public HydraUserDB(String host, String name, String passwd)
    {
        try
        {
            Class.forName("com.mysql.jdbc.Driver").newInstance();
            String cstr = "jdbc:mysql://"+host+"/hydra";
            System.out.println(" # HydraUserDB: Connecting to " + cstr + " as " + name + " : " + passwd);
            Conn = DriverManager.getConnection(cstr, name, passwd);
            if(Conn.isClosed())
            {
                //TODO: commit suicide
                System.out.println(" # HydraUserDB: MYSQL error. Connection is closed.");
            }
        }
        catch(Exception e)
        {
            System.out.println(" # HydraUserDB: MYSQL exception. " + e.getMessage());
            e.printStackTrace();
        }
        finally
        {

        }
    }