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Alejandro Abdelnur commented on YARN-723: ----------------------------------------- Bikas, where are the implicit MR assumptions on CPUs you are referring to? > 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 > Affects Versions: 2.0.4-alpha > Reporter: Bikas Saha > Fix For: 2.0.5-beta > > > 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira