Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Hbase Essentials
Hbase Essentials

Hbase Essentials: A practical guide to realizing the seamless potential of storing and managing high-volume, high-velocity data quickly and painlessly with HBase

eBook
$15.99 $22.99
Paperback
$38.99
Subscription
Free Trial
Renews at $19.99p/m

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Table of content icon View table of contents Preview book icon Preview Book

Hbase Essentials

Chapter 2. Defining the Schema

In this chapter, we are going to learn some of the basic concepts of the column family database, that is, HBase, and cover the following topics:

  • Data modeling
  • Designing tables
  • CRUD operations

Let's dive in and start off by taking a look at how we can model data in HBase.

Data modeling in HBase

In the RDBMS world, data modeling has principles around tables, columns, data types, size, and so on, and the only supported format is structured data. HBase is quite different in this aspect, as in each row, it can store different numbers of columns and data types, making it ideal for storing so-called semi-structured data. Storing semi-structured data not only impacts the physical schema but also the logical schema of HBase. For the same reason, some features such as relational constraints are also not present in HBase.

Similar to a typical RDBMS, tables are composed of rows and these rows are composed of columns. Rows in HBase are identified by a unique rowkey and are compared with each other at the byte level, which resembles a primary key in RDBMS.

In HBase, columns are organized into column families. There is no restriction on the number of columns that can be grouped together in a single column family. This column family is part of the data definition statement...

Designing tables

In HBase, when modeling the schema for any table, a designer should also keep in mind the following, among other things:

  • The number of column families and which data goes to which column family
  • The maximum number of columns in each column family
  • The type of data to be stored in the column
  • The number of historical values that need to be maintained for each column
  • The structure of a rowkey

Once we have answers, certain practices are followed to ensure optimal table design. Some of the design practices are as follows:

  • Data for a given column family goes into a single store on HDFS. This store might consist of multiple HFiles, which eventually get converted to a single HFile using compaction techniques.
  • Columns in a column family are also stored together on the disk, and the columns with different access patterns should be kept in different column families.
  • If we design tables with fewer columns and many rows (a tall table), we might achieve O(1) operations but also compromise with...

Accessing HBase

In the previous chapter, we saw how to create a table and simple data operations using the HBase shell. HBase can be accessed using a variety of clients, such as REST clients, Thrift client, object mapper framework—Kundera, and so on. HBase clients are discussed in detail in Chapter 6, HBase Clients. HBase also offers advanced Java-based APIs for playing with tables and column families. (HBase shell is a wrapper around this Java API.) This API also supports metadata management, for example, data compression for column family, region split, and so on. In addition to schema definition, the API also provides an interface for a table scan with various functions such as limiting the number of columns returned or limiting the number of versions of each cell to be stored. For data manipulation, the Hbase API supports create, read, update, and delete operations on individual rows. This API comes with many advanced features, which will be discussed throughout this book.

Note...

Summary

In this chapter, we learned the basics of modeling data and some strategies to consider when designing a table in HBase. We also learned how to perform basic CRUD operations on the table created using various APIs provided by HBase. In the next chapter, we will look into HBase table keys, table scan, and some other advanced features such as filters.

Left arrow icon Right arrow icon

Description

This book is intended for developers and Big Data engineers who want to know all about HBase at a hands-on level. For in-depth understanding, it would be helpful to have a bit of familiarity with HDFS and MapReduce programming concepts with no prior experience with HBase or similar technologies. This book is also for Big Data enthusiasts and database developers who have worked with other NoSQL databases and now want to explore HBase as another futuristic, scalable database solution in the Big Data space.

What you will learn

  • Realize the need for HBase
  • Download and set up HBase cluster
  • Grasp data modeling concepts in HBase and how to perform CRUD operations on data
  • Perform effective data scanning and data filtration in HBase
  • Understand data storage and replication in HBase
  • Explore HBase counters, coprocessors, and MapReduce integration
  • Get acquainted with different clients of HBase such as REST and Kundera ORM
  • Learn about cluster management and performance tuning in HBase
Estimated delivery fee Deliver to Colombia

Standard delivery 10 - 13 business days

$19.95

Premium delivery 3 - 6 business days

$40.95
(Includes tracking information)

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Nov 14, 2014
Length: 164 pages
Edition : 1st
Language : English
ISBN-13 : 9781783987245
Vendor :
Apache
Category :
Languages :
Concepts :
Tools :

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Estimated delivery fee Deliver to Colombia

Standard delivery 10 - 13 business days

$19.95

Premium delivery 3 - 6 business days

$40.95
(Includes tracking information)

Product Details

Publication date : Nov 14, 2014
Length: 164 pages
Edition : 1st
Language : English
ISBN-13 : 9781783987245
Vendor :
Apache
Category :
Languages :
Concepts :
Tools :

Packt Subscriptions

See our plans and pricing
Modal Close icon
$19.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
$199.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just $5 each
Feature tick icon Exclusive print discounts
$279.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just $5 each
Feature tick icon Exclusive print discounts

Frequently bought together


Stars icon
Total $ 142.97
Hbase Essentials
$38.99
Mastering Hadoop
$54.99
Learning Hbase
$48.99
Total $ 142.97 Stars icon

