[jira] [Created] (SPARK-21714) SparkSubmit in Yarn Client mode downloads remote files and then reuploads them again

["Thomas Graves (JIRA)" <ji...@apache.org>]

Thomas Graves created SPARK-21714:
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             Summary: SparkSubmit in Yarn Client mode downloads remote files and then reuploads them again
                 Key: SPARK-21714
                 URL: https://issues.apache.org/jira/browse/SPARK-21714
             Project: Spark
          Issue Type: Bug
          Components: Spark Submit
    Affects Versions: 2.2.0
            Reporter: Thomas Graves
            Priority: Critical


SPARK-10643 added the ability for spark-submit to download remote file in client mode.

However in yarn mode this introduced a bug where it downloads them for the client but then yarn client just reuploads them to HDFS and uses them again. This should not happen when the remote file is HDFS.  This is wasting resources and its defeating the  distributed cache because if the original object was public it would have been shared by many users. By us downloading and reuploading, it becomes private.



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