Bikas Saha created YARN-723:
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Summary: Yarn default value of physical cpu cores to virtual core
is 2
Key: YARN-723
URL: https://issues.apache.org/jira/browse/YARN-723
Project: Hadoop YARN
Issue Type: Bug
Reporter: Bikas Saha
The default virtual core allocation in the RM is 1. That means every container
will get 1 virtual core == 1/2 a physical core. Not sure if this breaks
implicit MR assumptions of maps/reduces getting at least 1 physical cpu.
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