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https://issues.apache.org/jira/browse/YARN-3950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643452#comment-14643452
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Jason Lowe commented on YARN-3950:
----------------------------------

+1 lgtm.  Will commit tomorrow if there are no objections.

> Add unique SHELL_ID environment variable to DistributedShell
> ------------------------------------------------------------
>
>                 Key: YARN-3950
>                 URL: https://issues.apache.org/jira/browse/YARN-3950
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: applications/distributed-shell
>    Affects Versions: 2.8.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>         Attachments: YARN-3950.001.patch, YARN-3950.002.patch
>
>
> As discussed in [this 
> comment|https://issues.apache.org/jira/browse/MAPREDUCE-6415?focusedCommentId=14636027&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14636027],
>  it would be useful to have a monotonically increasing and independent ID of 
> some kind that is unique per shell in the distributed shell program.
> We can do that by adding a SHELL_ID env var.



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