Examples with Checkpoint org.apache.samza.checkpoint.Checkpoint used on opensource projects

Example 16 with Checkpoint

use of org.apache.samza.checkpoint.Checkpoint in project samza by apache.

the class TestBlobStoreUtil method testGetSSIThrowsExceptionOnSyncBlobStoreErrors.

@Test(expected = SamzaException.class)
public void testGetSSIThrowsExceptionOnSyncBlobStoreErrors() {
    Checkpoint checkpoint = createCheckpointV2(BlobStoreStateBackendFactory.class.getName(), ImmutableMap.of("storeName", "snapshotIndexBlobId"));
    Set<String> storesToBackupOrRestore = new HashSet<>();
    storesToBackupOrRestore.add("storeName");
    BlobStoreUtil mockBlobStoreUtil = mock(BlobStoreUtil.class);
    when(mockBlobStoreUtil.getSnapshotIndex(anyString(), any(Metadata.class))).thenThrow(new RuntimeException());
    when(mockBlobStoreUtil.getStoreSnapshotIndexes(anyString(), anyString(), anyString(), any(Checkpoint.class), anySetOf(String.class))).thenCallRealMethod();
    mockBlobStoreUtil.getStoreSnapshotIndexes("testJobName", "testJobId", "taskName", checkpoint, storesToBackupOrRestore);
}

Example 17 with Checkpoint

use of org.apache.samza.checkpoint.Checkpoint in project samza by apache.

the class TestBlobStoreUtil method testGetSSIThrowsExceptionForCheckpointV1.

public void testGetSSIThrowsExceptionForCheckpointV1() {
    Checkpoint mockCheckpoint = mock(Checkpoint.class);
    when(mockCheckpoint.getVersion()).thenReturn((short) 1);
    BlobStoreUtil blobStoreUtil = new BlobStoreUtil(mock(BlobStoreManager.class), MoreExecutors.newDirectExecutorService(), null, null);
    Map<String, Pair<String, SnapshotIndex>> prevSnapshotIndexes = blobStoreUtil.getStoreSnapshotIndexes("testJobName", "testJobId", "taskName", mockCheckpoint, new HashSet<>());
    assertEquals(prevSnapshotIndexes.size(), 0);
}

Example 18 with Checkpoint

use of org.apache.samza.checkpoint.Checkpoint in project samza by apache.

the class TestBlobStoreUtil method testGetCheckpointIndexIgnoresStoresNotInStoresToBackupRestoreSet.

@Test
public void testGetCheckpointIndexIgnoresStoresNotInStoresToBackupRestoreSet() {
    String store = "storeName1";
    String anotherStore = "storeName2";
    String oneMoreStore = "storeName3";
    SnapshotIndex mockStoreSnapshotIndex = mock(SnapshotIndex.class);
    Set<String> storesToBackupOrRestore = ImmutableSet.of(store, anotherStore);
    CheckpointV2 checkpoint = createCheckpointV2(BlobStoreStateBackendFactory.class.getName(), ImmutableMap.of(store, "1", anotherStore, "2", oneMoreStore, "3"));
    BlobStoreUtil mockBlobStoreUtil = mock(BlobStoreUtil.class);
    when(mockBlobStoreUtil.getSnapshotIndex(any(String.class), any(Metadata.class))).thenReturn(CompletableFuture.completedFuture(mockStoreSnapshotIndex));
    when(mockBlobStoreUtil.getStoreSnapshotIndexes(anyString(), anyString(), anyString(), any(Checkpoint.class), anySetOf(String.class))).thenCallRealMethod();
    Map<String, Pair<String, SnapshotIndex>> snapshotIndexes = mockBlobStoreUtil.getStoreSnapshotIndexes("testJobName", "testJobId", "taskName", checkpoint, storesToBackupOrRestore);
    verify(mockBlobStoreUtil, times(storesToBackupOrRestore.size())).getSnapshotIndex(anyString(), any(Metadata.class));
}

Example 19 with Checkpoint

use of org.apache.samza.checkpoint.Checkpoint in project samza by apache.

the class TransactionalStateTaskRestoreManager method getCheckpointedChangelogOffsets.

