[jira] [Created] (KAFKA-4146) Kafka Stream ignores Serde exceptions leading to silently broken apps

["Elias Levy (JIRA)" <ji...@apache.org>]

Elias Levy created KAFKA-4146:
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             Summary: Kafka Stream ignores Serde exceptions leading to silently broken apps
                 Key: KAFKA-4146
                 URL: https://issues.apache.org/jira/browse/KAFKA-4146
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 0.10.0.1
            Reporter: Elias Levy
            Assignee: Guozhang Wang


It appears that Kafka Streams silently ignores Serde exceptions, leading to app that are silently broken.

E.g. if you make use of {{Stream.throough("topic")}} and the default Serde is inappropriate for the type, the app will silently drop the data in the floor without even the courtesy of printing a single error message.

At the very least an initial error message should be generated, with the option to generate messages for each such failure or a sampling of such failure. 



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