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  1. Core Server
  2. SERVER-68000

Optimize index used to support query-based reopening

    • Type: Icon: Improvement Improvement
    • Resolution: Won't Do
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: None
    • Component/s: None
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    • Execution Team 2022-11-28, Execution Team 2022-12-26
    • 5

      The index we build by default to support query-based reopening can lead to about a 10% decrease in throughput for bulk insert workloads, and up to 30% increase in median latency for individual inserts. We can probably improve this by building the index directly on the system.buckets collection over {meta: 1, control.min.time: 1} rather than using the standard rewrite ({meta: 1, control.min.time: 1, control.max.time: 1}) to decrease the frequency of index key updates.

      Additionally, we could potentially skip calculating index keys if we know the underlying fields haven't changed.

            Assignee:
            dan.larkin-york@mongodb.com Dan Larkin-York
            Reporter:
            dan.larkin-york@mongodb.com Dan Larkin-York
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              Updated:
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