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  1. Core Server
  2. SERVER-46435

Alternatives to using the lookaside-score for snapshot (history) window control [v4.2 only]

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    • Type: Icon: Task Task
    • Resolution: Won't Do
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: None
    • Component/s: Storage
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    • Storage Execution
    • Execution Team 2020-03-23, Execution Team 2020-04-20
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      A few potential solutions I can think of:
      1) Consider (dirty-bytes-in-cache / total-bytes-in-cache == 0.20 || bytes-in-use-in-cache / total-bytes-in-cache == 0.95) as cache pressure and reduce window size.
      2) Make the window size constant and only user adjustable.
      3) Make the window have a settable minimum value (new startup+runtime server parameter)

            Assignee:
            backlog-server-execution [DO NOT USE] Backlog - Storage Execution Team
            Reporter:
            dianna.hohensee@mongodb.com Dianna Hohensee (Inactive)
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              Updated:
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