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  1. IMPALA
  2. IMPALA-5710

Stress test is not aware of aggregation passthrough under memory pressure

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    • Improvement
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • None
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    • Infrastructure
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    Description

      The stress test currently detects whether a query spilled to disk or not. However, it doesn't detect other code paths that are triggered by memory pressure, e.g. an aggregation passing through all of its rows.

      It's not clear to me exactly what the right thing to do here is, but it might be useful to change the reporting or behaviour here, particularly since as part of IMPALA-3200 we're not reserving any memory for passthrough aggregations.

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          relates to

          Sub-task - The sub-task of the issue IMPALA-5713 Consider always reserving memory for grouping pre-aggregations

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              tarmstrong Tim Armstrong
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              Dates

                Created:
                Updated: