[ 
https://issues.apache.org/jira/browse/KAFKA-3042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15239897#comment-15239897
 ] 

Alexander Binzberger commented on KAFKA-3042:
---------------------------------------------

In my case it was high load on the network.
Had this on the test machines/test cluster on openstack.
The physical network was at max load (peeks but sometimes for some more time) 
when I saw this.
I know this info is not very precise but might still help.

> 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
>    Affects Versions: 0.8.2.1
>         Environment: jdk 1.7
> centos 6.4
>            Reporter: Jiahongchao
>             Fix For: 0.10.0.0
>
>         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



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to