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Posted to jira@kafka.apache.org by "David Arthur (Jira)" <ji...@apache.org> on 2023/02/13 20:16:00 UTC

[jira] [Updated] (KAFKA-14712) Confusing error when writing downgraded FeatureImage

     [ https://issues.apache.org/jira/browse/KAFKA-14712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Arthur updated KAFKA-14712:
---------------------------------
    Component/s: kraft

> Confusing error when writing downgraded FeatureImage
> ----------------------------------------------------
>
>                 Key: KAFKA-14712
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14712
>             Project: Kafka
>          Issue Type: Bug
>          Components: kraft
>            Reporter: David Arthur
>            Priority: Minor
>
> We have logic in ImageWriterOptions which forces any MetadataVersion lower than 3.3-IV0 to be treated as 3.0-IV1. This was because FeatureLevel records were not supported before 3.3-IV0. 
> When FeatureLevel is written at an older version, the "loss handler" produces an error message warning the user that some metadata is being lost.
> For example, when writing a FeatureImage with flag "foo" at MetadataVersion 3.2-IV0, we get a message like:
> > Metadata has been lost because the following could not be represented in metadata version 3.0-IV1: feature flag(s): foo
> This is confusing since we told the image builder to use MetadataVersion 3.2-IV0, but 3.0-IV1 appears in the text.



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