Chris Egerton created KAFKA-10720:
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Summary: Add note to Transformation docs to avoid mutating records
or their members
Key: KAFKA-10720
URL: https://issues.apache.org/jira/browse/KAFKA-10720
Project: Kafka
Issue Type: Improvement
Components: KafkaConnect
Reporter: Chris Egerton
The public documentation for the {{Transformation}} interface does not mention
whether an SMT should or should not mutate records or their members (such as
their values or headers), but there's some logic in the Connect framework that
relies on SMTs not doing this, such as the invocation of
`SourceTask::commitRecord` with a pre-transformation record in some cases.
We should consider adding a note about not modifying records or their members
to the public-facing documentation for the {{Transformation}} interface.
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