Difference between heartbeat-interval config values

Reading this documentation, it’s not clear to me what is the difference between akka.remote.transport-failure-detector.heartbeat-interval and akka.cluster.failure-detector.heartbeat-interval.

I am trying to find the proper settings for a big (>500) akka cluster.

transport-failure-detector is used for finding stale connections and restart the. That should rarely be touched.

cluster.failure-detector is what you can adjust. Don’t increase the heartbeat interval (that shouldn’t generate much messages). Increasing acceptable-heartbeat-pause might be needed.

Thanks ! Would you have an up to date example of config override for big clusters by any chance ?