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  1. Core Server
  2. SERVER-19554

Return last visible optime in repldata metadata for all commands

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Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.1.7
    • Replication
    • None
    • Fully Compatible
    • RPL 8 08/31/15

    Description

      To support readAfterOptime, we can return the last visible optime in the repldata metadata. This value should be one of three things:

      • for read commands:
        • if read concern level majority was used for the read, the last visible optime should be the optime of the snapshot last used to return data for the query.
        • if read concern level local was used, the last visible optime should be the last written optime in the oplog at the time of the query's conclusion
      • for write commands:
        • the last visible optime should simply be the optime assigned to the write operation

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              matt.dannenberg Matt Dannenberg
              milkie@mongodb.com Eric Milkie
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                Updated:
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