@Override
  public String toString() {
    return "ClusterHealthReport{" +
      "staleConfigsHosts=" + staleConfigsHosts +
      ", maintenanceStateHosts=" + maintenanceStateHosts +
      ", healthyStateHosts=" + healthyStateHosts +
      ", unhealthyStateHosts=" + unhealthyStateHosts +
      ", heartbeatLostStateHosts=" + heartbeatLostStateHosts +
      ", initStateHosts=" + initStateHosts +
      ", healthyStatusHosts=" + healthyStatusHosts +
      ", unhealthyStatusHosts=" + unhealthyStatusHosts +
      ", unknownStatusHosts=" + unknownStatusHosts +
      ", alertStatusHosts=" + alertStatusHosts +
      '}';
  }
@param heartbeatLostStateHosts number of hosts
                               having host status HEARTBEAT_LOST
ambari-server/src/main/java/org/apache/ambari/server/state/ClusterHealthReport.java