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https://issues.apache.org/jira/browse/KAFKA-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15398364#comment-15398364
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Jason Gustafson commented on KAFKA-4000:
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[~vahid] Yes, that's the line I was referring to. That handler code is called
for every partition in a fetch response, but we don't appear to account for the
fact that a fetch response could have multiple partitions from the same topic.
So that makes the per-topic fetch metrics misleading at best. Does that seem
right?
> 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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