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https://issues.apache.org/jira/browse/KAFKA-921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13671124#comment-13671124
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Jun Rao commented on KAFKA-921:
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Thanks for patch v3. +1. Just one minor comment.
1. ReplicaFetcherManager: It seems that we can just use "Replica", instead of
"Replica-" + brokerConfig.brokerId as the metric prefix, since the metric is
local to the broker.
> 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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