* @return the thread pool
     */
    @Override
    public ThreadPool threadPool() {
        return client.threadPool();
    }

    /**
     * Gets the admin client for cluster and index administration.
     *
     * @return the admin client
     */
    @Override
    public AdminClient admin() {
        return client.admin();
    }

    /**

        } catch (final UnknownHostException e) {
            logger.debug("Unknown hostname.", e);
        }
        return "Unknown";
    }

    /**
     * Sets up administrative HTML data for a given action.
     *
     * @param action  The action to set up data for.
     * @param runtime The action runtime.
     */