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  1. IMPALA
  2. IMPALA-6194

Ensure all fragment instances notice cancellation

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Backend

      Description

      Currently queries can get stuck in an uncancellable state, e.g. when blocking on function calls or condition variables without periodically checking for cancellation. We should eliminate all those calls and make sure we don't re-introduce such issues. One option would be a watchdog to check that each fragment instance regularly calls RETURN_IF_CANCEL.

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              • Assignee:
                Unassigned
                Reporter:
                lv Lars Volker
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                Dates

                • Created:
                  Updated: