Haibo Chen created YARN-8427:
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Summary: Don't start opportunistic containers at container
scheduler/finish event with over-allocation
Key: YARN-8427
URL: https://issues.apache.org/jira/browse/YARN-8427
Project: Hadoop YARN
Issue Type: Improvement
Components: nodemanager
Reporter: Haibo Chen
Assignee: Haibo Chen
As discussed in YARN-8250, we can stop opportunistic containers from being
launched at container scheduler/finish events if the node is already
over-allocating itself. This can mitigate the issue that too many
opportunistic containers can be launched and then quickly killed.
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