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From "Guillaume Nodet (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8571) Improve resource cleaning when shutting down
Date Fri, 06 Jul 2012 15:47:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408081#comment-13408081
] 

Guillaume Nodet commented on HADOOP-8571:
-----------------------------------------

Yes, I want to first fix the 1.0 branch to be ready for OSGi and then backport everything
to trunk.
I'll upload real patches and attach them the usual way (btw, I'm an ASF committer already,
so I don't think such a grant is really needed in that case anyway).

Related to the changes, I think the most problematic problem is related to CleanupQueue which
is a singleton with a thread wich is never stopped.  I think most of the other threads are
controlled somehow, but I need to include the following code when stopping the OSGi bundles
to correctly stop all the threads:

{code}
        FileSystem.closeAll();
        CleanupQueue.getInstance().stop();
        DefaultMetricsSystem.INSTANCE.shutdown();
{code}

                
> Improve resource cleaning when shutting down
> --------------------------------------------
>
>                 Key: HADOOP-8571
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8571
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 1.0.0, 2.0.0-alpha, 3.0.0
>            Reporter: Guillaume Nodet
>


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