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https://issues.apache.org/jira/browse/YARN-4842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15275427#comment-15275427
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Xuan Gong commented on YARN-4842:
---------------------------------
The findbug warning and checkstyle issue are not related to this patch.
> "yarn logs" command should not require the appOwner argument
> ------------------------------------------------------------
>
> Key: YARN-4842
> URL: https://issues.apache.org/jira/browse/YARN-4842
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Ram Venkatesh
> Assignee: Xuan Gong
> Attachments: YARN-4842.1.patch, YARN-4842.2.patch, YARN-4842.3.patch,
> YARN-4842.4.patch, YARN-4842.5.patch
>
>
> The yarn logs command is among the most common ways to troubleshoot yarn app
> failures, especially by an admin.
> Currently if you run the command as a user different from the job owner, the
> command will fail with a subtle message that it could not find the app under
> the running user's name. This can be confusing especially to new admins.
> We can figure out the job owner from the app report returned by the RM or the
> AHS, or, by looking for the app directory using a glob pattern, so in most
> cases this error can be avoided.
> Question - are there scenarios where users will still need to specify the
> -appOwner option?
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