Table of Contents

8 Chapters
1. Introducing HBase Chevron down icon Chevron up icon
2. Defining the Schema Chevron down icon Chevron up icon
3. Advanced Data Modeling Chevron down icon Chevron up icon
4. The HBase Architecture Chevron down icon Chevron up icon
5. The HBase Advanced API Chevron down icon Chevron up icon
6. HBase Clients Chevron down icon Chevron up icon
7. HBase Administration Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.5
(2 Ratings)
5 star 0%
4 star 50%
3 star 50%
2 star 0%
1 star 0%
Ian Stirk Sep 29, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Hi,I have written a detailed chapter-by-chapter review of this book on www DOT i-programmer DOT info, the first and last parts of this review are given here. For my review of all chapters, search i-programmer DOT info for STIRK together with the book's title.This book aims at getting you started in programming with HBase, how does it fare?Hadoop is the most popular platform for processing big data, and HBase is the NoSQL database included with Hadoop. The book is aimed at software developers that have no previous experience of HBase, wanting a hands-on approach.Below is a chapter-by-chapter exploration of the topics covered.Chapter 1 Introducing HBaseThis chapter opens with the observation that relational database management systems (RDBMS) are unable to scale to process huge amounts of data in a timely manner. Instead, this is the realm of big data databases such as HBase.The chapter defines big data in terms of huge volumes, high velocity, and varied types of data. Currently 20 terabytes of data is created every second, and this metric is increasing. The foundations of big data processing were established by Google in their papers on the Google File System (GFS) storage, and MapReduce processing model. Google also produced details of a scalable Bigtable database which could handle millions of columns and billions of rows, HBase is based on Bigtable.The chapter continues with a look at how to install HBase together with its prerequisites. The various modes of running HBase are discussed, these are: local, pseudo-distributed and fully distributed.The various HBase cluster components are briefly described, namely:-HBase Master – coordinates HBase cluster/admin operations-Zookeeper – centralized service for distributed synchronization-Region Servers – store horizontal rows as regionsThe chapter ends with a look at the HBase shell, this provides an environment to run interactive commands or batches, it’s a useful tool for experimenting with HBase. Various commands are introduced, including: status, create table, list, get, put, scan, delete, describe, and drop.This chapter provides a useful introduction to HBase in terms of the history of big data, the need to process huge amounts of data, and an outline of the HBase components. Useful installation instructions are provided, together with a HBase shell tutorial for playing and testing with HBase.This chapter provides well written discussions which are generally easy to read, has helpful diagrams, outputs, scripts, and brief practical walkthroughs. There are useful links to other chapters. Sometimes, terms are used before they are defined (e.g. HMaster and Zookeeper). These traits apply to the whole of the book....ConclusionThe book has well-written discussions which are generally easy to read, helpful diagrams, outputs, scripts, and brief practical walkthroughs. There are useful links to other chapters.This book aims to get you started in programming with HBase, however, it deviates from this, containing as much administration detail as programming. Sometimes terms are used before they are defined (e.g. HMaster and Zookeeper), suggesting you need some knowledge of Hadoop. It would have been helpful to list where to go next to extend your HBase knowledge.This book will help you get up and running with HBase, show you how to use HBase from various clients, and give you an understanding of its internal structure, I can recommend it as a starter book.
Amazon Verified review Amazon
MMT Oct 31, 2016
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Easy to understand....
Amazon Verified review Amazon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

What is the delivery time and cost of print book? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela
What is custom duty/charge? Chevron down icon Chevron up icon

Customs duty are charges levied on goods when they cross international borders. It is a tax that is imposed on imported goods. These duties are charged by special authorities and bodies created by local governments and are meant to protect local industries, economies, and businesses.

Do I have to pay customs charges for the print book order? Chevron down icon Chevron up icon

The orders shipped to the countries that are listed under EU27 will not bear custom charges. They are paid by Packt as part of the order.

List of EU27 countries: www.gov.uk/eu-eea:

A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order.

How do I know my custom duty charges? Chevron down icon Chevron up icon

The amount of duty payable varies greatly depending on the imported goods, the country of origin and several other factors like the total invoice amount or dimensions like weight, and other such criteria applicable in your country.

For example:

  • If you live in Mexico, and the declared value of your ordered items is over $ 50, for you to receive a package, you will have to pay additional import tax of 19% which will be $ 9.50 to the courier service.
  • Whereas if you live in Turkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service.
How can I cancel my order? Chevron down icon Chevron up icon

Cancellation Policy for Published Printed Books:

You can cancel any order within 1 hour of placing the order. Simply contact customercare@packt.com with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at customercare@packt.com using the returns and refund process.

Please understand that Packt Publishing cannot provide refunds or cancel any order except for the cases described in our Return Policy (i.e. Packt Publishing agrees to replace your printed book because it arrives damaged or material defect in book), Packt Publishing will not accept returns.

What is your returns and refunds policy? Chevron down icon Chevron up icon

Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on customercare@packt.com with the order number and issue details as explained below:

  1. If you ordered (eBook, Video or Print Book) incorrectly or accidentally, please contact Customer Relations Team on customercare@packt.com within one hour of placing the order and we will replace/refund you the item cost.
  2. Sadly, if your eBook or Video file is faulty or a fault occurs during the eBook or Video being made available to you, i.e. during download then you should contact Customer Relations Team within 14 days of purchase on customercare@packt.com who will be able to resolve this issue for you.
  3. You will have a choice of replacement or refund of the problem items.(damaged, defective or incorrect)
  4. Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
  5. If you are only requesting a refund of one book from a multiple order, then we will refund you the appropriate single item.
  6. Where the items were shipped under a free shipping offer, there will be no shipping costs to refund.

On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on customercare@packt.com within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

What tax is charged? Chevron down icon Chevron up icon

Currently, no tax is charged on the purchase of any print book (subject to change based on the laws and regulations). A localized VAT fee is charged only to our European and UK customers on eBooks, Video and subscriptions that they buy. GST is charged to Indian customers for eBooks and video purchases.

What payment methods can I use? Chevron down icon Chevron up icon

You can pay with the following card types:

  1. Visa Debit
  2. Visa Credit
  3. MasterCard
  4. PayPal
What is the delivery time and cost of print books? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela