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https://issues.apache.org/jira/browse/KAFKA-3233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-3233.
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Resolution: Fixed
Fix Version/s: 0.10.0.0
Issue resolved by pull request 939
[https://github.com/apache/kafka/pull/939]
> Per topic consumer metrics missing in new consumer's metrics reporter
> ---------------------------------------------------------------------
>
> Key: KAFKA-3233
> URL: https://issues.apache.org/jira/browse/KAFKA-3233
> Project: Kafka
> Issue Type: Bug
> Reporter: Yifan Ying
> Fix For: 0.10.0.0
>
>
> In version of 0.8.2.1, the old consumer will provide the metrics reporter
> per-topic consumer metrics under group 'ConsumerTopicMetrics'. For example:
> *.ConsumerTopicMetrics.clientId.[topic name].BytesPerSec.count
> *.ConsumerTopicMetrics.clientId.[topic name].MessagesPerSec.count
> These consumer metrics are useful since it provides consumer rate for each
> topic. But the new consumer(0.9.0.0) doesn't expose per topic metrics
> anymore, even though I did find sensor objects in consumer metrics object
> collecting per-topic metrics.
> After investigation, I found that these sensors don't register any
> KafkaMetrics.
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