[jira] [Created] (KAFKA-20262) Changelog tombstone records drop custom headers when using headers-aware state stores

["TengYao Chi (Jira)" <ji...@apache.org>]

TengYao Chi created KAFKA-20262:
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             Summary: Changelog tombstone records drop custom headers when using headers-aware state stores
                 Key: KAFKA-20262
                 URL: https://issues.apache.org/jira/browse/KAFKA-20262
             Project: Kafka
          Issue Type: Sub-task
            Reporter: TengYao Chi
            Assignee: TengYao Chi


When utilizing headers-aware state stores in Kafka Streams, there is an inconsistency in how tombstone records (emitted via {{delete(key)}} or {{{}put(key, null){}}}) are handled during changelog serialization.

Specifically, when a tombstone is written to the changelog topic through {{{}InternalProcessorContext{}}}, any custom headers associated with the key's metadata appear to be dropped.



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