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  1. IMPALA
  2. IMPALA-1131

"Total" time counter does not capture all the network transmit time

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 1.3
    • Fix Version/s: Impala 1.4.1
    • Component/s: None
    • Labels:
      None

      Description

      In PlanFragmentExecutor::OpenInternal(), the time spent in sink_->Close(runtime_state()) was not captured by the total_time_counter().

      Because the Send() is async, by the time we call Close(), the data might not have sent thought yet and we might spent a considerable amount of time on Close().

      This bug makes it quite difficult to diagnose network related query performance.

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            • Assignee:
              nong_impala_60e1 Nong Li
              Reporter:
              alan@cloudera.com Alan Choi
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              Dates

              • Created:
                Updated:
                Resolved: