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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4842) "yarn logs" command should not require the appOwner argument
Date Fri, 06 May 2016 23:43:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-4842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15274930#comment-15274930

Vinod Kumar Vavilapalli commented on YARN-4842:

This is much closer. Couple of comments
 - When running into non-readable directories, we should explicitly catch AccessControlException,
print an error and return -1 instead of throwing exception - the exception will be quite confusing
to the users.
 - Need to fix the style issues, findbugs etc.

> "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
> 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
> Question - are there scenarios where users will still need to specify the -appOwner option?

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