Hi kafka-dev, I've created KIP-489 as a proposal for adding latency metrics to the Kafka Consumer in a similar way as record-lag metrics are implemented.
https://cwiki.apache.org/confluence/display/KAFKA/489%3A+Kafka+Consumer+Record+Latency+Metric Regards, Sean -- Principal Engineer, Lightbend, Inc. <http://lightbend.com> @seg1o <https://twitter.com/seg1o>, in/seanaglover <https://www.linkedin.com/in/seanaglover/>