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Posted to jira@kafka.apache.org by "Lucas Bradstreet (Jira)" <ji...@apache.org> on 2020/12/20 15:01:00 UTC

[jira] [Commented] (KAFKA-10869) Gate topic IDs behind IBP 2.8

    [ https://issues.apache.org/jira/browse/KAFKA-10869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17252448#comment-17252448 ] 

Lucas Bradstreet commented on KAFKA-10869:
------------------------------------------

It looks like this won't be propagated by the LeaderAndIsrRequest until the IBP is bumped. Even so, we should still fix it before releasing 2.8 to reduce the danger of dropping topic IDs.

> Gate topic IDs behind IBP 2.8
> -----------------------------
>
>                 Key: KAFKA-10869
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10869
>             Project: Kafka
>          Issue Type: Sub-task
>    Affects Versions: 2.8.0
>            Reporter: Justine Olshan
>            Assignee: Justine Olshan
>            Priority: Blocker
>
> We want to do this so we don't lose topic IDs upon downgrades. If we downgrade and write to topic node in ZK, the topic ID will be lost. If the broker is upgraded again later, the topic IDs may not match.



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