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https://issues.apache.org/jira/browse/KAFKA-19893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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fujian updated KAFKA-19893:
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Attachment: image-2025-11-18-19-19-27-579.png
> Reduce redundant storage in remote tier (configurable)
> ------------------------------------------------------
>
> Key: KAFKA-19893
> URL: https://issues.apache.org/jira/browse/KAFKA-19893
> Project: Kafka
> Issue Type: Improvement
> Components: Tiered-Storage
> Reporter: fujian
> Assignee: fujian
> Priority: Major
> Attachments: image-2025-11-18-19-19-27-579.png
>
>
> Currently, Kafka uploads all non-active local log segments to remote storage
> even when they are still within the local retention period, resulting in
> redundant storage of the same data in both tiers. This wastes storage
> capacity and network bandwidth without providing immediate benefits, since
> reads during the retention window prioritize local data.
> However, some users rely on remote storage for real-time analytics and need
> the latest data to be available as soon as possible. Therefore, this
> optimization is offered as an optional configuration rather than the default
> behavior.
>
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