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  1. IMPALA
  2. IMPALA-5807

Fix possibility of concurrent status reports

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • Impala 2.10.0
    • None
    • Backend
    • None
    • ghx-label-9

    Description

      The coordinator may receive multiple backend status reports concurrently for a few reasons:

      • The backend believes that sending the report failed and retries when in fact the first report did reach the coordinator.
      • A report is sent by the reporting thread at the same time that one is sent by Finalize().
      • Multiple fragments from the same backend send reports at the same time.

      This has the possibility of causing races. One such race was fixed in IMPALA-5749, but we should deal with the underlying issue of concurrent reports in a more complete way, rather than just trying to fix individual races as they become apparent.

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            Unassigned Unassigned
            twmarshall Thomas Tauber-Marshall
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            Dates

              Created:
              Updated: