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YARN Essentials

You're reading from   YARN Essentials A comprehensive, hands-on guide to install, administer, and configure settings in YARN

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Product type Paperback
Published in Feb 2015
Publisher
ISBN-13 9781784391737
Length 176 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (12) Chapters Close

Preface 1. Need for YARN FREE CHAPTER 2. YARN Architecture 3. YARN Installation 4. YARN and Hadoop Ecosystems 5. YARN Administration 6. Developing and Running a Simple YARN Application 7. YARN Frameworks 8. Failures in YARN 9. YARN – Alternative Solutions 10. YARN – Future and Support Index

Container configurations


Here are the some important configurations related to resource containers that are used to control containers.

To control the memory allocation to a container, the administrator needs to set the following three parameters in the yarn-site.xml configuration file:

Parameter

Description

yarn.nodemanager.resource.memory-mb

This is the amount of memory in MBs that the NodeManager can use for the containers.

yarn.scheduler.minimum-allocation-mb

This is the smallest amount of memory in MBs allocated to the container by the ResourceManager. The default value is 1024 MB.

yarn.scheduler.maximum-allocation-mb

This is the largest amount of memory in MBs allocated to the container by the ResourceManager. The default value is 8192 MB.

The CPU core allocations to the container are controlled by setting the following properties in the yarn-site.xml configuration file:

Parameter

Description

yarn.scheduler.minimum-allocation-vcores

This is the minimum number of CPU...

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