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  1. Hadoop YARN
  2. YARN-4577

Enable aux services to have their own custom classpath/jar file

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.8.0
    • 2.9.0, 3.0.0-alpha1
    • None
    • None
    • Reviewed

    Description

      Right now, users have to add their jars to the NM classpath directly, thus put them on the system classloader. But if multiple versions of the plugin are present on the classpath, there is no control over which version actually gets loaded. Or if there are any conflicts between the dependencies introduced by the auxiliary service and the NM itself, they can break the NM, the auxiliary service, or both.

      The solution could be: to instantiate aux services using a classloader that is different from the system classloader.

      Attachments

        1. YARN-4577.poc.patch
          11 kB
          Xuan Gong
        2. YARN-4577.5.patch
          11 kB
          Xuan Gong
        3. YARN-4577.4.patch
          12 kB
          Xuan Gong
        4. YARN-4577.3.rebase.patch
          11 kB
          Xuan Gong
        5. YARN-4577.3.patch
          10 kB
          Xuan Gong
        6. YARN-4577.20160511.patch
          23 kB
          Xuan Gong
        7. YARN-4577.20160511.1.patch
          23 kB
          Xuan Gong
        8. YARN-4577.20160510.patch
          15 kB
          Xuan Gong
        9. YARN-4577.20160509.patch
          20 kB
          Xuan Gong
        10. YARN-4577.20160428.patch
          13 kB
          Xuan Gong
        11. YARN-4577.20160204.patch
          13 kB
          Xuan Gong
        12. YARN-4577.20160119.1.patch
          10 kB
          Xuan Gong
        13. YARN-4577.2.patch
          9 kB
          Xuan Gong
        14. YARN-4577.1.patch
          7 kB
          Xuan Gong

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. YARN-6412 aux-services classpath not documented

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          is depended upon by

          Bug - A problem which impairs or prevents the functions of the product. SPARK-12807 Spark External Shuffle not working in Hadoop clusters with Jackson 2.2.3

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. YARN-7598 Document how to use classpath isolation for aux-services in YARN

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. YARN-1151 Ability to configure auxiliary services from HDFS-based JAR files

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              xgong Xuan Gong
              xgong Xuan Gong
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              Dates

                Created:
                Updated:
                Resolved: