[jira] [Commented] (KAFKA-776) Changing ZK format breaks some tools

["Swapnil Ghike (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13588922#comment-13588922 ] 

Swapnil Ghike commented on KAFKA-776:
-------------------------------------

>From what I see in the code, kafka.admin.ShutdownBroker and kafka.tools.ConsumerOffsetChecker should break because of KAFKA-755.

Unrelated to KAFKA-755, kafka.tools.{ExportZkOffsets, VerifyConsumerRebalance} should break because we don't seem to have tested them for a while and there has been an API change in ZkUtils.readDataMaybeNull.

Sriram, which tool did you verify to break? 
                
> Changing ZK format breaks some tools
> ------------------------------------
>
>                 Key: KAFKA-776
>                 URL: https://issues.apache.org/jira/browse/KAFKA-776
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Sriram Subramanian
>            Assignee: Swapnil Ghike
>            Priority: Blocker
>              Labels: kafka-0.8, p1
>             Fix For: 0.8
>
>
> There are some tools that parse the zk output and they might break.1 has been verified to break.
> Few that read the zk output are 
> 1. Shutdown Broker
> 2. PreferredReplicaLeader
> 3. ConsumerOffsetChecker
> There could be few others but I have not checked everything

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