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https://issues.apache.org/jira/browse/HDFS-15806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17284467#comment-17284467
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Ayush Saxena commented on HDFS-15806:
-------------------------------------

Thanx [~LiJinglun] for the fix, changes sounds good. Just to know, before this 
was there some kind of memory leak, or these threads were getting cleared later?

Secondly, for the shutdown is there some specific order, or it is just random, 
just to know why
|278|threadShutDown(this);|

this is at the start not at the end, or it doesn't bother as such?

> DeadNodeDetector should close all the threads when it is closed.
> ----------------------------------------------------------------
>
>                 Key: HDFS-15806
>                 URL: https://issues.apache.org/jira/browse/HDFS-15806
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Jinglun
>            Assignee: Jinglun
>            Priority: Major
>         Attachments: HDFS-15806.001.patch
>
>
> The DeadNodeDetector doesn't close all the threads when it is closed. This 
> Jira trys to fix this.



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