public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        System.out.println("*********************");
        Logger.getRootLogger().removeAllAppenders();
        BasicConfigurator.configure();

        registerShutdownHook();

        /* Load config */
        try {
            File configFile = new File(getServletContext().getRealPath(CONFIG_PATH));
            Properties props = new Properties();
            props.load(new FileReader(configFile));
            props.load(new FileReader(configFile));

            ProcessingQueue.getInstance().configure(props);

            /* Start all processing threads */
            for (Runnable runnable : ProcessingQueue.getInstance().getRunnables()) {
                Thread thread = ThreadManager.createBackgroundThread(runnable);
                thread.start();
            }

        } catch (Exception e) {
            throw new IOException("Could not create processing threads", e);
        }
        logger.info("App started");
    }