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https://issues.apache.org/jira/browse/KAFKA-16863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17850869#comment-17850869
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Matthias J. Sax commented on KAFKA-16863:
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I think `traffic_cost` was on purpose... But I really don't feel strong about
it at all.
In general, I am always in favor to cleanup stuff; we also just did KIP-1020.
Not sure if we should do a single KIP though. I can become very convoluted
quickly. I would rather to multiple smaller KIPs?
Not sure what other issue there might be? Do you have a list?
> 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
> Priority: Trivial
> Labels: need-kip
>
> 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.
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