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https://issues.apache.org/jira/browse/YARN-5621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15470494#comment-15470494
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Jian He commented on YARN-5621:
-------------------------------

Because it is a actually a script file and can also be used for other 
customized commands. What security reasons are you referring to? It is no 
difference than running current container launch script.

> Support LinuxContainerExecutor to create symlinks
> -------------------------------------------------
>
>                 Key: YARN-5621
>                 URL: https://issues.apache.org/jira/browse/YARN-5621
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-5621.1.patch, YARN-5621.2.patch
>
>
> When new resources are localized, new symlink needs to be created for the 
> localized resource. This is the change for the LinuxContainerExecutor to 
> create the symlinks.



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