Carlo Curino created YARN-1434:
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Summary: Single Job can affect fairshare of others
Key: YARN-1434
URL: https://issues.apache.org/jira/browse/YARN-1434
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Reporter: Carlo Curino
Priority: Minor
A job receiving containers and deciding not to use them and yielding them back
in the next heartbeat could significantly affect the amount of resources given
to other jobs.
This is because by yielding containers back the job appears always to be
under-capacity (more than others) so it is picked to be the next to receive
containers.
Observed by Robert Grandl, to be independently confirmed.
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