Karthik Kambatla created YARN-6582:
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Summary: FSAppAttempt demand can be updated atomically in
updateDemand()
Key: YARN-6582
URL: https://issues.apache.org/jira/browse/YARN-6582
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Karthik Kambatla
Assignee: Karthik Kambatla
FSAppAttempt#updateDemand first sets demand to 0, and then adds up all the
outstanding requests. Instead, we could use another variable tmpDemand to build
the new value and atomically replace the demand.
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