[jira] [Commented] (KAFKA-7732) Kafka broker lag metrics is more than 0, but no partitions are under replicated

[Mathias Kub (JIRA)]

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https://issues.apache.org/jira/browse/KAFKA-7732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16721059#comment-16721059
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Mathias Kub commented on KAFKA-7732:
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Thanks [~huxi_2b] and sorry for the duplicate. I guess this fixes the other 
metrics but

{code}kafka.server:type=ReplicaFetcherManager,name=MaxLag,clientId=Replica{code}

as well?

> Kafka broker lag metrics is more than 0, but no partitions are under 
> replicated
> -------------------------------------------------------------------------------
>
>                 Key: KAFKA-7732
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7732
>             Project: Kafka
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 2.1.0
>            Reporter: Mathias Kub
>            Priority: Major
>         Attachments: 2018-12-13 17-13-34.flv
>
>
> Hi,
> I just upgraded Kafka from 1.1.1 to 2.1.0 and
> {code}
> kafka.server:type=ReplicaFetcherManager,name=MaxLag,clientId=Replica
> {code}
> shows billions of lag, but no partition is under replicated.
> {code}
> kafka.server:type=FetcherLagMetrics,name=ConsumerLag,clientId=ReplicaFetcherThread-0-2,topic=topicname,partition=1
> {code}
> shows 0 or - I guess - the offset as lag, depending on when I display the 
> value.
> I attached a video demonstrating the problem.



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