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  1. Hadoop YARN
  2. YARN-27

Failed refreshQueues due to misconfiguration prevents further refreshing of queues

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 2.0.2-alpha, 0.23.3
    • None
    • None

    Description

      Stumbled upon this problem while refreshing queues with incorrect configuration. The exact scenario was:
      1. Added a new queue "newQueue" without defining its capacity.
      2. "bin/mapred queue -refreshQueues" fails correctly with "Illegal capacity of -1 for queue root.newQueue"
      3. However, after defining the capacity of "newQueue" followed by a second "bin/mapred queue -refreshQueues" throws "org.apache.hadoop.metrics2.MetricsException: Metrics source QueueMetrics,q0=root,q1=newQueue already exists!" Also see Hadoop:name=QueueMetrics,q0=root,q1=newQueue,service=ResourceManager metrics being available even though the queue was not added.

      The expected behavior would be to refresh the queues correctly and allow addition of "newQueue".

      Attachments

        1. YARN-27.patch
          9 kB
          Arun Murthy

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            acmurthy Arun Murthy
            rramya Ramya Sunil
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              Updated:
              Resolved:

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