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https://issues.apache.org/jira/browse/YARN-8808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16631145#comment-16631145
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Arun Suresh commented on YARN-8808:
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bq. Node has capacity for 4 1GB containers, but is currently running 2
containers each using more than 1.9GB - in this case, overallocation should be
allowed.
sorry, I meant 2 container each allocated 1 GB but using 0.9GB. This would
result in the container utilization = 90% (1.8 / 2.0)
but the Node utilization would be = 45% (1.8 / 4.0). Here Container Utilization
is high by node utilization is low.
> Use aggregate container utilization instead of node utilization to determine
> resources available for oversubscription
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-8808
> URL: https://issues.apache.org/jira/browse/YARN-8808
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: YARN-1011
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Priority: Major
> Attachments: YARN-8088-YARN-1011.01.patch,
> YARN-8808-YARN-1011.00.patch
>
>
> Resource oversubscription should be bound to the amount of the resources that
> can be allocated to containers, hence the allocation threshold should be with
> respect to aggregate container utilization.
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