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https://issues.apache.org/jira/browse/HADOOP-9318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581663#comment-13581663
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Chris Nauroth commented on HADOOP-9318:
---------------------------------------

+1 for the patch.

Thanks for providing the additional diagnostics.  I applied the patch to trunk, 
built a distro, and tried various ways of stopping namenode.  I did this on 
Mac, Ubuntu with OpenJDK, and Windows.  Everything worked fine.

I was hoping to test on a JVM that didn't have those sun.misc classes, but the 
classes are present on all of my environments.  I fully expect the catch clause 
would handle it fine though by catching {{ExceptionInInitializerError}}.

                
> when exiting on a signal, print the signal name first
> -----------------------------------------------------
>
>                 Key: HADOOP-9318
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9318
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.0.4-beta
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HADOOP-9318.001.patch
>
>
> On UNIX, it would be nice to know when a Hadoop daemon had exited on a 
> signal.  For example, if a daemon exited because the system administrator 
> sent SIGTERM (i.e. {{killall java}}), it would be nice to know that.  
> Although some of this can be deduced from context and {{SHUTDOWN_MSG}}, it 
> would be nice to have it be explicit.

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