Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-6624

Use transaction snapshot for applications performing eviction

    XMLWordPrintableJSON

Details

    • Task
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • WT10.0.0, 4.4.2, 4.9.0
    • None
    • None
    • 8
    • Storage - Ra 2020-09-07, Storage - Ra 2020-09-21, Storage - Ra 2020-10-05, Storage - Ra 2020-10-19

    Description

      Currently, eviction uses last_running transaction in visibility checks, this could sometimes lead to update restore eviction and might not ease much of cache pressure. Eviction could use snapshots to improve this situation. WT-6490 is to address this issue for internal eviction workers.
      Application threads performing eviction needs snapshot management as they might already have a snapshot.

      Attachments

        Issue Links

          has to be done after

          Improvement - An improvement or enhancement to an existing feature or task. WT-6490 Acquire snapshot for eviction threads

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

          Build Failure - WT-6725 Skip checking visibility for updates restored from disk

          • Major - P3 - Major loss of function.
          • Closed
          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. WT-6664 Cache eviction causes high latency during py-tpcc.

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

          Activity

            People

              haseeb.bokhari@mongodb.com Haseeb Bokhari (Inactive)
              vamsi.krishna@mongodb.com Vamsi Boyapati
              Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: