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https://issues.apache.org/jira/browse/YARN-8930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haibo Chen updated YARN-8930:
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Summary: CGroup-based strict container memory enforcement does not work
with CGroupElasticMemoryController (was: CGroup-based strict container memory
management does not work with CGroupElasticMemoryController)
> CGroup-based strict container memory enforcement does not work with
> CGroupElasticMemoryController
> -------------------------------------------------------------------------------------------------
>
> Key: YARN-8930
> URL: https://issues.apache.org/jira/browse/YARN-8930
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 3.2.0
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Priority: Major
>
> When yarn.nodemanger.resource.memory.enforced is set to true with memory
> cgroup turned on, (aka strict memory enforcement), containers monitor relies
> on the under_oom status read from the container cgroup's memory.oom_control
> file.
> However, when the root yarn container cgroup is under oom (e.g. when the node
> is overallocating iteself), the under_oom status is set for all yarn
> containers regardless of whether each individual container has run over its
> memory limit.
> What essentially happens is that whenever the root cgroup is under oom, all
> yarn containers are killed.
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