Randall Hauch created KAFKA-3832:
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Summary: Kafka Connect's JSON Converter never outputs a null value
Key: KAFKA-3832
URL: https://issues.apache.org/jira/browse/KAFKA-3832
Project: Kafka
Issue Type: Bug
Components: KafkaConnect
Affects Versions: 0.9.0.1
Reporter: Randall Hauch
Assignee: Ewen Cheslack-Postava
Kafka Connect's JSON Converter will never output a null value when
{{enableSchemas=true}}. This means that when a connector outputs a
{{SourceRecord}} with a null value, the JSON Converter will always produce a
message value with:
{code:json}
{
"schema": null,
"payload": null
}
{code}
And, this means that while Kafka log compaction will always be able to remove
earlier messages with the same key, log compaction will never remove _all_ of
the messages with the same key.
The JSON Connector's {{fromConnectData(...)}} should always return null when it
is supplied a null value.
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