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Posted to jira@kafka.apache.org by "PoAn Yang (Jira)" <ji...@apache.org> on 2026/01/14 11:13:00 UTC

[jira] [Updated] (KAFKA-14056) Test reading of old messages formats in ZK-to-KRaft upgrade test

     [ https://issues.apache.org/jira/browse/KAFKA-14056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

PoAn Yang updated KAFKA-14056:
------------------------------
    Fix Version/s:     (was: 3.9.2)

> Test reading of old messages formats in ZK-to-KRaft upgrade test
> ----------------------------------------------------------------
>
>                 Key: KAFKA-14056
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14056
>             Project: Kafka
>          Issue Type: Task
>          Components: kraft
>    Affects Versions: 3.9.0
>            Reporter: Ron Dagostino
>            Assignee: Dhiyaneshwaran Radhakrishnan
>            Priority: Blocker
>
> Whenever we support ZK-to-KRaft upgrade we must confirm that we can still read messages with an older message format.  We can no longer write such messages as of IBP 3.0 (which is the minimum supported with KRaft), but we must still support reading such messages with KRaft.  Therefore, the only way to test this would be to write the messages with a non-KRaft cluster, upgrade to KRaft, and then confirm we can read those messages.



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