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  1. Kafka
  2. KAFKA-5245

KStream builder should capture serdes

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 0.10.2.0, 0.10.2.1
    • Fix Version/s: None
    • Component/s: streams
    • Labels:

      Description

      Even if one specifies a serdes in `builder.stream`, later a call to `groupByKey` may require the serdes again if it differs from the configured streams app serdes. The preferred behavior is that if no serdes is provided to `groupByKey`, it should use whatever was provided in `builder.stream` and not what was in the app.

      From the current docs:
      “When to set explicit serdes: Variants of groupByKey exist to override the configured default serdes of your application, which you must do if the key and/or value types of the resulting KGroupedStream do not match the configured default serdes.”

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            • Assignee:
              Unassigned
              Reporter:
              yevabyzek Yeva Byzek
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              Dates

              • Created:
                Updated: