.com.

Editors:

Mike Loukides and Brian Anderson

Production Editor:

Shiny Kalapurakkel

Proofreader:

Sharon Wilkey

Indexer:

Ellen Troutman-Zaig

January 2015:

First Edition

Interior Designer:

David Futato

Cover Designer:

Ellie Volkhausen

Illustrator:

Rebecca Demarest

Revision History for the First Edition

2015-01-16:

First Release

See

http://oreilly.com/catalog/errata.csp?isbn=9781449358549

for release details.

The O’Reilly logo is a registered trademark of O’Reilly Media, Inc.

Elasticsearch: The Definitive Guide,

the

cover image, and related trade dress are trademarks of O’Reilly Media, Inc.

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trademarks. Where those designations appear in this book, and O’Reilly Media, Inc. was aware of a trade‐

mark claim, the designations have been printed in caps or initial caps.

While the publisher and the authors have used good faith efforts to ensure that the information and

instructions contained in this work are accurate, the publisher and the authors disclaim all responsibility

for errors or omissions, including without limitation responsibility for damages resulting from the use of

or reliance on this work. Use of the information and instructions contained in this work is at your own

risk. If any code samples or other technology this work contains or describes is subject to open source

licenses or the intellectual property rights of others, it is your responsibility to ensure that your use

thereof complies with such licenses and/or rights.

978-1-449-35854-9

[LSI]

Table of Contents

Foreword. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Part I.

Getting Started

iii

1. You Know, for Search…. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installing Elasticsearch

Installing Marvel

Running Elasticsearch

Viewing Marvel and Sense

Talking to Elasticsearch

Java API

RESTful API with JSON over HTTP

Document Oriented

JSON

Finding Your Feet

Let’s Build an Employee Directory

Indexing Employee Documents

Retrieving a Document

Search Lite

Search with Query DSL

More-Complicated Searches

Full-Text Search

Phrase Search

Highlighting Our Searches

Analytics

Tutorial Conclusion

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