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  1. Hadoop Map/Reduce
  2. MAPREDUCE-7064

Flaky test TestTaskAttempt#testReducerCustomResourceTypes

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.1.0, 3.0.3
    • Component/s: client, test
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      The test TestTaskAttempt#testReducerCustomResourceType can occasionally fail with the following error:

      org.apache.hadoop.yarn.exceptions.ResourceNotFoundException: Unknown resource 'a-custom-resource'. Known resources are [name: memory-mb, units: Mi, type: COUNTABLE, value: 0, minimum allocation: 0, maximum allocation: 9223372036854775807, name: vcores, units: , type: COUNTABLE, value: 0, minimum allocation: 0, maximum allocation: 9223372036854775807]
      	at org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt.createReduceTaskAttemptImplForTest(TestTaskAttempt.java:434)
      	at org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt.testReducerCustomResourceTypes(TestTaskAttempt.java:1535)
      

      The root cause seems to be an interference from previous tests that start instance(s) of FailingAttemptsMRApp or FailingAttemptsDuringAssignedMRApp. When I disabled these tests, testReducerCustomResourceTypes always passed.

        Attachments

        1. MAPREDUCE-7064-001.patch
          6 kB
          Peter Bacsko
        2. MAPREDUCE-7064-002.patch
          6 kB
          Peter Bacsko
        3. MAPREDUCE-7064-003.patch
          6 kB
          Peter Bacsko

          Activity

            People

            • Assignee:
              pbacsko Peter Bacsko
              Reporter:
              pbacsko Peter Bacsko
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              Dates

              • Created:
                Updated:
                Resolved: