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  1. Apache Avro
  2. AVRO-1331

Java reader backwards-compatibility breakage

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.7.5
    • Component/s: java
    • Labels:
      None

      Description

      For some cases where we encode Avro data with Avro 1.7.4, it is not readable with Avro 1.7.5-SNAPSHOT post AVRO-1295: the Java decoder is unable to discover the root definitions

      Among the properties of (some) schemas that trigger this failure:

      • an explicit empty string in the root namespace and
      • uses other namespaces elsewhere in the schema,
      • has a recursive reference to the root

      A sample schema and a sample datafile with one example encoded with that schema are attached.

      This datafile cannot be read with Java deserializers (and I believe that the schema cannot be parsed by the Java schema parser).

        Attachments

        1. AVRO-1331.patch
          1 kB
          Doug Cutting
        2. stripped-snipped.avro
          0.8 kB
          Jeremy Kahn
        3. stripped-snipped.schema
          2 kB
          Jeremy Kahn

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              • Assignee:
                cutting Doug Cutting
                Reporter:
                trochee Jeremy Kahn
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                Dates

                • Created:
                  Updated:
                  Resolved: