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https://issues.apache.org/jira/browse/YARN-3119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anubhav Dhoot reassigned YARN-3119:
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Assignee: (was: Anubhav Dhoot)
> Memory limit check need not be enforced unless aggregate usage of all
> containers is near limit
> ----------------------------------------------------------------------------------------------
>
> Key: YARN-3119
> URL: https://issues.apache.org/jira/browse/YARN-3119
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Reporter: Anubhav Dhoot
> Attachments: YARN-3119.prelim.patch
>
>
> Today we kill any container preemptively even if the total usage of
> containers for that is well within the limit for YARN. Instead if we enforce
> memory limit only if the total limit of all containers is close to some
> configurable ratio of overall memory assigned to containers, we can allow for
> flexibility in container memory usage without adverse effects. This is
> similar in principle to how cgroups uses soft_limit_in_bytes.
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