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https://issues.apache.org/jira/browse/KAFKA-5808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma updated KAFKA-5808:
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Fix Version/s: (was: 0.11.0.0)
> The Preferred Replica should be global and dynamic
> --------------------------------------------------
>
> Key: KAFKA-5808
> URL: https://issues.apache.org/jira/browse/KAFKA-5808
> Project: Kafka
> Issue Type: New Feature
> Components: core
> Affects Versions: 0.11.0.0
> Reporter: Canes Kelly
>
> When we create a topic in kafka, broker assigns replicas for partitions in
> this topic, and the First Replica will be the Preferred Replica which means
> that kafka cluster will migrate partition leader to Preferred Replica on the
> basis of ''imbalance rate''.
> Consider that with the increasing of the brokers, the partitions Preferred
> Replicas are always the one assigned when created those topic. So the load
> balancing is not scalable with the change of the scale of the brokers.
> So I would like to propose to modify the assignment of the Preferred Replica
> automatically when cluster expands with appropriate consideration of
> performance declining.
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