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  1. Core Server
  2. SERVER-40337

Remove oldestOpenUnpreparedReadTimestamp

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    • Fully Compatible
    • ALL
    • Repl 2019-04-08, Repl 2019-04-22

    Description

      The serverStatus metric oldestOpenUnpreparedReadTimestamp is named to represent the oldest read timestamp of any unprepared transaction. However, as described in WT-4154, this value is the oldest_active_reader, which is the minimum read timestamp of all active readers. Timestamped reads can occur without multi-document transactions, e.g. all secondary reads, so this value exists even when the server has no open, unprepared transactions. We will remove this serverStatus metrics, and the oldest active read timestamp will be added to WT statistics in WT-4704.

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          is documented by

          Task - A task that needs to be done. DOCS-12628 Docs for SERVER-40337: Remove oldestOpenUnpreparedReadTimestamp

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          Task - A task that needs to be done. SERVER-35449 Return the oldest read timestamp used by any open transaction

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

          Task - A task that needs to be done. SERVER-35713 Add oldest open transaction read timestamp to serverStatus output

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

          Improvement - An improvement or enhancement to an existing feature or task. WT-4154 Surface the oldest read timestamp

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

          Improvement - An improvement or enhancement to an existing feature or task. WT-4704 Add statistic tracking oldest active read timestamp

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

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            People

              lingzhi.deng@mongodb.com Lingzhi Deng
              tess.avitabile@mongodb.com Tess Avitabile (Inactive)
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                Updated:
                Resolved: