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

Chapter 10. Data Collection with Flume

In the previous two chapters, we've seen how Hive and Sqoop give a relational database interface to Hadoop and allow it to exchange data with "real" databases. Although this is a very common use case, there are, of course, many different types of data sources that we may want to get into Hadoop.

In this chapter, we will cover:

  • An overview of data commonly processed in Hadoop

  • Simple approaches to pull this data into Hadoop

  • How Apache Flume can make this task a lot easier

  • Common patterns for simple through sophisticated, Flume setups

  • Common issues, such as the data lifecycle, that need to be considered regardless of technology