Qinghui Xu created KAFKA-8889: --------------------------------- 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} -- This message was sent by Atlassian Jira (v8.3.2#803003)