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https://issues.apache.org/jira/browse/SPARK-11999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Or updated SPARK-11999:
------------------------------
    Assignee: Shixiong Zhu

> ThreadUtils.newDaemonCachedThreadPool(prefix, maxThreadNumber)  has 
> unexpected behavior
> ---------------------------------------------------------------------------------------
>
>                 Key: SPARK-11999
>                 URL: https://issues.apache.org/jira/browse/SPARK-11999
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.4.1, 1.5.2, 1.6.0
>            Reporter: Shixiong Zhu
>            Assignee: Shixiong Zhu
>
> Currently, ThreadUtils.newDaemonCachedThreadPool(prefix, maxThreadNumber) 
> will throw RejectedExecutionException, if there are already `maxThreadNumber` 
> busy threads and we submit a new task. It's because `SynchronousQueue` cannot 
> cache any task.



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