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Posted to dev@kafka.apache.org by "Krzysztof Ociepa (JIRA)" <ji...@apache.org> on 2014/05/16 13:19:26 UTC

[jira] [Commented] (KAFKA-1407) Broker can not return to ISR because of BadVersionException

    [ https://issues.apache.org/jira/browse/KAFKA-1407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999664#comment-13999664 ] 

Krzysztof Ociepa commented on KAFKA-1407:
-----------------------------------------

I have the same issue using the latest 0.8.1.1 release:

[2014-05-16 06:32:15,591] INFO Partition [main_topic,5] on broker 2: Shrinking ISR for partition [main_topic,5] from 3,2,1 to 2 (kafka.cluster.Partition)
[2014-05-16 06:32:15,633] ERROR Conditional update of path /brokers/topics/main_topic/partitions/5/state with data {"controller_epoch":6,"leader":2,"version":1,"leader_epoch":26,"isr":[2]} and expected version 51 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/main_topic/partitions/5/state (kafka.utils.ZkUtils$)
[2014-05-16 06:32:15,643] INFO Partition [main_topic,5] on broker 2: Cached zkVersion [51] not equal to that in zookeeper, skip updating ISR (kafka.cluster.Partition)


> Broker can not return to ISR because of BadVersionException
> -----------------------------------------------------------
>
>                 Key: KAFKA-1407
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1407
>             Project: Kafka
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 0.8.1
>            Reporter: Dmitry Bugaychenko
>            Assignee: Neha Narkhede
>
> Each morning we found a broker out of ISR at stuck with log full of messages:
> {code}
> INFO   | jvm 1    | 2014/04/21 08:36:21 | [2014-04-21 09:36:21,907] ERROR Conditional update of path /brokers/topics/topic2/partitions/1/state with data {"controller_epoch":46,"leader":2,"version":1,"leader_epoch":38,"isr":[2]} and expected version 53 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/topic2/partitions/1/state (kafka.utils.ZkUtils$)
> INFO   | jvm 1    | 2014/04/21 08:36:21 | [2014-04-21 09:36:21,907] INFO Partition [topic2,1] on broker 2: Cached zkVersion [53] not equal to that in zookeeper, skip updating ISR (kafka.cluster.Partition)
> {code}
> It seems that it can not recover after short netwrok break down and the only way to return it is restart it using kill -9.



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