[jira] [Resolved] (KAFKA-5201) Compacted topic could be misused to fill up a disk but deletion policy can't retain legitimate keys

["Edoardo Comar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edoardo Comar resolved KAFKA-5201.
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    Resolution: Not A Problem

> Compacted topic could be misused to fill up a disk but deletion policy can't retain legitimate keys 
> ----------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-5201
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5201
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Edoardo Comar
>
> Misuse of a topic with cleanup policy = compact
> could lead to a disk being filled if a misbehaving producer keeps producing messages with unique keys.
> The mixed cleanup policy compact,delete could be adopted, but would not guarantee that the latest "legitimate" keys will be kept.
> It would be desirable to have a cleanup policy that attempts to preserve messages with 'legitimate' keys
> This issue needs a KIP but I have no proposed solution yet at the time of writing.



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