Hadoop: The Definitive Guide, Third Edition
by Tom White
Copyright © 2012 Tom White. All rights reserved.
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 also available for most titles (http://my.safaribooksonline.com). For more information, contact our
corporate/institutional sales department: (800) 998-9938 or corporate@oreilly.com.
Editors: Mike Loukides and Meghan Blanchette
Production Editor: Rachel Steely
Copyeditor: Genevieve d’Entremont
Proofreader: Kevin Broccoli
Indexer: Kevin Broccoli
Cover Designer: Karen Montgomery
Interior Designer: David Futato
Illustrator: Robert Romano
May 2012: Third Edition.
Revision History for the Third Edition:
2012-01-27 Early release revision 1
2012-05-07 First release
See http://oreilly.com/catalog/errata.csp?isbn=9781449311520 for release details.
Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of
O’Reilly Media, Inc. Hadoop: The Definitive Guide, the image of an elephant, and related trade dress are
trademarks of O’Reilly Media, Inc.
Many of the designations used by manufacturers and sellers to distinguish their products are claimed as
trademarks. Where those designations appear in this book, and O’Reilly Media, Inc., was aware of a
trademark claim, the designations have been printed in caps or initial caps.
While every precaution has been taken in the preparation of this book, the publisher and authors assume
no responsibility for errors or omissions, or for damages resulting from the use of the information con-
tained herein.
ISBN: 978-1-449-31152-0
[LSI]
1336503003