private Map<String, KafkaStateCheckpointMarker> getCheckpointedChangelogOffsets(Checkpoint checkpoint) {
    Map<String, KafkaStateCheckpointMarker> checkpointedChangelogOffsets = new HashMap<>();
    if (checkpoint == null)
        return checkpointedChangelogOffsets;
    if (checkpoint instanceof CheckpointV2) {
        Map<String, Map<String, String>> factoryStoreSCMs = ((CheckpointV2) checkpoint).getStateCheckpointMarkers();
        if (factoryStoreSCMs.containsKey(KafkaStateCheckpointMarker.KAFKA_STATE_BACKEND_FACTORY_NAME)) {
            factoryStoreSCMs.get(KafkaStateCheckpointMarker.KAFKA_STATE_BACKEND_FACTORY_NAME).forEach((storeName, scmString) -> {
                KafkaStateCheckpointMarker kafkaSCM = KafkaStateCheckpointMarker.deserialize(scmString);
                checkpointedChangelogOffsets.put(storeName, kafkaSCM);
            });
        }
    // skip the non-KafkaStateCheckpointMarkers
    } else if (checkpoint instanceof CheckpointV1) {
        // If the checkpoint v1 is used, we need to fetch the changelog SSPs in the inputOffsets in order to get the
        // store offset.
        Map<SystemStreamPartition, String> checkpointedOffsets = checkpoint.getOffsets();
        storeChangelogs.forEach((storeName, systemStream) -> {
            Partition changelogPartition = taskModel.getChangelogPartition();
            SystemStreamPartition storeChangelogSSP = new SystemStreamPartition(systemStream, changelogPartition);
            String checkpointedOffset = checkpointedOffsets.get(storeChangelogSSP);
            if (StringUtils.isNotBlank(checkpointedOffset)) {
                KafkaChangelogSSPOffset kafkaChangelogSSPOffset = KafkaChangelogSSPOffset.fromString(checkpointedOffset);
                KafkaStateCheckpointMarker marker = new KafkaStateCheckpointMarker(storeChangelogSSP, kafkaChangelogSSPOffset.getChangelogOffset());
                checkpointedChangelogOffsets.put(storeName, marker);
            }
        });
    } else {
        throw new SamzaException("Unsupported checkpoint version: " + checkpoint.getVersion());
    }
    return checkpointedChangelogOffsets;
}

Example 20 with Checkpoint

use of org.apache.samza.checkpoint.Checkpoint in project samza by apache.

the class TaskStorageCommitManager method writeCheckpointToStoreDirectories.

/**
 * Writes the {@link Checkpoint} information returned by {@link #upload(CheckpointId, Map)}
 * in each store directory and store checkpoint directory. Written content depends on the type of {@code checkpoint}.
 * For {@link CheckpointV2}, writes the entire task {@link CheckpointV2}.
 * For {@link CheckpointV1}, only writes the changelog ssp offsets in the OFFSET* files.
 *
 * Note: The assumption is that this method will be invoked once for each {@link Checkpoint} version that the
 * task needs to write as determined by {@link org.apache.samza.config.TaskConfig#getCheckpointWriteVersions()}.
 * This is required for upgrade and rollback compatibility.
 *
 * @param checkpoint the latest checkpoint to be persisted to local file system
 */
public void writeCheckpointToStoreDirectories(Checkpoint checkpoint) {
    if (checkpoint instanceof CheckpointV1) {
        LOG.debug("Writing CheckpointV1 to store and checkpoint directories for taskName: {} with checkpoint: {}", taskName, checkpoint);
        // Write CheckpointV1 changelog offsets to store and checkpoint directories
        writeChangelogOffsetFiles(checkpoint.getOffsets());
    } else if (checkpoint instanceof CheckpointV2) {
        LOG.debug("Writing CheckpointV2 to store and checkpoint directories for taskName: {} with checkpoint: {}", taskName, checkpoint);
        storageEngines.forEach((storeName, storageEngine) -> {
            // Only write the checkpoint file if the store is durable and persisted to disk
            if (storageEngine.getStoreProperties().isDurableStore() && storageEngine.getStoreProperties().isPersistedToDisk()) {
                CheckpointV2 checkpointV2 = (CheckpointV2) checkpoint;
                try {
                    File storeDir = storageManagerUtil.getTaskStoreDir(durableStoreBaseDir, storeName, taskName, TaskMode.Active);
                    storageManagerUtil.writeCheckpointV2File(storeDir, checkpointV2);
                    CheckpointId checkpointId = checkpointV2.getCheckpointId();
                    File checkpointDir = Paths.get(storageManagerUtil.getStoreCheckpointDir(storeDir, checkpointId)).toFile();
                    storageManagerUtil.writeCheckpointV2File(checkpointDir, checkpointV2);
                } catch (Exception e) {
                    throw new SamzaException(String.format("Write checkpoint file failed for task: %s, storeName: %s, checkpointId: %s", taskName, storeName, ((CheckpointV2) checkpoint).getCheckpointId()), e);
                }
            }
        });
    } else {
        throw new SamzaException("Unsupported checkpoint version: " + checkpoint.getVersion());
    }
}