Book Image

Hadoop Beginner's Guide

Book Image

Hadoop Beginner's Guide

Overview of this book

Data is arriving faster than you can process it and the overall volumes keep growing at a rate that keeps you awake at night. Hadoop can help you tame the data beast. Effective use of Hadoop however requires a mixture of programming, design, and system administration skills."Hadoop Beginner's Guide" removes the mystery from Hadoop, presenting Hadoop and related technologies with a focus on building working systems and getting the job done, using cloud services to do so when it makes sense. From basic concepts and initial setup through developing applications and keeping the system running as the data grows, the book gives the understanding needed to effectively use Hadoop to solve real world problems.Starting with the basics of installing and configuring Hadoop, the book explains how to develop applications, maintain the system, and how to use additional products to integrate with other systems.While learning different ways to develop applications to run on Hadoop the book also covers tools such as Hive, Sqoop, and Flume that show how Hadoop can be integrated with relational databases and log collection.In addition to examples on Hadoop clusters on Ubuntu uses of cloud services such as Amazon, EC2 and Elastic MapReduce are covered.
Table of Contents (19 chapters)
Hadoop Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

AWS considerations


We've not mentioned AWS so far in this chapter as there's been nothing in Sqoop that either supports or prevents its use on AWS. We can run Sqoop on an EC2 host as easily as on a local one, and it can access either a manually or EMR-created Hadoop cluster optionally running Hive. The only possible quirk when considering use in AWS is security group access as many default EC2 configurations will not allow traffic on the ports used by most relational databases (3306 by default for MySQL). But, that's no more of an issue than if our Hadoop cluster and MySQL database were to be located on different sides of a firewall or any other network security boundary.

Considering RDS

There is another AWS service that we've not mentioned before that does deserve an introduction now. Amazon Relational Database Service (RDS) offers hosted relational databases in the cloud and provides MySQL, Oracle, and Microsoft SQL Server options. Instead of having to worry about the installation, configuration...