Number of potentially lost/delayed heartbeats that will be accepted before considering it to be an anomaly. The ClusterReceptionist is using the akka.remote.DeadlineFailureDetector, which will trigger if there are no heartbeats within the duration heartbeat-interval + acceptable-heartbeat-pause, i.e. 15 seconds with the default settings.

Failure detection checking interval for checking all ClusterClients

How often failure detection heartbeat messages should be received for each ClusterClient

The receptionist will send this number of contact points to the client.

The actor that tunnel response messages to the client will be stopped after this time of inactivity.

Start the receptionist on members tagged with this role. All members are used if undefined.