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https://issues.apache.org/jira/browse/KAFKA-9018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16949099#comment-16949099
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ASF GitHub Bot commented on KAFKA-9018:
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mmolimar commented on pull request #7496: KAFKA-9018: Throw clearer exceptions
on serialisation errors
URL: https://github.com/apache/kafka/pull/7496
When Connect fails on a deserialisation error, it doesn't show if that's the
key or value that's thrown the error, nor does it give the user any indication
of the topic/partition/offset of the message.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> Kafka Connect - throw clearer exceptions on serialisation errors
> ----------------------------------------------------------------
>
> Key: KAFKA-9018
> URL: https://issues.apache.org/jira/browse/KAFKA-9018
> Project: Kafka
> Issue Type: Improvement
> Components: KafkaConnect
> Reporter: Robin Moffatt
> Priority: Minor
>
> When Connect fails on a deserialisation error, it doesn't show if that's the
> *key or value* that's thrown the error, nor does it give the user any
> indication of the *topic/partition/offset* of the message. Kafka Connect
> should be improved to return this information.
> Example message that user will get (in this case caused by reading non-Avro
> data with the Avro converter)
> {code:java}
> Caused by: org.apache.kafka.connect.errors.DataException: Failed to
> deserialize data for topic sample_topic to Avro:
> at
> io.confluent.connect.avro.AvroConverter.toConnectData(AvroConverter.java:110)
> at
> org.apache.kafka.connect.runtime.WorkerSinkTask.lambda$convertAndTransformRecord$1(WorkerSinkTask.java:487)
> at
> org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperator.execAndRetry(RetryWithToleranceOperator.java:128)
> at
> org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperator.execAndHandleError(RetryWithToleranceOperator.java:162)
> ... 13 more
> Caused by: org.apache.kafka.common.errors.SerializationException: Error
> deserializing Avro message for id -1
> Caused by: org.apache.kafka.common.errors.SerializationException: Unknown
> magic byte!{code}
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