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Type: Bug
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Resolution: Fixed
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Priority: Major - P3
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Affects Version/s: None
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Component/s: Replication, Storage
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Fully Compatible
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ALL
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Repl 2019-04-08, Repl 2019-04-22
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 inĀ WT-4704.
- is related to
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SERVER-35449 Return the oldest read timestamp used by any open transaction
- Closed
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SERVER-35713 Add oldest open transaction read timestamp to serverStatus output
- Closed
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WT-4154 Surface the oldest read timestamp
- Closed
- related to
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WT-4704 Add statistic tracking oldest active read timestamp
- Closed