[jira] [Commented] (KAFKA-18838) Fix ArbitraryMemoryRecords so that they are always invalid

["Yunseop Eom (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-18838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18101087#comment-18101087 ] 

Yunseop Eom commented on KAFKA-18838:
-------------------------------------

Update on PR #22947: https://github.com/apache/kafka/pull/22947

The PR makes arbitrary memory-record fixtures deterministically invalid instead of relying on random bytes occasionally producing a valid record set. It preserves payload variation, matches the declared buffer length, and uses an unsupported magic value to enforce the malformed-input contract.

Validation completed with the Raft test suite, including ArbitraryMemoryRecordsTest#testGeneratedRecordsAreAlwaysInvalid, and git diff --check. The PR is open and awaiting review.

> Fix ArbitraryMemoryRecords so that they are always invalid
> ----------------------------------------------------------
>
>                 Key: KAFKA-18838
>                 URL: https://issues.apache.org/jira/browse/KAFKA-18838
>             Project: Kafka
>          Issue Type: Task
>          Components: clients, kraft
>            Reporter: José Armando García Sancio
>            Priority: Minor
>
> The arbitrary memory records generates random bytes. It is possible that the generated random bytes are actually a valid memory records.
> We can also improve the implementation so that is generate interesting memory records and not just completely random bytes.



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