Examples with BlobStoreManager org.apache.samza.storage.blobstore.BlobStoreManager used on opensource projects

Example 11 with BlobStoreManager

use of org.apache.samza.storage.blobstore.BlobStoreManager in project samza by apache.

the class TestBlobStoreUtil method testRestoreDirRetriesFileRestoreOnRetriableExceptions.

@Test
public void testRestoreDirRetriesFileRestoreOnRetriableExceptions() throws IOException {
    Path restoreDirBasePath = Files.createTempDirectory(BlobStoreTestUtil.TEMP_DIR_PREFIX);
    DirIndex mockDirIndex = mock(DirIndex.class);
    when(mockDirIndex.getDirName()).thenReturn(DirIndex.ROOT_DIR_NAME);
    FileIndex mockFileIndex = mock(FileIndex.class);
    when(mockFileIndex.getFileName()).thenReturn("1.sst");
    // setup mock file attributes. create a temp file to get current user/group/permissions so that they
    // match with restored files.
    File tmpFile = Paths.get(restoreDirBasePath.toString(), "tempfile-" + new Random().nextInt()).toFile();
    tmpFile.createNewFile();
    byte[] fileContents = "fileContents".getBytes();
    PosixFileAttributes attrs = Files.readAttributes(tmpFile.toPath(), PosixFileAttributes.class);
    FileMetadata fileMetadata = new // ctime mtime does not matter. size == 26
    FileMetadata(// ctime mtime does not matter. size == 26
    1234L, // ctime mtime does not matter. size == 26
    1243L, // ctime mtime does not matter. size == 26
    fileContents.length, attrs.owner().getName(), attrs.group().getName(), PosixFilePermissions.toString(attrs.permissions()));
    when(mockFileIndex.getFileMetadata()).thenReturn(fileMetadata);
    // delete so that it doesn't show up in restored dir contents.
    Files.delete(tmpFile.toPath());
    List<FileBlob> mockFileBlobs = new ArrayList<>();
    FileBlob mockFileBlob = mock(FileBlob.class);
    when(mockFileBlob.getBlobId()).thenReturn("fileBlobId");
    when(mockFileBlob.getOffset()).thenReturn(0);
    mockFileBlobs.add(mockFileBlob);
    when(mockFileIndex.getBlobs()).thenReturn(mockFileBlobs);
    CRC32 checksum = new CRC32();
    checksum.update(fileContents);
    when(mockFileIndex.getChecksum()).thenReturn(checksum.getValue());
    when(mockDirIndex.getFilesPresent()).thenReturn(ImmutableList.of(mockFileIndex));
    BlobStoreManager mockBlobStoreManager = mock(BlobStoreManager.class);
    when(mockBlobStoreManager.get(anyString(), any(OutputStream.class), any(Metadata.class))).thenAnswer(// first try, retriable error
    (Answer<CompletionStage<Void>>) invocationOnMock -> {
        String blobId = invocationOnMock.getArgumentAt(0, String.class);
        OutputStream outputStream = invocationOnMock.getArgumentAt(1, OutputStream.class);
        outputStream.write("bad-data".getBytes());
        ((FileOutputStream) outputStream).getFD().sync();
        return FutureUtil.failedFuture(new RetriableException());
    }).thenAnswer(// 2nd try
    (Answer<CompletionStage<Void>>) invocationOnMock -> {
        String blobId = invocationOnMock.getArgumentAt(0, String.class);
        OutputStream outputStream = invocationOnMock.getArgumentAt(1, OutputStream.class);
        outputStream.write(fileContents);
        ((FileOutputStream) outputStream).getFD().sync();
        return CompletableFuture.completedFuture(null);
    });
    BlobStoreUtil blobStoreUtil = new BlobStoreUtil(mockBlobStoreManager, EXECUTOR, null, null);
    blobStoreUtil.restoreDir(restoreDirBasePath.toFile(), mockDirIndex, metadata).join();
    assertTrue(new DirDiffUtil().areSameDir(Collections.emptySet(), false).test(restoreDirBasePath.toFile(), mockDirIndex));
}

Example 12 with BlobStoreManager

use of org.apache.samza.storage.blobstore.BlobStoreManager in project samza by apache.

the class TestBlobStoreUtil method testRemoveTTL.

