Learning Hadoop 2
Год: 2015
Автор: Garry Turkington, Gabriele Modena
Издательство: Packt Publishing
ISBN: 978-1-78328-552-5
Язык: Английский
Формат: PDF
Качество: Изначально компьютерное (eBook)
Количество страниц: 382
This book introduces you to the world of building data-processing applications with the wide variety of tools supported by Hadoop 2. Starting with the core components of the framework?HDFS and YARN?this book will guide you through how to build applications using a variety of approaches.
You will learn how YARN completely changes the relationship between MapReduce and Hadoop and allows the latter to support more varied processing approaches and a broader array of applications. These include real-time processing with Apache Samza and iterative computation with Apache Spark. Next up, we discuss Apache Pig and the dataflow data model it provides. You will discover how to use Pig to analyze a Twitter dataset.
With this book, you will be able to make your life easier by using tools such as Apache Hive, Apache Oozie, Hadoop Streaming, Apache Crunch, and Kite SDK. The last part of this book discusses the likely future direction of major Hadoop components and how to get involved with the Hadoop community.
Примеры страниц Оглавление
Chapter 1: Introduction

A note on versioning
The background of Hadoop
Components of Hadoop
Hadoop 2 – what's the big deal?
Distributions of Apache Hadoop
A dual approach
AWS – infrastructure on demand from Amazon
Getting started
Running the examples
Data processing with Hadoop
Chapter 2: Storage
The inner workings of HDFS
Command-line access to the HDFS filesystem
Protecting the filesystem metadata
Apache ZooKeeper – a different type of filesystem
Automatic NameNode failover
HDFS snapshots
Hadoop filesystems
Managing and serializing data
Storing data
Chapter 3: Processing – MapReduce and Beyond
Java API to MapReduce
Writing MapReduce programs
Walking through a run of a MapReduce job
YARN in the real world – Computation beyond MapReduce
Chapter 4: Real-time Computation with Samza
Stream processing with Samza
Chapter 5: Iterative Computation with Spark
Apache Spark
The Spark ecosystem
Processing data with Apache Spark
Comparing Samza and Spark Streaming
Chapter 6: Data Analysis with Apache Pig
An overview of Pig
Getting started
Running Pig
Fundamentals of Apache Pig
Programming Pig
Extending Pig (UDFs)
Analyzing the Twitter stream
Chapter 7: Hadoop and SQL
Why SQL on Hadoop
Hive architecture
Hive and Amazon Web Services
Extending HiveQL
Programmatic interfaces
Stinger initiative
Chapter 8: Data Lifecycle Management
What data lifecycle management is
Building a tweet analysis capability
Challenges of external data
Collecting additional data
Pulling it all together
Chapter 9: Making Development Easier
Choosing a framework
Hadoop streaming
Kite Data
Apache Crunch
Chapter 10: Running a Hadoop Cluster
I'm a developer – I don't care about operations!
Cloudera Manager
Ambari – the open source alternative
Operations in the Hadoop 2 world
Sharing resources
Building a physical cluster
Building a cluster on EMR
Cluster tuning
Chapter 11: Where to Go Next
Alternative distributions
Other computational frameworks
Other interesting projects
Other programming abstractions
AWS resources
Sources of information

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