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https://issues.apache.org/jira/browse/KAFKA-19689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steven Schlansker resolved KAFKA-19689.
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Resolution: Invalid
I apologize, this was actually a correlated change on our end, not a regression
in Kafka Streams.
> TopologyTestDriver spends most of its time forcing changes to disk with
> persistent state stores
> -----------------------------------------------------------------------------------------------
>
> Key: KAFKA-19689
> URL: https://issues.apache.org/jira/browse/KAFKA-19689
> Project: Kafka
> Issue Type: Improvement
> Components: streams-test-utils
> Affects Versions: 4.1.0
> Reporter: Steven Schlansker
> Priority: Minor
> Attachments: image-2025-09-08-14-07-05-768.png,
> image-2025-09-08-14-22-29-514.png
>
>
> We are using TopologyTestDriver
> It looks like the test driver is syncing the entire state directory to disk
> for every record processed:
> !image-2025-09-08-14-07-05-768.png!
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