Flink-kafka-connector Consumer配置为什么会发出警告？

flink1.12正常程序中，有如下告警：

19:38:37,557 WARN org.apache.kafka.clients.consumer.ConsumerConfig [] - The configuration 'flink.partition-discovery.interval-millis' was supplied but isn't a known config.

我有一行如下配置： properties.setProperty(FlinkKafkaConsumerBase.KEY_PARTITION_DISCOVERY_INTERVAL_MILLIS,10);

根据官网https://ci.apache.org/projects/flink/flink-docs-stable/dev/connectors/kafka.html#topic-discovery介绍： By default, partition discovery is disabled. To enable it, set a non-negative value for flink.partition-discovery.interval-millis in the provided properties config, representing the discovery interval in milliseconds.

上述配置应该是合法的，但是为何会报如此警告呢？*来自志愿者整理的FLINK邮件归档