[jira] [Resolved] (KAFKA-16863) Consider removing `default.` prefix for exception handler config

["Matthias J. Sax (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-16863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias J. Sax resolved KAFKA-16863.
-------------------------------------
    Resolution: Fixed

> Consider removing `default.` prefix for exception handler config
> ----------------------------------------------------------------
>
>                 Key: KAFKA-16863
>                 URL: https://issues.apache.org/jira/browse/KAFKA-16863
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Matthias J. Sax
>            Assignee: Muralidhar Basani
>            Priority: Trivial
>              Labels: kip
>             Fix For: 4.0.0
>
>
> Kafka Streams has a set of configs with `default.` prefix. The intent for the default-prefix is to make a distinction between, well the default, and in-place overwrites in the code. Eg, users can specify ts-extractors on a per-topic basis.
> However, for the deserialization- and production-exception handlers, no such overwrites are possible, and thus, `default.` does not really make sense, because there is just one handler overall. Via KIP-1033 we added a new processing-exception handler w/o a default-prefix, too.
> Thus, we should consider to deprecate the two existing configs names and add them back w/o the `default.` prefix.
> KIP-1056: [https://cwiki.apache.org/confluence/display/KAFKA/KIP-1056%3A+Remove+%60default.%60+prefix+for+exception+handler+StreamsConfig] 



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