Eric Payne created YARN-7052:
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Summary: RM SchedulingMonitor should use HadoopExecutors when
creating ScheduledExecutorService
Key: YARN-7052
URL: https://issues.apache.org/jira/browse/YARN-7052
Project: Hadoop YARN
Issue Type: Bug
Components: yarn
Reporter: Eric Payne
In YARN-7051, we ran into a case where the preemption monitor thread hung with
no indication of why. This was because the preemption monitor is started by the
{{SchedulingExecutorService}} from {{SchedulingMonigor#serviceStart}}, and then
nothing ever gets the result of the future or allows it to throw an exception
if needed.
At least with {{HadoopExecutor}}, it will provide a
{{HadoopScheduledThreadPoolExecutor}} that logs the exception if one happens.
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