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Posted to jira@kafka.apache.org by "Qinghui Xu (Jira)" <ji...@apache.org> on 2019/09/09 21:44:00 UTC

[jira] [Created] (KAFKA-8889) Root cause is lost for FetchSessionHandler.handleError

Qinghui Xu created KAFKA-8889:
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             Summary: 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


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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