Possible double counting of indexes in "indexStats" statistics

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • 8.3.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Catalog and Routing
    • Fully Compatible
    • ALL
    • v8.0
    • CAR Team 2026-01-05, CAR Team 2026-01-19, CAR Team 2026-02-02, CAR Team 2026-02-16, CAR Team 2026-03-02, CAR Team 2026-03-16
    • 2
    • 🟦 Shard Catalog
    • None
    • None
    • None
    • None
    • None
    • None

      In a recent customer HELP ticket, I observed in the FTDC that the number of indexes reported in ss indexStats count and related statistics, jumps from X to 2X to 3X to 4X on successive step downs from primary to secondary, and resets to X on restart.

      louis.williams@mongodb.com suggested this might indicate a bug that double counts indexes in replication rollback.

            Assignee:
            Yujin Kang Park
            Reporter:
            Keith Smith
            Votes:
            1 Vote for this issue
            Watchers:
            15 Start watching this issue

              Created:
              Updated:
              Resolved: