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Apache Hadoop 3 Quick Start Guide

You're reading from   Apache Hadoop 3 Quick Start Guide Learn about big data processing and analytics

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781788999830
Length 220 pages
Edition 1st Edition
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Author (1):
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Hrishikesh Vijay Karambelkar Hrishikesh Vijay Karambelkar
Author Profile Icon Hrishikesh Vijay Karambelkar
Hrishikesh Vijay Karambelkar
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Table of Contents (10) Chapters Close

Preface 1. Hadoop 3.0 - Background and Introduction FREE CHAPTER 2. Planning and Setting Up Hadoop Clusters 3. Deep Dive into the Hadoop Distributed File System 4. Developing MapReduce Applications 5. Building Rich YARN Applications 6. Monitoring and Administration of a Hadoop Cluster 7. Demystifying Hadoop Ecosystem Components 8. Advanced Topics in Apache Hadoop 9. Other Books You May Enjoy

Configuring a MapReduce environment

When you install the Hadoop environment, the default environment is set up with MapReduce. You do not need to make any major changes in configuration. However, if you wish to run MapReduce program in an environment that is already set up, please ensure that the following property is set to local or classic in mapred-site.xml:

<property>
<name>mapreduce.framework.name</name>
<value>local</value>
</property>

I have elaborated on this property in detail in the next section.

Working with mapred-site.xml

We have seen core-site.xml and hdfs-site.xml files in previous files. To configure MapReduce, primarily Hadoop provides mapred-site.xml. In addition...

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