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Example 1 with RetriableException

use of org.apache.samza.storage.blobstore.exceptions.RetriableException 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));
}
Also used : Path(java.nio.file.Path) SortedSet(java.util.SortedSet) FileMetadata(org.apache.samza.storage.blobstore.index.FileMetadata) FileTime(java.nio.file.attribute.FileTime) TimeoutException(java.util.concurrent.TimeoutException) Random(java.util.Random) RetriableException(org.apache.samza.storage.blobstore.exceptions.RetriableException) FileUtil(org.apache.samza.util.FileUtil) Pair(org.apache.commons.lang3.tuple.Pair) Map(java.util.Map) Path(java.nio.file.Path) FutureUtil(org.apache.samza.util.FutureUtil) ImmutableSet(com.google.common.collect.ImmutableSet) PosixFileAttributes(java.nio.file.attribute.PosixFileAttributes) ImmutableMap(com.google.common.collect.ImmutableMap) Set(java.util.Set) CompletionException(java.util.concurrent.CompletionException) Checkpoint(org.apache.samza.checkpoint.Checkpoint) DirDiff(org.apache.samza.storage.blobstore.diff.DirDiff) CheckpointId(org.apache.samza.checkpoint.CheckpointId) IOUtils(org.apache.commons.io.IOUtils) List(java.util.List) CompletionStage(java.util.concurrent.CompletionStage) SnapshotIndex(org.apache.samza.storage.blobstore.index.SnapshotIndex) Optional(java.util.Optional) RandomStringUtils(org.apache.commons.lang3.RandomStringUtils) SnapshotMetadata(org.apache.samza.storage.blobstore.index.SnapshotMetadata) MoreExecutors(com.google.common.util.concurrent.MoreExecutors) DirIndex(org.apache.samza.storage.blobstore.index.DirIndex) FileBlob(org.apache.samza.storage.blobstore.index.FileBlob) Matchers(org.mockito.Matchers) CheckpointV2(org.apache.samza.checkpoint.CheckpointV2) HashMap(java.util.HashMap) CompletableFuture(java.util.concurrent.CompletableFuture) TreeSet(java.util.TreeSet) ArrayList(java.util.ArrayList) HashSet(java.util.HashSet) Answer(org.mockito.stubbing.Answer) PosixFilePermissions(java.nio.file.attribute.PosixFilePermissions) ArgumentCaptor(org.mockito.ArgumentCaptor) ImmutableList(com.google.common.collect.ImmutableList) BlobStoreManager(org.apache.samza.storage.blobstore.BlobStoreManager) BlobStoreStateBackendFactory(org.apache.samza.storage.blobstore.BlobStoreStateBackendFactory) ExecutorService(java.util.concurrent.ExecutorService) OutputStream(java.io.OutputStream) FileIndex(org.apache.samza.storage.blobstore.index.FileIndex) Files(java.nio.file.Files) FileOutputStream(java.io.FileOutputStream) IOException(java.io.IOException) FileUtils(org.apache.commons.io.FileUtils) Test(org.junit.Test) Metadata(org.apache.samza.storage.blobstore.Metadata) File(java.io.File) SamzaException(org.apache.samza.SamzaException) ExecutionException(java.util.concurrent.ExecutionException) TimeUnit(java.util.concurrent.TimeUnit) Mockito(org.mockito.Mockito) Ignore(org.junit.Ignore) Paths(java.nio.file.Paths) NullOutputStream(org.apache.commons.io.output.NullOutputStream) CRC32(java.util.zip.CRC32) Assert(org.junit.Assert) Collections(java.util.Collections) InputStream(java.io.InputStream) DeletedException(org.apache.samza.storage.blobstore.exceptions.DeletedException) FileBlob(org.apache.samza.storage.blobstore.index.FileBlob) CRC32(java.util.zip.CRC32) OutputStream(java.io.OutputStream) FileOutputStream(java.io.FileOutputStream) NullOutputStream(org.apache.commons.io.output.NullOutputStream) FileMetadata(org.apache.samza.storage.blobstore.index.FileMetadata) ArrayList(java.util.ArrayList) BlobStoreManager(org.apache.samza.storage.blobstore.BlobStoreManager) Answer(org.mockito.stubbing.Answer) FileIndex(org.apache.samza.storage.blobstore.index.FileIndex) Random(java.util.Random) FileOutputStream(java.io.FileOutputStream) DirIndex(org.apache.samza.storage.blobstore.index.DirIndex) PosixFileAttributes(java.nio.file.attribute.PosixFileAttributes) File(java.io.File) CompletionStage(java.util.concurrent.CompletionStage) RetriableException(org.apache.samza.storage.blobstore.exceptions.RetriableException) Test(org.junit.Test)

Aggregations

ImmutableList (com.google.common.collect.ImmutableList)1 ImmutableMap (com.google.common.collect.ImmutableMap)1 ImmutableSet (com.google.common.collect.ImmutableSet)1 MoreExecutors (com.google.common.util.concurrent.MoreExecutors)1 File (java.io.File)1 FileOutputStream (java.io.FileOutputStream)1 IOException (java.io.IOException)1 InputStream (java.io.InputStream)1 OutputStream (java.io.OutputStream)1 Files (java.nio.file.Files)1 Path (java.nio.file.Path)1 Paths (java.nio.file.Paths)1 FileTime (java.nio.file.attribute.FileTime)1 PosixFileAttributes (java.nio.file.attribute.PosixFileAttributes)1 PosixFilePermissions (java.nio.file.attribute.PosixFilePermissions)1 ArrayList (java.util.ArrayList)1 Collections (java.util.Collections)1 HashMap (java.util.HashMap)1 HashSet (java.util.HashSet)1 List (java.util.List)1