[KAFKA-2289] KafkaProducer logs erroneous warning on startup

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 0.8.2.1
• Component/s: clients
• Assignee: Unassigned
• Reporter: Henning Schmiedehausen
• Created: 19/Jun/15 23:15
• Updated: 30/Aug/23 16:48
• Resolved: 19/Aug/17 16:40

Description

When creating a new KafkaProducer using the

KafkaProducer(KafkaConfig, Serializer<K>, Serializer<V>) constructor, Kafka will list the following lines, which are harmless but are still at WARN level:

WARN [2015-06-19 23:13:56,557] org.apache.kafka.clients.producer.ProducerConfig: The configuration value.serializer = class XXXX was supplied but isn't a known config.
WARN [2015-06-19 23:13:56,557] org.apache.kafka.clients.producer.ProducerConfig: The configuration key.serializer = class YYYY was supplied but isn't a known config.

Issue Links

• is duplicated by: KAFKA-2268 New producer logs WARN if serializer supplied directly to constructor
• links to: GitHub Pull Request #71