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https://issues.apache.org/jira/browse/KAFKA-3042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495306#comment-16495306
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Jun Rao commented on KAFKA-3042:
--------------------------------

Interesting. Do you have the controller and the state-change log around the 
time when the issue occurred? From the log, we want to see when the controller 
changed the zk version and whether that's propagated properly to the replicas.

> updateIsr should stop after failed several times due to zkVersion issue
> -----------------------------------------------------------------------
>
>                 Key: KAFKA-3042
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3042
>             Project: Kafka
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 0.10.0.0
>         Environment: jdk 1.7
> centos 6.4
>            Reporter: Jiahongchao
>            Assignee: Dong Lin
>            Priority: Major
>              Labels: reliability
>             Fix For: 2.0.0
>
>         Attachments: controller.log, server.log.2016-03-23-01, 
> state-change.log
>
>
> sometimes one broker may repeatly log
> "Cached zkVersion 54 not equal to that in zookeeper, skip updating ISR"
> I think this is because the broker consider itself as the leader in fact it's 
> a follower.
> So after several failed tries, it need to find out who is the leader



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