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Matthias J. Sax commented on KAFKA-16585: ----------------------------------------- Well, the use-case make sense, but the question is, how can the runtime ensure that the key is not changed? The idea of `FixedKeyProcessor` is to ensure that the key is not changed, but when we allow to set a key, you could set anything and the runtime cannot ensure that the key is "correct". It would be up the user-code to do the right thing... what it unclear from your use-case description is, why can't you use a regular `Processor`? > No way to forward message from punctuation method in the FixedKeyProcessor > -------------------------------------------------------------------------- > > Key: KAFKA-16585 > URL: https://issues.apache.org/jira/browse/KAFKA-16585 > Project: Kafka > Issue Type: Bug > Components: streams > Affects Versions: 3.6.2 > Reporter: Stanislav Spiridonov > Priority: Major > > The FixedKeyProcessorContext can forward only FixedKeyRecord. This class > doesn't have a public constructor and can be created based on existing > records. But such record usually is absent in the punctuation method. -- This message was sent by Atlassian Jira (v8.20.10#820010)