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  1. Hadoop YARN
  2. YARN-2972

DelegationTokenRenewer thread pool never expands

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.3.0
    • Fix Version/s: 2.7.0
    • Component/s: resourcemanager
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      DelegationTokenRenewer uses a thread pool to manage token renewals. The number of threads is configurable, but unfortunately the pool never expands beyond the hardcoded initial 5 threads because we are using an unbounded LinkedBlockingQueue. ThreadPoolExecutor only grows the thread pool beyond the core size when the specified queue is full.

        Attachments

        1. YARN-2972.001.patch
          1 kB
          Jason Darrell Lowe

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              • Assignee:
                jlowe Jason Darrell Lowe
                Reporter:
                jlowe Jason Darrell Lowe
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