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https://issues.apache.org/jira/browse/KAFKA-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15398270#comment-15398270
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Vahid Hashemian commented on KAFKA-4000:
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[~hachikuji] Are you referring to [this
line|https://github.com/apache/kafka/blob/131f96868aa24f38f69ee2ab769ea3f289e5c1fc/clients/src/main/java/org/apache/kafka/clients/consumer/internals/Fetcher.java#L556]
that is called once per partition of topic, instead of once per topic?
> Consumer per-topic metrics do not aggregate partitions from the same topic
> --------------------------------------------------------------------------
>
> Key: KAFKA-4000
> URL: https://issues.apache.org/jira/browse/KAFKA-4000
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Affects Versions: 0.9.0.1, 0.10.0.0
> Reporter: Jason Gustafson
> Priority: Minor
>
> In the Consumer Fetcher code, we have per-topic fetch metrics, but they seem
> to be computed from each partition separately. It seems like we should
> aggregate them by topic.
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