@Test
public void testRemoveTTL() throws IOException, ExecutionException, InterruptedException {
    BlobStoreManager blobStoreManager = mock(BlobStoreManager.class);
    // File, dir and recursive dir added, retained and removed in local
    // Using unique file names since test setup returns it as the blob id
    String local = "[a, c, z/1, y/2, p/m/3, q/n/4]";
    String remote = "[a, b, z/1, x/5, p/m/3, r/o/6]";
    String expectedAdded = "[c, y/2, q/n/4]";
    String expectedRetained = "[a, z/1, p/m/3]";
    SortedSet<String> expectedAddedFiles = BlobStoreTestUtil.getExpected(expectedAdded);
    SortedSet<String> expectedRetainedFiles = BlobStoreTestUtil.getExpected(expectedRetained);
    SortedSet<String> expectedPresentFiles = new TreeSet<>(expectedAddedFiles);
    expectedPresentFiles.addAll(expectedRetainedFiles);
    // Set up environment
    Path localSnapshotDir = BlobStoreTestUtil.createLocalDir(local);
    String basePath = localSnapshotDir.toAbsolutePath().toString();
    DirIndex remoteSnapshotDir = BlobStoreTestUtil.createDirIndex(remote);
    SnapshotMetadata snapshotMetadata = new SnapshotMetadata(checkpointId, jobName, jobId, taskName, storeName);
    DirDiff dirDiff = DirDiffUtil.getDirDiff(localSnapshotDir.toFile(), remoteSnapshotDir, (localFile, remoteFile) -> localFile.getName().equals(remoteFile.getFileName()));
    when(blobStoreManager.put(any(InputStream.class), any(Metadata.class))).thenAnswer((Answer<CompletableFuture<String>>) invocation -> {
        Metadata metadata = invocation.getArgumentAt(1, Metadata.class);
        String path = metadata.getPayloadPath();
        String fileName = path.substring(path.length() - 1);
        return CompletableFuture.completedFuture(fileName);
    });
    BlobStoreUtil blobStoreUtil = new BlobStoreUtil(blobStoreManager, EXECUTOR, null, null);
    CompletionStage<DirIndex> dirIndexFuture = blobStoreUtil.putDir(dirDiff, snapshotMetadata);
    DirIndex dirIndex = null;
    try {
        // should be already complete. if not, future composition in putDir is broken.
        dirIndex = dirIndexFuture.toCompletableFuture().get(0, TimeUnit.MILLISECONDS);
    } catch (TimeoutException e) {
        fail("Future returned from putDir should be already complete.");
    }
    SnapshotIndex mockSnapshotIndex = mock(SnapshotIndex.class);
    when(mockSnapshotIndex.getSnapshotMetadata()).thenReturn(snapshotMetadata);
    when(mockSnapshotIndex.getDirIndex()).thenReturn(dirIndex);
    SortedSet<String> allTTLRemoved = new TreeSet<>();
    when(blobStoreManager.removeTTL(anyString(), any(Metadata.class))).thenAnswer((Answer<CompletableFuture<String>>) invocation -> {
        String blobId = invocation.getArgumentAt(0, String.class);
        allTTLRemoved.add(blobId);
        return CompletableFuture.completedFuture(null);
    });
    // Execute
    blobStoreUtil.removeTTL("snapshotIndexBlobId", mockSnapshotIndex, metadata);
    // Assert
    SortedSet<String> expectedBlobIds = new TreeSet<>();
    // test uses unique file name (last char) as the blob ID.
    expectedPresentFiles.forEach(f -> expectedBlobIds.add(f.substring(f.length() - 1)));
    expectedBlobIds.add("snapshotIndexBlobId");
    assertEquals(expectedBlobIds, allTTLRemoved);
}

Example 13 with BlobStoreManager

use of org.apache.samza.storage.blobstore.BlobStoreManager in project samza by apache.

the class TestBlobStoreUtil method testCleanUpFailsIfAnySubDirFileDeleteFails.

@Test
public void testCleanUpFailsIfAnySubDirFileDeleteFails() throws IOException, TimeoutException, InterruptedException, ExecutionException {
    BlobStoreManager blobStoreManager = mock(BlobStoreManager.class);
    // File, dir and recursive dir added, retained and removed in local
    // Using unique file names since test util uses only the file name (leaf node)
    // as the mock blob id, not the full file path.
    String local = "[a/1, b/2]";
    String remote = "[c/3, d/4]";
    // Set up environment
    Path localSnapshotDir = BlobStoreTestUtil.createLocalDir(local);
    String basePath = localSnapshotDir.toAbsolutePath().toString();
    DirIndex remoteSnapshotDir = BlobStoreTestUtil.createDirIndex(remote);
    SnapshotMetadata snapshotMetadata = new SnapshotMetadata(checkpointId, jobName, jobId, taskName, storeName);
    DirDiff dirDiff = DirDiffUtil.getDirDiff(localSnapshotDir.toFile(), remoteSnapshotDir, (localFile, remoteFile) -> localFile.getName().equals(remoteFile.getFileName()));
    BlobStoreUtil blobStoreUtil = new BlobStoreUtil(blobStoreManager, EXECUTOR, null, null);
    when(blobStoreManager.put(any(InputStream.class), any(Metadata.class))).thenReturn(CompletableFuture.completedFuture("blobId"));
    CompletionStage<DirIndex> dirIndexFuture = blobStoreUtil.putDir(dirDiff, snapshotMetadata);
    DirIndex dirIndex = null;
    try {
        // should be already complete. if not, future composition in putDir is broken.
        dirIndex = dirIndexFuture.toCompletableFuture().get(0, TimeUnit.MILLISECONDS);
    } catch (TimeoutException e) {
        fail("Future returned from putDir should be already complete.");
    }
    // Set up mocks
    SamzaException exception = new SamzaException("Error deleting file");
    CompletableFuture<Void> failedFuture = new CompletableFuture<>();
    failedFuture.completeExceptionally(exception);
    when(blobStoreManager.delete(anyString(), any(Metadata.class))).thenAnswer((Answer<CompletableFuture<Void>>) invocation -> {
        String blobId = invocation.getArgumentAt(0, String.class);
        if (blobId.equals("3")) {
            return CompletableFuture.completedFuture(null);
        } else {
            return failedFuture;
        }
    });
    // Execute
    CompletionStage<Void> cleanUpFuture = blobStoreUtil.cleanUpDir(dirIndex, metadata);
    try {
        // should be already complete. if not, future composition in putDir is broken.
        cleanUpFuture.toCompletableFuture().get(0, TimeUnit.MILLISECONDS);
    } catch (ExecutionException e) {
        Throwable cause = e.getCause();
        // Assert that the result future fails and that the cause is propagated correctly
        assertEquals(exception, cause);
        return;
    }
    fail("Clean up future should have been completed with an exception");
}