TransferFsImage { static TransferResult uploadImageFromStorage(URL fsName, Configuration conf, NNStorage storage, NameNodeFile nnf, long txid) throws IOException { return uploadImageFromStorage(fsName, conf, storage, nnf, txid, null); }  static void downloadMostRecentImageToDirectory(URL infoServer,
      File dir); static MD5Hash downloadImageToStorage(URL fsName, long imageTxId,
      Storage dstStorage, boolean needDigest, boolean isBootstrapStandby); static void downloadAliasMap(URL fsName, File aliasMap,
        boolean isBootstrapStandby); static TransferResult uploadImageFromStorage(URL fsName, Configuration conf,
      NNStorage storage, NameNodeFile nnf, long txid, Canceler canceler); static void copyFileToStream(OutputStream out, File localfile,
      FileInputStream infile, DataTransferThrottler throttler); static MD5Hash doGetUrl(URL url, List<File> localPaths,
      Storage dstStorage, boolean getChecksum);  }
@Test(timeout = 10000) public void testImageUploadTimeout() throws Exception { Configuration conf = new HdfsConfiguration(); NNStorage mockStorage = Mockito.mock(NNStorage.class); HttpServer2 testServer = HttpServerFunctionalTest.createServer("hdfs"); try { testServer.addServlet("ImageTransfer", ImageServlet.PATH_SPEC, TestImageTransferServlet.class); testServer.start(); URL serverURL = HttpServerFunctionalTest.getServerURL(testServer); TransferFsImage.timeout = 2000; File tmpDir = new File(new FileSystemTestHelper().getTestRootDir()); tmpDir.mkdirs(); File mockImageFile = File.createTempFile("image", "", tmpDir); FileOutputStream imageFile = new FileOutputStream(mockImageFile); imageFile.write("data".getBytes()); imageFile.close(); Mockito.when( mockStorage.findImageFile(Mockito.any(NameNodeFile.class), Mockito.anyLong())).thenReturn(mockImageFile); Mockito.when(mockStorage.toColonSeparatedString()).thenReturn( "storage:info:string"); try { TransferFsImage.uploadImageFromStorage(serverURL, conf, mockStorage, NameNodeFile.IMAGE, 1L); fail("TransferImage Should fail with timeout"); } catch (SocketTimeoutException e) { assertEquals("Upload should timeout", "Read timed out", e.getMessage()); } } finally { testServer.stop(); } }