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https://issues.apache.org/jira/browse/KAFKA-14352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajini Sivaram resolved KAFKA-14352.
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Reviewer: David Jacot
Resolution: Fixed
This includes protocol changes for rack-aware assignment. Default assignors
will be made rack-aware under follow-on tickets in the next release.
> Support rack-aware partition assignment for Kafka consumers
> -----------------------------------------------------------
>
> Key: KAFKA-14352
> URL: https://issues.apache.org/jira/browse/KAFKA-14352
> Project: Kafka
> Issue Type: Sub-task
> Components: consumer
> Reporter: Rajini Sivaram
> Assignee: Rajini Sivaram
> Priority: Major
> Fix For: 3.4.0
>
>
> KIP-392 added support for consumers to fetch from the replica in their local
> rack. To benefit from locality, consumers need to be assigned partitions
> which have a replica in the same rack. This works well when replication
> factor is the same as the number of racks, since every rack would then have a
> replica with rack-aware replica assignment. If the number of racks is higher,
> some racks may not have replicas of some partitions and hence consumers in
> these racks will have to fetch from another rack. It will be useful to
> propagate rack in the subscription metadata for consumers and provide a
> rack-aware partition assignor for consumers.
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