@Override
  public void process(ClusterDistributionManager dm) {
    RemoteGfManagerAgent agent = dm.getAgent();
    if (agent != null) {
      RemoteGemFireVM mgr = agent.getMemberById(getSender());
      if (mgr != null) {
        mgr.callHealthListeners(listenerId, status);
      }
    }
  }
A message that is sent to a particular agent who was registered a health listener on a GemFireVM.
This message is only sent when the health status changes.

@since GemFire 3.5
geode-core/src/main/java/org/apache/geode/internal/admin/remote/HealthListenerMessage.java