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  1. IMPALA
  2. IMPALA-3377

Make TransmitData() RPC path non-blocking in the face of cancellation

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: Impala 2.5.0
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:
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      Description

      TransmitData() calls currently take 120s to time out. This led to the failure of test_metrics_are_zero reported in IMPALA-3327. As a workaround, "impala-server.backends.client-cache.clients-in-use" was removed from the list of metrics to check.

      As a permanent solution we should be able to prevent connections getting into this 'zombie' mode if they do periodically return-and-check-for-cancel.

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            • Assignee:
              henryr Henry Robinson
              Reporter:
              lv Lars Volker
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              • Created:
                Updated:
                Resolved: