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  1. Hadoop YARN
  2. YARN-5436

Race in AsyncDispatcher can cause random test failures in Tez (probably YARN also)

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.9.0, 3.0.0-alpha1
    • None
    • None
    • Reviewed

    Description

      In YARN-2264, a race in DrainDispatcher was fixed. Unfortunately, it also exists in AsyncDispatcher (this was found and ignored in YARN-3878 but never documented...). In YARN-2991, another DrainDispatcher bug was fixed by letting DrainDispatcher reuse some AsyncDispatcher method because AsyncDispatcher doesn't have such issue. However, this shadows YARN-2264, and now similar race reappears in Tez unit tests (probably also YARN unit tests also).

      Attachments

        1. YARN-5436.1.patch
          4 kB
          Zhiyuan Yang
        2. YARN-5436.2.patch
          3 kB
          Zhiyuan Yang
        3. YARN-5436.3.patch
          3 kB
          Zhiyuan Yang
        4. YARN-5436.4.patch
          4 kB
          Zhiyuan Yang

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            zhiyuany Zhiyuan Yang
            zhiyuany Zhiyuan Yang
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              Created:
              Updated:
              Resolved:

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