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https://issues.apache.org/jira/browse/KAFKA-8889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-8889.
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Resolution: Fixed
> Root cause is lost for FetchSessionHandler.handleError
> ------------------------------------------------------
>
> Key: KAFKA-8889
> URL: https://issues.apache.org/jira/browse/KAFKA-8889
> Project: Kafka
> Issue Type: Bug
> Reporter: Qinghui Xu
> Priority: Minor
>
> FetchSessionHandler is not logging properly the errors, and produces error
> messages sometimes hard to understand the root cause.
> More precisely, FetchSessionHandler.handleError prints Throwable.toString,
> which is merely a summary message, and loses the stacktrace of the error. For
> example, we can get some messages, but cannot get a clue about why:
> {code:java}
> Error sending fetch request (sessionId=1655236778, epoch=99) to node 01:
> org.apache.kafka.common.errors.DisconnectException {code}
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