* GET http://<nn>:<port>/data[/<path>] HTTP/1.1
* }
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException {
final UnixUserGroupInformation ugi = getUGI(request);
final ClientProtocol nnproxy = createNameNodeProxy(ugi);
try {
final String path = request.getPathInfo() != null
? request.getPathInfo() : "/";