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Posted to jira@kafka.apache.org by "Matthias J. Sax (Jira)" <ji...@apache.org> on 2026/03/05 20:57:00 UTC

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

     [ https://issues.apache.org/jira/browse/KAFKA-20262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias J. Sax updated KAFKA-20262:
------------------------------------
    Component/s: streams

> 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
>          Components: streams
>            Reporter: TengYao Chi
>            Assignee: TengYao Chi
>            Priority: Major
>
> 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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