Deepak Vohra - Apache HBase Primer

HBase Primer

Deepak Vohra

Apache HBase Primer

Deepak Vohra

White Rock, British Columbia

Canada

ISBN-13 (pbk): 978-1-4842-2423-6 ISBN-13 (electronic): 978-1-4842-2424-3 DOI 10.1007/978-1-4842-2424-3

Library of Congress Control Number: 2016959189

Copyright 2016 by Deepak Vohra

This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Trademarked names, logos, and images may appear in this book. Rather than use a trademark symbol with every occurrence of a trademarked name, logo, or image we use the names, logos, and images only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark.

The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights.

While the advice and information in this book are believed to be true and accurate at the date of publication, neither the authors nor the editors nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein.

Managing Director: Welmoed Spahr

Lead Editor: Steve Anglin

Technical Reviewer: Massimo Nardone

Editorial Board: Steve Anglin, Pramila Balan, Laura Berendson, Aaron Black, Louise Corrigan, Jonathan Gennick, Robert Hutchinson, Celestin Suresh John, Nikhil Karkal, James Markham, Susan McDermott, Matthew Moodie, Natalie Pao, Gwenan Spearing

Coordinating Editor: Mark Powers

Copy Editor: Mary Behr

Compositor: SPi Global

Indexer: SPi Global

Artist: SPi Global

Distributed to the book trade worldwide by Springer Science+Business Media New York, 233 Spring Street, 6th Floor, New York, NY 10013. Phone 1-800-SPRINGER, fax (201) 348-4505, e-mail orders-ny@springer-sbm.com , or visit www.springeronline.com . Apress Media, LLC is a

California LLC and the sole member (owner) is Springer Science + Business Media Finance Inc (SSBM Finance Inc). SSBM Finance Inc is a Delaware corporation. For information on translations, please e-mail rights@apress.com , or visit www.apress.com .

Apress and friends of ED books may be purchased in bulk for academic, corporate, or promotional use. eBook versions and licenses are also available for most titles. For more information, reference our Special Bulk SaleseBook Licensing web page at www.apress.com/bulk-sales .

Any source code or other supplementary materials referenced by the author in this text are available to readers at www.apress.com . For detailed information about how to locate your

books source code, go to www.apress.com/source-code/ . Readers can also access source code

at SpringerLink in the Supplementary Material section for each chapter. Printed on acid-free paper

About the Author ............................................................................ xiii

About the Technical Reviewer ......................................................... xv

Introduction ................................................................................... xvii

Chapter 1: Fundamental Characteristics ........................................ 3

Chapter 2: Apache HBase and HDFS ............................................... 9

Chapter 3: Application Characteristics ......................................... 45

Chapter 4: Physical Storage ......................................................... 51

Chapter 5: Column Family and Column Quali er .......................... 53

Chapter 6: Row Versioning ........................................................... 59

Chapter 7: Logical Storage ........................................................... 63

Chapter 8: Major Components of a Cluster ................................... 69

Chapter 9: Regions ....................................................................... 75

Chapter 10: Finding a Row in a Table ........................................... 81

Chapter 11: Compactions ............................................................. 87

Chapter 12: Region Failover ......................................................... 99

Chapter 13: Creating a Column Family ....................................... 105

CONTENTS AT A GLANCE

Chapter 14: Region Splitting....................................................... 111

Chapter 15: De ning the Row Keys ............................................ 117

Chapter 16: The HBaseAdmin Class............................................ 123

Chapter 17: Using the Get Class ................................................. 129

Chapter 18: Using the HTable Class ............................................ 133

Chapter 19: Using the HBase Shell ............................................. 137

Chapter 20: Bulk Loading Data ................................................... 145

Index .............................................................................................. 149

About the Author ............................................................................ xiii

About the Technical Reviewer ......................................................... xv

Introduction ................................................................................... xvii

Chapter 1: Fundamental Characteristics ........................................ 3

Distributed ............................................................................................... 3

Big Data Store ......................................................................................... 3

Non-Relational ......................................................................................... 3

Flexible Data Model ................................................................................. 4

Scalable ................................................................................................... 4

Roles in Hadoop Big Data Ecosystem ...................................................... 5

How Is Apache HBase Different from a Traditional RDBMS? ................... 5

Summary ................................................................................................. 8

Chapter 2: Apache HBase and HDFS ............................................... 9

Overview ................................................................................................. 9

Storing Data .......................................................................................... 14

HFile Data les- HFile v1 ....................................................................... 15