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  1. IMPALA
  2. IMPALA-3393

Report thread wake up interval is not well distributed

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Later
    • Impala 2.5.0
    • None
    • Backend
    • None

    Description

      https://github.com/cloudera/Impala/blob/cdh5-trunk/be/src/runtime/plan-fragment-executor.cc#L398

      We take an integer from 0 to 4. so if there are 200 nodes then ~40 of them will report at the same time every 5 seconds. This does not take into account fragment start time is basically random...

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              Unassigned Unassigned
              HuaisiXu Huaisi Xu
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                Updated:
                Resolved: