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https://issues.apache.org/jira/browse/KAFKA-8927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16941443#comment-16941443
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ASF GitHub Bot commented on KAFKA-8927:
---------------------------------------
guozhangwang commented on pull request #7376: KAFKA-8927: Deprecate
PartitionGrouper interface
URL: https://github.com/apache/kafka/pull/7376
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> Remove config `partition.grouper` and interface `PartitionGrouper`
> ------------------------------------------------------------------
>
> Key: KAFKA-8927
> URL: https://issues.apache.org/jira/browse/KAFKA-8927
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Minor
> Labels: kip
>
> The `PartitionGrouper` interface was originally exposed to allow user a
> higher degree of flexibility with regard to partition to task mapping.
> However, Kafka Streams runtime employs many undocumented restrictions to
> write a correct `PartitionGrouper` and hence it is easy for users to break
> the runtime that way.
> In practice, we have not seen the usage of the interface. Hence, we should
> consider to deprecate and eventually remove it.
> KIP-528:
> [https://cwiki.apache.org/confluence/display/KAFKA/KIP-528%3A+Deprecate+PartitionGrouper+configuration+and+interface]
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