András Győri created YARN-11185:
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Summary: Pending app metrics are increased doubly when a queue
reaches its max-parallel-apps limit
Key: YARN-11185
URL: https://issues.apache.org/jira/browse/YARN-11185
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler
Reporter: András Győri
Assignee: András Győri
When an application is submitted to a queue, its pending app metric is
increased, even, if the application reached the queue's max-parallel-apps
limit. If this application is allowed to run in the future because some other
application is finished, the application is submitted to the queue again,
increasing the pending app queue and user metrics again. Even if the
application finishes, it can only decrease the pending metric by one, which
makes the pending app metric monotonically increasing, whereas the ideal state
should eventually be 0.
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