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  1. Core Server
  2. SERVER-42205

Raise the snapshot window's cache pressure threshold from 50 to 95

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.2.1, 4.3.1
    • Component/s: Storage
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Backport Requested:
      v4.2
    • Sprint:
      Execution Team 2019-07-29, Execution Team 2019-08-12

      Description

      WT doesn't trigger eviction until the LAS score reaches a high value. I think 95 is safer for the snapshot window cache pressure threshold, so that we do not stop servicing 'snapshot' read concern operations while the cache pressure remains unchanged because WT doesn't think it high enough for concern yet.

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            Assignee:
            dianna.hohensee Dianna Hohensee
            Reporter:
            dianna.hohensee Dianna Hohensee
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              Updated:
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