[jira] [Assigned] (YARN-10312) Add support for yarn logs -logFile to retain backward compatibility

["Jim Brennan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-10312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jim Brennan reassigned YARN-10312:
----------------------------------

    Attachment: YARN-10312.001.patch
      Assignee: Jim Brennan

> Add support for yarn logs -logFile to retain backward compatibility
> -------------------------------------------------------------------
>
>                 Key: YARN-10312
>                 URL: https://issues.apache.org/jira/browse/YARN-10312
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.10.0, 3.4.1
>            Reporter: Jim Brennan
>            Assignee: Jim Brennan
>            Priority: Major
>              Labels: compatibility
>         Attachments: YARN-10312.001.patch
>
>
> The YARN CLI logs command line option {{-logFiles}} was changed to {{-log_files}}  in 2.9 and later releases.   This change was made as part of YARN-5363.
> Verizon Media is in the process of moving from Hadoop-2.8 to Hadoop-2.10, and while testing integration with Spark, we ran into this issue.   We are concerned that we will run into more cases of this as we roll out to production, and rather than break user scripts, we'd prefer to add {{-logFiles}} as an alias of {{-log_files}}.  If both are provided, {{-logFiles}} will be ignored.



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