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https://issues.apache.org/jira/browse/KAFKA-7201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16770499#comment-16770499
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Matthias J. Sax commented on KAFKA-7201:
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Moving all major/minor/trivial tickets that are not merged yet out of 2.2
release.
[~bbejeck] What about my comment from above?
> Optimize repartition operations
> -------------------------------
>
> Key: KAFKA-7201
> URL: https://issues.apache.org/jira/browse/KAFKA-7201
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Bill Bejeck
> Assignee: Bill Bejeck
> Priority: Major
> Fix For: 2.2.0
>
>
> When the topology has a key changing operation, any downstream processors
> using the key will automatically create a repartition topic. In most cases
> these multiple repartition topics can be collapsed into one repartition
> operation occurring immediately after the key changing operation, thus
> reducing streams overall footprint.
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