Weiwei Yang created YARN-8127:
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Summary: Resource leak when async scheduling is enabled
Key: YARN-8127
URL: https://issues.apache.org/jira/browse/YARN-8127
Project: Hadoop YARN
Issue Type: Bug
Reporter: Weiwei Yang
Brief steps to reproduce
# Enable async scheduling, 5 threads
# Submit a lot of jobs trying to exhaust cluster resource
# After a while, observed NM allocated resource is more than resource
requested by allocated containers
Looks like the commit phase is not sync handling reserved containers, causing
some proposal incorrectly accepted, subsequently resource was deducted multiple
times for a container.
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