[jira] [Resolved] (KAFKA-1504) Replica is unable to update ISR

["Neha Narkhede (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-1504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neha Narkhede resolved KAFKA-1504.
----------------------------------

    Resolution: Not a Problem

Please retry the test on trunk as [~guozhang] suggested since the fix for the reported problem is checked in.

> Replica is unable to update ISR
> -------------------------------
>
>                 Key: KAFKA-1504
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1504
>             Project: Kafka
>          Issue Type: Bug
>          Components: replication
>    Affects Versions: 0.8.1
>         Environment: Windows Server 2012; JDK 1.7.0
>            Reporter: Jie Tong
>            Assignee: Neha Narkhede
>
> We ran into this issue relatively frequent: replica cannot update ISR and thus fall out of the ISR and result in the # of replicas in ISR < replication factor. A restart of broker can mitigate the issue.
> Below is the error log:
> e,06/22/2014 20:29:20,Logging,kafka.utils.Logging$class,SrcFile="Logging.scala" SrcFunc="error" SrcLine="97" Pid="1952" Tid="8852" TS="0x01CF8E935200FDAF" String1="Conditional update of path /brokers/topics/RTUserCount/partitions/60/state with data {'controller_epoch':44,'leader':3690877,'version':1,'leader_epoch':110,'isr':[3690877]} and expected version 230 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/RTUserCount/partitions/60/state"
> i,06/22/2014 20:29:20,Logging,kafka.utils.Logging$class,SrcFile="Logging.scala" SrcFunc="info" SrcLine="68" Pid="1952" Tid="8852" TS="0x01CF8E93520124BC" String1="Partition [RTUserCount,60] on broker 3690877: Cached zkVersion [230] not equal to that in zookeeper, skip updating ISR"



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