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https://issues.apache.org/jira/browse/KAFKA-251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640624#comment-14640624
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Jun Rao commented on KAFKA-251:
-------------------------------

Since we are developing the new java consumer, not sure if it's worth patching 
the mbean in the old consumer.

> The ConsumerStats MBean's PartOwnerStats  attribute is a string
> ---------------------------------------------------------------
>
>                 Key: KAFKA-251
>                 URL: https://issues.apache.org/jira/browse/KAFKA-251
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Pierre-Yves Ritschard
>         Attachments: 0001-Incorporate-Jun-Rao-s-comments-on-KAFKA-251.patch, 
> 0001-Provide-a-patch-for-KAFKA-251.patch
>
>
> The fact that the PartOwnerStats is a string prevents monitoring systems from 
> graphing consumer lag. There should be one mbean per [ topic, partition, 
> groupid ] group.



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