[jira] [Closed] (KAFKA-921) Expose max lag mbean for consumers and replica fetchers

["Joel Koshy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Koshy closed KAFKA-921.
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> Expose max lag mbean for consumers and replica fetchers
> -------------------------------------------------------
>
>                 Key: KAFKA-921
>                 URL: https://issues.apache.org/jira/browse/KAFKA-921
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Joel Koshy
>             Fix For: 0.8
>
>         Attachments: KAFKA-921-v1.patch, KAFKA-921-v2.patch, KAFKA-921-v3.patch
>
>
> We have a ton of consumer mbeans with names that are derived from the consumer id, broker being fetched from, fetcher id, etc. This makes it difficult to do basic monitoring of consumer/replica fetcher lag - since the mbean to monitor can change. A more useful metric for monitoring purposes is the maximum lag across all fetchers.

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