[GitHub] spark pull request: [SPARK-11354] [Web UI] Expose custom log4j fil...

[JoshRosen <gi...@git.apache.org>]

Github user JoshRosen commented on the pull request:

    https://github.com/apache/spark/pull/9321#issuecomment-171450858
  
    I agree that it's not okay to allow arbitrary file reads inside of the worker directory. What _might_ be okay is a configuration mechanism which lets users register specific custom log files to be displayed in the UI (e.g. an explicit whitelist)


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