private function runClustered()
    {
        $nb_server = CNabuServer::findByKey($this->server_key);
        if (!is_object($nb_server)) {
            throw new ENabuCoreException(ENabuCoreException::ERROR_SERVER_NOT_FOUND, array($this->server_key, '*', '*'));
        }

        $apache_server = new CApacheHTTPServer($nb_server);

        if ($apache_server->locateApacheServer()) {
            $this->displayServerConfig($apache_server);
            $apache_server->createClusteredConfiguration();
        }
    }