@Override
  public void process(ClusterDistributionManager dm) {
    if (alertLevel != Alert.OFF) {
      dm.getAlertingService().addAlertListener(getSender(), AlertLevel.find(alertLevel));
    }
  }
Sent by JMX manager to all other members to notify them that it has started.
geode-core/src/main/java/org/apache/geode/management/internal/ManagerStartupMessage.java