Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-3435

Lookaside eviction should be able to save unstable updates

    XMLWordPrintable

Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.6.0-rc0, WT3.0.0
    • None

    Description

      During lookaside eviction, updates that are committed but not yet stable are included in pages written to data files. If a subsequent checkpoint includes such a page, then updates could become durable before they are stable.

      A test case for this would run with logging disabled, fix an oldest timestamp, then insert enough data to trigger lookaside eviction. Then take a checkpoint as of the pinned oldest timestamp. If the checkpoint contains any of the inserts then lookaside eviction has made changes durable too soon.

      Attachments

        Issue Links

          Activity

            People

              michael.cahill@mongodb.com Michael Cahill
              michael.cahill@mongodb.com Michael Cahill
              Votes:
              0 Vote for this issue
              Watchers:
              7 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: