I don't know that much about the internals of NiFi's metrics, but when you use the REST API it should be making a federated request to all the nodes, which is different from a reporting task which should only have the metrics for the given node it is running on. ... View more

@Shu Never noticed there is another publish processor for Kafka, PublishKafka_0_11 seems to be working fine. Thanks for the answer! ... View more