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  1. Core Server
  2. SERVER-41165

Transaction participants don't need to do a noop write before committing a read-only transaction

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    • Backwards Compatibility:
      Fully Compatible

      Description

      Currently, TransactionParticipant::commitUnpreparedTransaction does a noop write after committing a read-only transaction, so that waiting for writeConcern waits for a Timestamp after the transaction's read Timestamp, to respect the isolation level requested by the client's writeConcern.

      Instead, it can just wait for writeConcern of the read Timestamp.

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          depends on

          Task - A task that needs to be done. SERVER-39364 Audit uses of setLastOpToSystemLastOpTime

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

          Task - A task that needs to be done. SERVER-39489 Clarify optime creation in TransactionParticipant

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

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                • Created:
                  Updated: