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  1. Documentation
  2. DOCS-11002

Make oplog queries with point equality on ts field use getOplogStartHack (SERVER-29843)

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    Details

    • Type: Task
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.6.0-rc4
    • Component/s: manual, Server
    • Labels:
    • Last comment by Customer:
      true
    • Story Points:
      0.5
    • Sprint:
      KANBAN BUCKET

      Description

      Documentation Request Summary:

      No documentation summary in engineering ticket

      Engineering Ticket Description:

      Doing point queries on the ts field is slow in the oplog because the oplog does not have any indexes. WT has a hack that allows it to do binary search on the ts field but is only enabled when the query predicate has top level $gt/$gte.

      This is needed by retryable writes in order to do fast lookup on oplog entries when traversing through the write history within a transaction.

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              Assignee:
              andrew.aldridge Andrew Aldridge
              Reporter:
              kay.kim Kay Kim (Inactive)
              Participants:
              Last commenter:
              Andrew Aldridge Andrew Aldridge
              Docs Reviewer:
              Allison Reinheimer Moore Allison Reinheimer Moore
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                Dates

                Created:
                Updated:
                Resolved:
                Days since reply:
                3 years, 28 weeks ago
                Date of 1st Reply: