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  1. Core Server
  2. SERVER-53461

totalDataSizeGroupedBytesEstimate stats for $group should report total bytes processed

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.9.0
    • Affects Version/s: 4.9.0
    • Component/s: Aggregation Framework
    • None
    • Fully Compatible
    • ALL
    • Query 2021-01-11, Query 2021-01-25

      Execution stat totalDataSizeGroupedBytesEstimate for $group stage reports the memory usage and not the total output bytes processed by $group pipeline.

      The stat is misleading in a sense that the actual data processed by $group stage will come out to be less when some data has been spilled to disk.

      In this ticket, we should fix this.

            Assignee:
            rishab.joshi@mongodb.com Rishab Joshi (Inactive)
            Reporter:
            rishab.joshi@mongodb.com Rishab Joshi (Inactive)
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              Created:
              Updated:
              Resolved: