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  1. Core Server
  2. SERVER-75294

Investigate slowness of sharded $lookup

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    • Type: Icon: Task Task
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: Querying
    • Labels:
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    • QO 2023-05-15, QO 2023-05-29, QO 2023-06-12, QO 2023-06-26, QO 2023-07-10, QO 2023-07-24, QO 2023-08-07, QO 2023-08-21

      When both collections are sharded, lookup queries are ~2x slower than for non-sharded collections.
      Let's understand what is the cause of this impact on performance.

            Assignee:
            hana.pearlman@mongodb.com Hana Pearlman
            Reporter:
            kateryna.kamenieva@mongodb.com Katya Kamenieva
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              Created:
              Updated:
              Resolved: