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  1. WiredTiger
  2. WT-4090

Low priority reads

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.6.9, 4.0.3, 4.1.3, WT3.2.0
    • Component/s: None
    • Labels:

      Description

      For some workloads that read a lot of data once, it would be helpful if the reads could avoid trashing the cache. That is, an application could specify read_once=true or similar to WT_SESSION::open_cursor, and the reads via that cursor would set the WT_READ_DONT_NEED flag internally.

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          is depended on by

          New Feature - A new feature of the product, which has yet to be developed. SERVER-36631 Have the storage engine interface expose a reduced cache footprint read API

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-36068 Expose a user-accessible cursor option to avoid caching data from reads

          • Major - P3 - Major loss of function.
          • Closed
          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. WT-2452 Implement a mechanism that gives priority in cache to some tables

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

          Improvement - An improvement or enhancement to an existing feature or task. WT-2452 Implement a mechanism that gives priority in cache to some tables

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

            Activity

              People

              Assignee:
              daniel.gottlieb Daniel Gottlieb
              Reporter:
              michael.cahill Michael Cahill
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                Dates

                Created:
                Updated:
                Resolved: