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https://issues.apache.org/jira/browse/FLINK-5759?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen closed FLINK-5759.
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> Set an UncaughtExceptionHandler for all Thread Pools in JobManager
> ------------------------------------------------------------------
>
> Key: FLINK-5759
> URL: https://issues.apache.org/jira/browse/FLINK-5759
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Affects Versions: 1.2.0
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.3.0
>
>
> Currently, the thread pools of the {{JobManager}} do not have any
> {{UncaughtExceptionHandler}}.
> While uncaught exceptions are rare (Flink handles exceptions aggressively in
> most places), when exceptions slip through in these threads (which execute
> future responses and delayed actions), the JobManager may be in an
> inconsistent state and not function properly any more.
> We should add a handler that results in a process kill in the case of
> uncaught exceptions. Letting the JobManager be restarted by the respective
> cluster framework is the only guaranteed way to be safe.
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