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https://issues.apache.org/jira/browse/KAFKA-168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134353#comment-13134353
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Neha Narkhede commented on KAFKA-168:
-------------------------------------
Today, In the rebalancing assignment, we don't use broker names. Instead we use
broker_id:partition_id. So in addition to attaching the rack name to the broker
name, we would need to use broker name (host-rack) in the rebalancing
assignment algorithm.
Maybe, even the consumer id should contain the rack name ?
> Support locality in consumer partition assignment algorithm
> -----------------------------------------------------------
>
> Key: KAFKA-168
> URL: https://issues.apache.org/jira/browse/KAFKA-168
> Project: Kafka
> Issue Type: New Feature
> Components: core
> Reporter: Jay Kreps
>
> There are some use-cases where it makes sense to co-locate brokers and
> consumer processes. In this case it would be nice to optimize the assignment
> of partitions to consumers so that the consumer preferentially consumes from
> the broker with which it is co-located.
> If we are going to do KAFKA-167, moving the assignment to the broker, it
> would make sense to do that first so we only have to change the logic in one
> place.
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