Records a heartbeat for a resource. If the resource is not yet registered (i.e. this is the first heartbeat) then is it automatically registered.

Returns true if the resource is considered to be up and healthy, false otherwise. For unregistered resources it returns true.

Returns true if the failure detector has received any heartbeats and started monitoring the resource.

Remove the heartbeat management for a resource

Removes all resources and any associated failure detector state.