Weiwei Yang created YARN-8546:
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Summary: A reserved container might be released multiple times
under async scheduling
Key: YARN-8546
URL: https://issues.apache.org/jira/browse/YARN-8546
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler
Affects Versions: 3.1.0
Reporter: Weiwei Yang
I was able to reproduce this issue by starting a job, and this job keeps
requesting containers until it uses up cluster available resource. My cluster
has 70200 vcores, and each task it applies for 100 vcores, I was expecting
total 702 containers can be allocated but eventually there was only 701. The
last container could not get allocated because queue used resource is updated
to be more than 100%.
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