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https://issues.apache.org/jira/browse/SPARK-12486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai updated SPARK-12486:
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Assignee: Nong Li (was: Apache Spark)
> Executors are not always terminated successfully by the worker.
> ---------------------------------------------------------------
>
> Key: SPARK-12486
> URL: https://issues.apache.org/jira/browse/SPARK-12486
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Nong Li
> Assignee: Nong Li
>
> There are cases when the executor is not killed successfully by the worker.
> One way this can happen is if the executor is in a bad state, fails to
> heartbeat and the master tells the worker to kill the executor. The executor
> is in such a bad state that the kill request is ignored. This seems to be
> able to happen if the executor is in heavy GC.
> The cause of this is that the Process.destroy() API is not forceful enough.
> In Java8, a new API, destroyForcibly() was added. We should use that if
> available.
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