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https://issues.apache.org/jira/browse/STORM-2724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16157015#comment-16157015
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Jungtaek Lim commented on STORM-2724:
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This issue affects all 1.x version lines.
> ExecutorService in WaterMarkEventGenerator never shutdown
> ---------------------------------------------------------
>
> Key: STORM-2724
> URL: https://issues.apache.org/jira/browse/STORM-2724
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-client, storm-core
> Affects Versions: 1.0.4, 1.1.1
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
>
> I have seen a topology with event time windowing never terminated on local
> mode. While looking into detail on thread dump I found only one non-daemon
> thread prevents process to be not finished: executorService in
> WaterMarkEventGenerator.
> Btw, I dumped thread via jstack but impossible to find from jstack result
> because it doesn't have thread factory hence thread name is pool-*.
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