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You're reading from  Hadoop 2.x Administration Cookbook

Product typeBook
Published inMay 2017
PublisherPackt
ISBN-139781787126732
Edition1st Edition
Tools
Hadoop
Concepts
System Administration
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Author (1)
Aman Singh
Aman Singh
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Aman Singh

Gurmukh Singh is a seasoned technology professional with 14+ years of industry experience in infrastructure design, distributed systems, performance optimization, and networks. He has worked in big data domain for the last 5 years and provides consultancy and training on various technologies. He has worked with companies such as HP, JP Morgan, and Yahoo. He has authored Monitoring Hadoop by Packt Publishing
Read more about Aman Singh

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In-transit encryption

In this recipe, we will configure in-transit encryption for securing the transfer of data between nodes during the shuffle phase. The mapper output is consumed by reducers, which can run on different nodes, so to secure the transfer channel, we secure the communication between Mappers and Reducers. We will be securing the RPC communication channel as well, although it induces a slight overhead and must be setup only if it is absolutely necessary.

Getting ready

To complete the recipe, the user must have completed the previous Configure SSL in Hadoop recipe. We will be extending the configuration already set up in that section by adding a few more options.

Note

It is recommended that the users explore SSL and learn more about ciphers to understand its security and performance implications.

How to do it...

  1. Connect to the nn1.cluster1.com master node and switch to user hadoop.

  2. To enable RPC privacy, edit core-site.xml to add the following lines on each node in the cluster:

    <...
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Hadoop 2.x Administration Cookbook
Published in: May 2017Publisher: PacktISBN-13: 9781787126732
© 2017 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Aman Singh

Gurmukh Singh is a seasoned technology professional with 14+ years of industry experience in infrastructure design, distributed systems, performance optimization, and networks. He has worked in big data domain for the last 5 years and provides consultancy and training on various technologies. He has worked with companies such as HP, JP Morgan, and Yahoo. He has authored Monitoring Hadoop by Packt Publishing
Read more about Aman Singh

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