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  1. Core Server
  2. SERVER-38815

Expose an absolute dirty size to the eviction configuration parameters

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Details

    • New Feature
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 5.1.0-rc0
    • WiredTiger
    • Fully Compatible
    • v4.4, v4.2, v4.0, v3.6
    • Storage Engines 2019-01-28, Execution Team 2020-05-04, Execution Team 2020-05-18, Execution Team 2020-06-01, Execution Team 2021-09-06, Execution Team 2021-09-20

    Description

      Expose two configurable options that control the targeted and maximum levels of dirty data allowed in cache. The options will accept a floating-point value in gigabytes, like cacheSizeGB.

      eviction_dirty_target can be thought of as the targeted amount of dirty data allowed in cache. Anything larger, and worker threads start eviction.
      eviction_dirty_trigger can be thought of as a maximum amount of dirty data allowed in cache before application threads start eviction.

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          is depended on by

          New Feature - A new feature of the product, which has yet to be developed. SERVER-58144 Consider an absolute dirty size to the eviction configuration parameters as default

          • Major - P3 - Major loss of function.
          • Backlog
          related to

          Task - A task that needs to be done. WT-8030 Add sanity checks related to eviction trigger setting

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. WT-3632 Increase how granularly cache usage settings can be configured

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              josef.ahmad@mongodb.com Josef Ahmad
              dmitry.agranat@mongodb.com Dmitry Agranat
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              Dates

                Created:
                Updated:
                Resolved: