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https://issues.apache.org/jira/browse/KAFKA-3333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15487219#comment-15487219
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Stephen Powis commented on KAFKA-3333:
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I'm not advocating for *replacing* the existing implementation, but including
this implementation in the library to avoid others from having to put together
something custom for what seems like (to me anyhow) a common use case.
I wouldn't think that warrants a "major improvement" as defined here:
https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals
But happy to put something together if you think it does.
Thanks!
> Client Partitioner - Round Robin
> --------------------------------
>
> Key: KAFKA-3333
> URL: https://issues.apache.org/jira/browse/KAFKA-3333
> Project: Kafka
> Issue Type: New Feature
> Components: clients
> Affects Versions: 0.10.0.0
> Reporter: Stephen Powis
> Fix For: 0.10.2.0
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> The
> [DefaultPartitioner|https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/producer/internals/DefaultPartitioner.java]
> typically distributes using the hash of the keybytes, and falls back to
> round robin if there is no key. But there is currently no way to do Round
> Robin partitioning if you have keys on your messages without writing your own
> partitioning implementation.
> I think it'd be helpful to have an implementation of straight Round Robin
> partitioning included with the library.
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