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https://issues.apache.org/jira/browse/DRILL-466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13963241#comment-13963241
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Bhallamudi Venkata Siva Kamesh commented on DRILL-466:
------------------------------------------------------

I submitted a logical plan using submit_plan, which got failed and the process 
got hanged.
By taking the thread dump, process got hanged at

{noformat}
"WorkManager Event Thread" daemon prio=5 tid=0x00007faa01b44800 nid=0x6b07 
waiting on condition [0x0000000117531000]
        at 
org.apache.drill.exec.work.WorkManager$EventThread.run(WorkManager.java:171)
{noformat}

I think, it got hanged because EventThread in WorkManager.java defined as 
daemon thread and it runs forever even though process exits.

> submit_plan failures does not terminate the program
> ---------------------------------------------------
>
>                 Key: DRILL-466
>                 URL: https://issues.apache.org/jira/browse/DRILL-466
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Zhiyong Liu
>
> Run submit_plan that will fail.
> The program does not terminate.  You have to use Control-C to terminate it.



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