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  1. Mesos
  2. MESOS-3449

Expand the range of integer precision in json <-> protobuf conversions to include unsigned integers

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 0.25.0
    • Fix Version/s: None
    • Component/s: stout
    • Story Points:
      5

      Description

      The previous changes (MESOS-3345) to support integer precision when converting JSON <-> Protobuf did not support precision for unsigned integers between INT64_MAX and UINT64_MAX. (There's some loss, but the conversion is still as good/bad as it was with doubles.)

      This problem is due to a limitation in the JSON parsing library we use (PicoJSON), which parses integers as int64_t.

      Some possible solutions or things to investigate:

      • We can patch PicoJSON to parse some large values as uint64_t.
      • We can investigate using another parsing library.
      • If we want extra precision beyond 64 or 80 bits per double, one possibility is the GMP library. We'd still need to change the parsing library though.

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              • Assignee:
                Unassigned
                Reporter:
                kaysoky Joseph Wu
                Shepherd:
                Joris Van Remoortere
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                Dates

                • Created:
                  Updated: