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

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

Jim Brennan created YARN-10312:
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             Summary: 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


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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