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https://issues.apache.org/jira/browse/HDFS-1840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021280#comment-13021280
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Suresh Srinivas commented on HDFS-1840:
---------------------------------------

Why is terminating the thread important?

> Terminate LeaseChecker when all writing files are closed.
> ---------------------------------------------------------
>
>                 Key: HDFS-1840
>                 URL: https://issues.apache.org/jira/browse/HDFS-1840
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h1840_20110418.patch
>
>
> In {{DFSClient}}, when there are files opened for write, a {{LeaseChecker}} 
> thread is started for updating the leases periodically.  However, it never 
> terminates when when all writing files are closed.

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