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Example 21 with SnapshotMetadata

use of org.apache.samza.storage.blobstore.index.SnapshotMetadata in project samza by apache.

the class TestBlobStoreRestoreManager method testRestoreRetainsCheckpointDirsIfValid.

@Test
public void testRestoreRetainsCheckpointDirsIfValid() throws IOException {
    String jobName = "testJobName";
    String jobId = "testJobId";
    TaskName taskName = mock(TaskName.class);
    BlobStoreRestoreManagerMetrics metrics = new BlobStoreRestoreManagerMetrics(new MetricsRegistryMap());
    metrics.initStoreMetrics(ImmutableList.of("storeName"));
    Set<String> storesToRestore = ImmutableSet.of("storeName");
    SnapshotIndex snapshotIndex = mock(SnapshotIndex.class);
    Map<String, Pair<String, SnapshotIndex>> prevStoreSnapshotIndexes = ImmutableMap.of("storeName", Pair.of("blobId", snapshotIndex));
    DirIndex dirIndex = BlobStoreTestUtil.createDirIndex("[a]");
    when(snapshotIndex.getDirIndex()).thenReturn(dirIndex);
    CheckpointId checkpointId = CheckpointId.create();
    when(snapshotIndex.getSnapshotMetadata()).thenReturn(new SnapshotMetadata(checkpointId, "jobName", "jobId", "taskName", "storeName"));
    Path loggedBaseDir = Files.createTempDirectory(BlobStoreTestUtil.TEMP_DIR_PREFIX);
    // create store dir to be deleted during restore
    Path storeDir = Files.createTempDirectory(loggedBaseDir, "storeDir-");
    // create checkpoint dir so that shouldRestore = false (areSameDir == true later)
    Path storeCheckpointDir = Files.createTempDirectory(loggedBaseDir, "storeDir-" + checkpointId + "-");
    // create a dummy file to verify after dir rename.
    Path tempFile = Files.createTempFile(storeCheckpointDir, "tempFile-", null);
    StorageConfig storageConfig = mock(StorageConfig.class);
    StorageManagerUtil storageManagerUtil = mock(StorageManagerUtil.class);
    when(storageManagerUtil.getTaskStoreDir(eq(loggedBaseDir.toFile()), eq("storeName"), eq(taskName), eq(TaskMode.Active))).thenReturn(storeDir.toFile());
    when(storageManagerUtil.getStoreCheckpointDir(any(File.class), eq(checkpointId))).thenReturn(storeCheckpointDir.toString());
    when(storageManagerUtil.getTaskStoreCheckpointDirs(any(File.class), anyString(), any(TaskName.class), any(TaskMode.class))).thenReturn(ImmutableList.of(storeCheckpointDir.toFile()));
    BlobStoreUtil blobStoreUtil = mock(BlobStoreUtil.class);
    DirDiffUtil dirDiffUtil = mock(DirDiffUtil.class);
    // ensures shouldRestore is not called
    when(dirDiffUtil.areSameDir(anySet(), anyBoolean())).thenReturn((arg1, arg2) -> true);
    // return immediately without restoring.
    when(blobStoreUtil.restoreDir(eq(storeDir.toFile()), eq(dirIndex), any(Metadata.class))).thenReturn(CompletableFuture.completedFuture(null));
    BlobStoreRestoreManager.restoreStores(jobName, jobId, taskName, storesToRestore, prevStoreSnapshotIndexes, loggedBaseDir.toFile(), storageConfig, metrics, storageManagerUtil, blobStoreUtil, dirDiffUtil, EXECUTOR);
    // verify that the store directory restore was not called (should have restored from checkpoint dir)
    verify(blobStoreUtil, times(0)).restoreDir(eq(storeDir.toFile()), eq(dirIndex), any(Metadata.class));
    // verify that the checkpoint dir was renamed to store dir
    assertFalse(storeCheckpointDir.toFile().exists());
    assertTrue(storeDir.toFile().exists());
    assertTrue(Files.exists(Paths.get(storeDir.toString(), tempFile.getFileName().toString())));
}
Also used : Path(java.nio.file.Path) SnapshotIndex(org.apache.samza.storage.blobstore.index.SnapshotIndex) StorageConfig(org.apache.samza.config.StorageConfig) StorageManagerUtil(org.apache.samza.storage.StorageManagerUtil) BlobStoreRestoreManagerMetrics(org.apache.samza.storage.blobstore.metrics.BlobStoreRestoreManagerMetrics) SnapshotMetadata(org.apache.samza.storage.blobstore.index.SnapshotMetadata) BlobStoreUtil(org.apache.samza.storage.blobstore.util.BlobStoreUtil) Mockito.anyString(org.mockito.Mockito.anyString) TaskMode(org.apache.samza.job.model.TaskMode) TaskName(org.apache.samza.container.TaskName) SnapshotMetadata(org.apache.samza.storage.blobstore.index.SnapshotMetadata) CheckpointId(org.apache.samza.checkpoint.CheckpointId) DirIndex(org.apache.samza.storage.blobstore.index.DirIndex) MetricsRegistryMap(org.apache.samza.metrics.MetricsRegistryMap) File(java.io.File) DirDiffUtil(org.apache.samza.storage.blobstore.util.DirDiffUtil) Pair(org.apache.commons.lang3.tuple.Pair) Test(org.junit.Test)

Aggregations

SnapshotMetadata (org.apache.samza.storage.blobstore.index.SnapshotMetadata)21 DirIndex (org.apache.samza.storage.blobstore.index.DirIndex)19 SnapshotIndex (org.apache.samza.storage.blobstore.index.SnapshotIndex)19 Pair (org.apache.commons.lang3.tuple.Pair)18 File (java.io.File)17 Path (java.nio.file.Path)16 Test (org.junit.Test)15 HashMap (java.util.HashMap)14 CheckpointId (org.apache.samza.checkpoint.CheckpointId)14 ArrayList (java.util.ArrayList)13 CompletableFuture (java.util.concurrent.CompletableFuture)13 CompletionStage (java.util.concurrent.CompletionStage)13 SamzaException (org.apache.samza.SamzaException)13 Checkpoint (org.apache.samza.checkpoint.Checkpoint)13 DirDiff (org.apache.samza.storage.blobstore.diff.DirDiff)13 ImmutableMap (com.google.common.collect.ImmutableMap)12 IOException (java.io.IOException)12 Files (java.nio.file.Files)12 Collections (java.util.Collections)12 List (java.util.List)12