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https://issues.apache.org/jira/browse/KAFKA-8889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16926339#comment-16926339
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ASF GitHub Bot commented on KAFKA-8889:
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guozhangwang commented on pull request #7317: KAFKA-8889: Log errors properly
URL: https://github.com/apache/kafka/pull/7317
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> 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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