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  1. Hadoop YARN
  2. YARN-3434

Interaction between reservations and userlimit can result in significant ULF violation

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    Description

      ULF was set to 1.0
      User was able to consume 1.4X queue capacity.
      It looks like when this application launched, it reserved about 1000 containers, each 8G each, within about 5 seconds. I think this allowed the logic in assignToUser() to allow the userlimit to be surpassed.

      Attachments

        1. YARN-3434-branch2.7.patch
          33 kB
          Thomas Graves
        2. YARN-3434.patch
          34 kB
          Thomas Graves
        3. YARN-3434.patch
          35 kB
          Thomas Graves
        4. YARN-3434.patch
          32 kB
          Thomas Graves
        5. YARN-3434.patch
          35 kB
          Thomas Graves
        6. YARN-3434.patch
          35 kB
          Thomas Graves
        7. YARN-3434.patch
          35 kB
          Thomas Graves
        8. YARN-3434.patch
          35 kB
          Thomas Graves

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. YARN-4610 Reservations continue looking for one app causes other apps to starve

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          Activity

            People

              tgraves Thomas Graves
              tgraves Thomas Graves
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              Dates

                Created:
                Updated:
                Resolved: