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https://issues.apache.org/jira/browse/KAFKA-8888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16927737#comment-16927737
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John Roesler commented on KAFKA-8888:
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Thanks for the report, [~cpettitt-confluent], I agree that we would do well to
offer stricter guarantees about this.
> Possible to get null IQ value if reading from wrong instance
> ------------------------------------------------------------
>
> Key: KAFKA-8888
> URL: https://issues.apache.org/jira/browse/KAFKA-8888
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Chris Pettitt
> Priority: Minor
>
> Currently if you try to read a key from the wrong instance (i.e. the
> partition that the key is mapped to is owned by a different instance) you get
> null and no indication you're reading from the wrong instance. It would be
> nice to get some indication that the instance is the wrong instance and not
> that the value for the key is null.
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