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https://issues.apache.org/jira/browse/KAFKA-9657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058435#comment-17058435
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ASF GitHub Bot commented on KAFKA-9657:
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guozhangwang commented on pull request #8265: KAFKA-9657: Throw upon offset
fetch unsupported stable flag protocol
URL: https://github.com/apache/kafka/pull/8265
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> Add configurable throw on unsupported protocol
> ----------------------------------------------
>
> Key: KAFKA-9657
> URL: https://issues.apache.org/jira/browse/KAFKA-9657
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Boyang Chen
> Priority: Major
>
> Right now Stream could not handle the case when the brokers are downgraded,
> thus potentially could violate EOS requirement. We could add an (internal)
> config to either consumer or producer to actually crash on unsupported
> version when the broker connecting to is on an older version unexpectedly, to
> prevent this case from causing correctness concern.
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