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Posted to dev@kafka.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/09/19 18:02:20 UTC

[jira] [Commented] (KAFKA-4163) NPE in StreamsMetadataState during re-balance operations

    [ https://issues.apache.org/jira/browse/KAFKA-4163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15504170#comment-15504170 ] 

ASF GitHub Bot commented on KAFKA-4163:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/kafka/pull/1845


> NPE in StreamsMetadataState during re-balance operations
> --------------------------------------------------------
>
>                 Key: KAFKA-4163
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4163
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 0.10.1.0
>            Reporter: Damian Guy
>            Assignee: Damian Guy
>             Fix For: 0.10.1.0
>
>
> During rebalance operations it is possible that an NPE can be thrown on StreamsMetadataState operations. We should first check it the Cluster object is non-empty. If it is empty we should return StreamsMetadata.NOT_AVAILABLE.
> Also, we should tidy up InvalidStateStoreException messages in the store API to suggest that the store may have migrated to another instance



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