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https://issues.apache.org/jira/browse/HADOOP-17257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17193954#comment-17193954
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zhuqi commented on HADOOP-17257:
--------------------------------

cc [~boky01] 

Yeah , but i am not the contributor of hadoop-common module, so i add open a 
new issue, and i fix the condition that when the datanode is not running, the 
origin source code also show cat error.

Thanks.

> pid file delete when service stop (secure datanode ) show cat no directory
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-17257
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17257
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts, security
>    Affects Versions: 3.4.0
>            Reporter: zhuqi
>            Priority: Major
>         Attachments: HADOOP-17257-0.0.1.patch
>
>
> when stop running secure datanode
> show cat no directory .
>  
> when stop unrunning secure datanode
> also show cat no pid directory
>  
> It's both unreasonable



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