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https://issues.apache.org/jira/browse/KAFKA-17324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17873144#comment-17873144
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Bruno Cadonna commented on KAFKA-17324:
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Yes, please assign the ticket to yourself!
We override configs for exactly-once:
https://github.com/apache/kafka/blob/6f18f6f33561a91990ed693e54692f02d1bb974a/streams/src/main/java/org/apache/kafka/streams/StreamsConfig.java#L1221
This should be similar.
> Set config group.protocol to classic in Streams
> -----------------------------------------------
>
> Key: KAFKA-17324
> URL: https://issues.apache.org/jira/browse/KAFKA-17324
> Project: Kafka
> Issue Type: Task
> Reporter: Bruno Cadonna
> Priority: Blocker
> Fix For: 4.0.0
>
>
> Streams is not compatible with the new consumer rebalance protocol proposed
> in KIP-848. Thus, Streams should set/override config {{group.protocol}} to
> {{classic}} at startup to ensure that the classic protocol is used.
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