Matthias J. Sax created KAFKA-16863:
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Summary: 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
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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