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https://issues.apache.org/jira/browse/FLINK-27840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17544488#comment-17544488
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Martijn Visser commented on FLINK-27840:
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[~lijixiang] These type of errors usually imply some type of network issues
between Flink and your Kafka cluster. I don't think this is a Flink bug.
> org.apache.flink.kafka.shaded.org.apache.kafka.common.errors.DisconnectException
> --------------------------------------------------------------------------------
>
> Key: FLINK-27840
> URL: https://issues.apache.org/jira/browse/FLINK-27840
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.13.0
> Reporter: lijixiang
> Priority: Major
>
> |2022-05-30 21:12:05,430 INFO
> org.apache.flink.kafka.shaded.org.apache.kafka.clients.FetchSessionHandler []
> - [Consumer clientId=consumer-scene-new-abt2-39, groupId=scene-new-abt2]
> Error sending fetch request (sessionId=1409434688, epoch=6) to node 8: {}.
> org.apache.flink.kafka.shaded.org.apache.kafka.common.errors.DisconnectException:
> null|
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