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Haibo Chen commented on YARN-8930: ---------------------------------- Cleaned up the checkstyle issues in the new patch. > 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 > Attachments: YARN-8930.00.patch, YARN-8930.01.patch > > > 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org