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https://issues.apache.org/jira/browse/KAFKA-7578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16672190#comment-16672190
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Matthias J. Sax commented on KAFKA-7578:
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Thanks for creating this ticket. Note, that this is a public API change, and
thus requires a KIP:
[https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals]
Let us know if you have any questions regarding the KIP process.
> Kafka streams: add possibility to choose multiple output topics
> ----------------------------------------------------------------
>
> Key: KAFKA-7578
> URL: https://issues.apache.org/jira/browse/KAFKA-7578
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Taras Danylchuk
> Priority: Minor
> Labels: needs-kip
>
> There is an awesome feature which was added in 2.0 kafka stream - possibility
> to choose dynamically the output topic for topology, but in some cases it
> could be useful to chose several topics withing the same cluster.
> Personally me - I met such case: I needed to route message based on its
> content and by routes configuration to several topics.
> I've made a 'proposal' PR for this, unfortunately I couldn't find better way
> to implement this:
> [https://github.com/apache/kafka/pull/5801]
> If this approach is OK, and improvement could be done in future versions,
> please let me know and I'll finish PR code.
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