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https://issues.apache.org/jira/browse/KAFKA-3818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15326657#comment-15326657
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Jason Gustafson commented on KAFKA-3818:
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[~ewencp] Yeah, that probably makes sense. I assume we'll eventually want to
use the new consumer with MM by default. Perhaps we could make the change at
that time? One of the nice features of the new consumer is that you can enable
support for both range and round-robin, so we could potentially provide a
compatible upgrade path for users who have already enabled the new consumer. It
would use higher overhead in the rebalance protocol though, so I'm not sure
it's a good idea as a default.
> Change Mirror Maker default assignment strategy to round robin
> --------------------------------------------------------------
>
> Key: KAFKA-3818
> URL: https://issues.apache.org/jira/browse/KAFKA-3818
> Project: Kafka
> Issue Type: Bug
> Reporter: Jason Gustafson
> Assignee: Vahid Hashemian
>
> It might make more sense to use round robin assignment by default for MM
> since it gives a better balance between the instances, in particular when the
> number of MM instances exceeds the typical number of partitions per topic.
> There doesn't seem to be any need to keep range assignment since
> copartitioning is not an issue.
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