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Ksolves commented on KAFKA-2939: -------------------------------- We already use INFO level logging for unused configurations in the `AbstractConfig.logUnused()` method. This logging behavior can also be enabled via the `log4j.properties` file. Only by setting the logging level to INFO, users can ensure that unused configurations are logged. Example configuration in log4j.properties: `log4j.logger.org.apache.kafka=INFO` Do we need to add another property (flag) so that it'll only log if the property is enabled and the log type is INFO? > Make AbstractConfig.logUnused() tunable for clients > --------------------------------------------------- > > Key: KAFKA-2939 > URL: https://issues.apache.org/jira/browse/KAFKA-2939 > Project: Kafka > Issue Type: Improvement > Components: config > Reporter: Guozhang Wang > Priority: Major > Labels: newbie > > Today we always log unused configs in KafkaProducer / KafkaConsumer in their > constructors, however for some cases like Kafka Streams that make use of > these clients, other configs may be passed in to configure Partitioner / > Serializer classes, etc. So it would be better to make this function call > optional to avoid printing unnecessary and confusing WARN entries. -- This message was sent by Atlassian Jira (v8.20.10#820010)