Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-3987

Avoid reading lookaside pages in truncate fast path

    XMLWordPrintable

Details

    • Bug
    • Status: Closed
    • Critical - P2
    • Resolution: Fixed
    • None
    • 3.6.4, 3.7.4, WT3.1.0
    • None
    • Storage Non-NYC 2018-04-09
    • v3.6

    Description

      In WT-3805, we made some changes intended to skip most lookaside data when truncating tables.

      This is a particular issue for MongoDB's oplog, which can have lookaside entries when there is replication lag, but should be truncated without re-reading the oplog pages or the lookaside pages containing those entries.

      It appears from internal testing that the changes in WT-3805 were not effective. That needs to be fixed, and we need a regression test for standalone WiredTiger that this isn't reintroduced.

      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: