Examples with SystemStream org.apache.samza.system.SystemStream used on opensource projects

Example 76 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class NonTransactionalStateTaskRestoreManager method restore.

/**
 * Restore each store in taskStoresToRestore sequentially
 */
@Override
public CompletableFuture<Void> restore() {
    return CompletableFuture.runAsync(() -> {
        for (String storeName : taskStoresToRestore) {
            LOG.info("Restoring store: {} for task: {}", storeName, taskModel.getTaskName());
            SystemConsumer systemConsumer = storeConsumers.get(storeName);
            SystemStream systemStream = storeChangelogs.get(storeName);
            SystemAdmin systemAdmin = systemAdmins.getSystemAdmin(systemStream.getSystem());
            ChangelogSSPIterator changelogSSPIterator = new ChangelogSSPIterator(systemConsumer, new SystemStreamPartition(systemStream, taskModel.getChangelogPartition()), null, systemAdmin, false);
            try {
                taskStores.get(storeName).restore(changelogSSPIterator);
            } catch (InterruptedException e) {
                String msg = String.format("Interrupted while restoring store: %s for task: %s", storeName, taskModel.getTaskName().getTaskName());
                // wrap in unchecked exception to throw from lambda
                throw new SamzaException(msg, e);
            }
        }
    }, restoreExecutor);
}

Example 77 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class NonTransactionalStateTaskRestoreManager method validateChangelogStreams.

/**
 *  Validates each changelog system-stream with its respective SystemAdmin.
 */
private void validateChangelogStreams() {
    LOG.info("Validating change log streams: " + storeChangelogs);
    for (SystemStream changelogSystemStream : storeChangelogs.values()) {
        SystemAdmin systemAdmin = systemAdmins.getSystemAdmin(changelogSystemStream.getSystem());
        StreamSpec changelogSpec = StreamSpec.createChangeLogStreamSpec(changelogSystemStream.getStream(), changelogSystemStream.getSystem(), maxChangeLogStreamPartitions);
        systemAdmin.validateStream(changelogSpec);
    }
}

Example 78 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class LocalApplicationRunner method createUnderlyingCoordinatorStream.

@VisibleForTesting
boolean createUnderlyingCoordinatorStream(Config config) {
    // and will be addressed in the next phase of metadata store abstraction
    if (new JobConfig(config).getCoordinatorSystemNameOrNull() == null) {
        LOG.warn("{} or {} not configured. Coordinator stream not created.", JobConfig.JOB_COORDINATOR_SYSTEM, JobConfig.JOB_DEFAULT_SYSTEM);
        return false;
    }
    SystemStream coordinatorSystemStream = CoordinatorStreamUtil.getCoordinatorSystemStream(config);
    SystemAdmins systemAdmins = new SystemAdmins(config, this.getClass().getSimpleName());
    systemAdmins.start();
    try {
        SystemAdmin coordinatorSystemAdmin = systemAdmins.getSystemAdmin(coordinatorSystemStream.getSystem());
        CoordinatorStreamUtil.createCoordinatorStream(coordinatorSystemStream, coordinatorSystemAdmin);
    } finally {
        systemAdmins.stop();
    }
    return true;
}

Example 79 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class TestContainerStorageManager method setUp.

/**
 * Method to create a containerStorageManager with mocked dependencies
 */
@Before
public void setUp() throws InterruptedException {
    taskRestoreMetricGauges = new HashMap<>();
    this.tasks = new HashMap<>();
    this.taskInstanceMetrics = new HashMap<>();
    // Add two mocked tasks
    addMockedTask("task 0", 0);
    addMockedTask("task 1", 1);
    // Mock container metrics
    samzaContainerMetrics = mock(SamzaContainerMetrics.class);
    when(samzaContainerMetrics.taskStoreRestorationMetrics()).thenReturn(taskRestoreMetricGauges);
    // Create a map of test changeLogSSPs
    Map<String, SystemStream> changelogSystemStreams = new HashMap<>();
    changelogSystemStreams.put(STORE_NAME, new SystemStream(SYSTEM_NAME, STREAM_NAME));
    // Create mocked storage engine factories
    Map<String, StorageEngineFactory<Object, Object>> storageEngineFactories = new HashMap<>();
    StorageEngineFactory mockStorageEngineFactory = (StorageEngineFactory<Object, Object>) mock(StorageEngineFactory.class);
    StorageEngine mockStorageEngine = mock(StorageEngine.class);
    when(mockStorageEngine.getStoreProperties()).thenReturn(new StoreProperties.StorePropertiesBuilder().setLoggedStore(true).setPersistedToDisk(true).build());
    doAnswer(invocation -> {
        return mockStorageEngine;
    }).when(mockStorageEngineFactory).getStorageEngine(anyString(), any(), any(), any(), any(), any(), any(), any(), any(), any());
    storageEngineFactories.put(STORE_NAME, mockStorageEngineFactory);
    // Add instrumentation to mocked storage engine, to record the number of store.restore() calls
    doAnswer(invocation -> {
        storeRestoreCallCount++;
        return CompletableFuture.completedFuture(null);
    }).when(mockStorageEngine).restore(any());
    // Set the mocked stores' properties to be persistent
    doAnswer(invocation -> {
        return new StoreProperties.StorePropertiesBuilder().setLoggedStore(true).build();
    }).when(mockStorageEngine).getStoreProperties();
    // Mock and setup sysconsumers
    SystemConsumer mockSystemConsumer = mock(SystemConsumer.class);
    doAnswer(invocation -> {
        systemConsumerStartCount++;
        return null;
    }).when(mockSystemConsumer).start();
    doAnswer(invocation -> {
        systemConsumerStopCount++;
        return null;
    }).when(mockSystemConsumer).stop();
    // Create mocked system factories
    Map<String, SystemFactory> systemFactories = new HashMap<>();
    // Count the number of sysConsumers created
    SystemFactory mockSystemFactory = mock(SystemFactory.class);
    doAnswer(invocation -> {
        this.systemConsumerCreationCount++;
        return mockSystemConsumer;
    }).when(mockSystemFactory).getConsumer(anyString(), any(), any());
    systemFactories.put(SYSTEM_NAME, mockSystemFactory);
    // Create mocked configs for specifying serdes
    Map<String, String> configMap = new HashMap<>();
    configMap.put("stores." + STORE_NAME + ".key.serde", "stringserde");
    configMap.put("stores." + STORE_NAME + ".msg.serde", "stringserde");
    configMap.put("stores." + STORE_NAME + ".factory", mockStorageEngineFactory.getClass().getName());
    configMap.put("stores." + STORE_NAME + ".changelog", SYSTEM_NAME + "." + STREAM_NAME);
    configMap.put("serializers.registry.stringserde.class", StringSerdeFactory.class.getName());
    configMap.put(TaskConfig.TRANSACTIONAL_STATE_RETAIN_EXISTING_STATE, "true");
    Config config = new MapConfig(configMap);
    Map<String, Serde<Object>> serdes = new HashMap<>();
    serdes.put("stringserde", mock(Serde.class));
    // Create mocked system admins
    SystemAdmin mockSystemAdmin = mock(SystemAdmin.class);
    doAnswer(new Answer<Void>() {

