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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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ResourceManager Web UI and JMX metrics

In the previous recipe, we presented how to configure parameters for YARN and MapReduce. As stated initially, each daemon runs a Jetty web server, which can be accessed using a web browser.

Users must take note of the fact that their RPC ports are different from HTTP ports and must not be confused with the options we used in the previous recipe. There are default web ports such as Namenode 50070, ResourceManager 8088, Datanode 50075. All these can be configured to custom ports, if needed.

Getting ready

Make sure that the user has a running cluster with YARN and HDFS configured. The user must be able to run MapReduce jobs on it.

How to do it...

  1. Point your web browser to http://master1.cyrus.com/8088, to access the ResourceManager Web UI:

  2. The Web UI gives information on running the application and the resources it uses, as shown in the following screenshot:

  3. The web interface also shows the scheduler used, which is by default capacity scheduler:

  4. The ResourceManager...

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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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