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  1. Hadoop YARN
  2. YARN-5774

MR Job stuck in ACCEPTED status without any progress in Fair Scheduler if set yarn.scheduler.minimum-allocation-mb to 0.

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      Description

      MR Job stuck in ACCEPTED status without any progress in Fair Scheduler because there is no resource request for the AM. This happened when you configure yarn.scheduler.minimum-allocation-mb to zero.

      The problem is in the code used by both Capacity Scheduler and Fair Scheduler. scheduler.increment-allocation-mb is a concept in FS, but not CS. So the common code in class RMAppManager passes the yarn.scheduler.minimum-allocation-mb as incremental one because there is no incremental one for CS when it tried to normalize the resource requests.

           SchedulerUtils.normalizeRequest(amReq, scheduler.getResourceCalculator(),
                scheduler.getClusterResource(),
                scheduler.getMinimumResourceCapability(),
                scheduler.getMaximumResourceCapability(),
                scheduler.getMinimumResourceCapability());  --> incrementResource should be passed here.
      

        Attachments

        1. YARN-5774.001.patch
          16 kB
          Yufei Gu
        2. YARN-5774.002.patch
          17 kB
          Yufei Gu
        3. YARN-5774.003.patch
          17 kB
          Yufei Gu
        4. YARN-5774.004.patch
          23 kB
          Yufei Gu
        5. YARN-5774.005.patch
          34 kB
          Yufei Gu
        6. YARN-5774.006.patch
          36 kB
          Yufei Gu
        7. YARN-5774.007.patch
          38 kB
          Yufei Gu

          Activity

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            • Assignee:
              yufeigu Yufei Gu
              Reporter:
              yufeigu Yufei Gu
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              • Created:
                Updated:
                Resolved: