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https://issues.apache.org/jira/browse/KAFKA-5835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16233954#comment-16233954
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Pratika Dola commented on KAFKA-5835:
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Is this still open? Can I work on it?
> CommitFailedException message is misleading and cause is swallowed
> ------------------------------------------------------------------
>
> Key: KAFKA-5835
> URL: https://issues.apache.org/jira/browse/KAFKA-5835
> Project: Kafka
> Issue Type: Bug
> Components: clients
> Affects Versions: 0.11.0.0
> Reporter: Stevo Slavic
> Assignee: Rekha Joshi
>
> {{CommitFailedException}}'s message suggests that it can only be thrown as
> consequence of rebalancing. JavaDoc of the {{CommitFailedException}} suggests
> differently that in general it can be thrown for any kind of unrecoverable
> failure from {{KafkaConsumer#commitSync()}} call (e.g. if offset being
> committed is invalid / outside of range).
> {{CommitFailedException}}'s message is misleading in a way that one can just
> see the message in logs, and without consulting JavaDoc or source code one
> can assume that message is correct and that rebalancing is the only potential
> cause, so one can wast time proceeding with the debugging in wrong direction.
> Additionally, since {{CommitFailedException}} can be thrown for different
> reasons, cause should not be swallowed. This makes impossible to handle each
> potential cause in a specific way. If the cause is another exception please
> pass it as cause, or construct appropriate exception hierarchy with specific
> exception for every failure cause and make {{CommitFailedException}} abstract.
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