como ejecutar pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1

ros::init(argc, argv, "pcp_recovery_node");
ros::NodeHandlePtr nh = boost::make_shared<ros::NodeHandle>();
ros::NodeHandlePtr pnh = boost::make_shared<ros::NodeHandle>("~");
//retrieve the parameters
if(!pnh->getParam("hostname", hostname) ||
!pnh->getParam("hostport", hostport) ||
!pnh->getParam("username", username) ||
!pnh->getParam("node_id", node_id))
{
    ROS_FATAL("Failed to retrieve all the necessary parameters");
    return -1;
}

ROS_INFO("Connecting to %s:%d as user %s", hostname.c_str(), hostport, username.c_str());