Yarn Frequently Asked Questions
(Doc ID 1910068.1)
Last updated on NOVEMBER 08, 2022
Applies to:
Big Data Appliance Integrated Software - Version 2.5.0 and laterLinux x86-64
Purpose
This document provides answers to frequently asked questions about Yarn installed on Oracle Big Data Appliance (BDA).
Questions and Answers
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In this Document
Purpose |
Questions and Answers |
What is Yarn? |
Will I need to make changes to my code or scripts when using Yarn instead of MapReduce? |
Is there anyway to calculate how many containers (2 MB / 1 CPU) that particular user might consume when we migrate to CDH 5 / YARN? |
Do Hue users need to have an account on all BDA nodes or on the Resource Manager (RM) nodes to avoid getting "Failed to run job : Error assigning app to queue default" when running a job? |
We set the yarn.nodemanager.resource.memory-mb in CM, but the job.xml file is still showing the default 8GB. Why isn't this setting taking place? |
What is this "Java Heap Size of NodeManager" and how is it related to Container memory given by yarn.nodemanager.resource.memory-mb? |