        public Void answer(InvocationOnMock invocation) {
            Object[] args = invocation.getArguments();
            System.out.println("called with arguments: " + Arrays.toString(args));
            return null;
        }
    }).when(mockSystemAdmin).validateStream(any());
    SystemAdmins mockSystemAdmins = mock(SystemAdmins.class);
    when(mockSystemAdmins.getSystemAdmin("kafka")).thenReturn(mockSystemAdmin);
    // Create a mocked mockStreamMetadataCache
    SystemStreamMetadata.SystemStreamPartitionMetadata sspMetadata = new SystemStreamMetadata.SystemStreamPartitionMetadata("0", "50", "51");
    Map<Partition, SystemStreamMetadata.SystemStreamPartitionMetadata> partitionMetadata = new HashMap<>();
    partitionMetadata.put(new Partition(0), sspMetadata);
    partitionMetadata.put(new Partition(1), sspMetadata);
    SystemStreamMetadata systemStreamMetadata = new SystemStreamMetadata(STREAM_NAME, partitionMetadata);
    StreamMetadataCache mockStreamMetadataCache = mock(StreamMetadataCache.class);
    when(mockStreamMetadataCache.getStreamMetadata(JavaConverters.asScalaSetConverter(new HashSet<SystemStream>(changelogSystemStreams.values())).asScala().toSet(), false)).thenReturn(new scala.collection.immutable.Map.Map1(new SystemStream(SYSTEM_NAME, STREAM_NAME), systemStreamMetadata));
    CheckpointManager checkpointManager = mock(CheckpointManager.class);
    when(checkpointManager.readLastCheckpoint(any(TaskName.class))).thenReturn(new CheckpointV1(new HashMap<>()));
    SSPMetadataCache mockSSPMetadataCache = mock(SSPMetadataCache.class);
    when(mockSSPMetadataCache.getMetadata(any(SystemStreamPartition.class))).thenReturn(new SystemStreamMetadata.SystemStreamPartitionMetadata("0", "10", "11"));
    ContainerContext mockContainerContext = mock(ContainerContext.class);
    ContainerModel mockContainerModel = new ContainerModel("samza-container-test", tasks);
    when(mockContainerContext.getContainerModel()).thenReturn(mockContainerModel);
    // Reset the expected number of sysConsumer create, start and stop calls, and store.restore() calls
    this.systemConsumerCreationCount = 0;
    this.systemConsumerStartCount = 0;
    this.systemConsumerStopCount = 0;
    this.storeRestoreCallCount = 0;
    StateBackendFactory backendFactory = mock(StateBackendFactory.class);
    TaskRestoreManager restoreManager = mock(TaskRestoreManager.class);
    ArgumentCaptor<ExecutorService> restoreExecutorCaptor = ArgumentCaptor.forClass(ExecutorService.class);
    when(backendFactory.getRestoreManager(any(), any(), any(), restoreExecutorCaptor.capture(), any(), any(), any(), any(), any(), any(), any())).thenReturn(restoreManager);
    doAnswer(invocation -> {
        storeRestoreCallCount++;
        return CompletableFuture.completedFuture(null);
    }).when(restoreManager).restore();
    // Create the container storage manager
    this.containerStorageManager = new ContainerStorageManager(checkpointManager, mockContainerModel, mockStreamMetadataCache, mockSystemAdmins, changelogSystemStreams, new HashMap<>(), storageEngineFactories, systemFactories, serdes, config, taskInstanceMetrics, samzaContainerMetrics, mock(JobContext.class), mockContainerContext, ImmutableMap.of(StorageConfig.KAFKA_STATE_BACKEND_FACTORY, backendFactory), mock(Map.class), DEFAULT_LOGGED_STORE_BASE_DIR, DEFAULT_STORE_BASE_DIR, null, new SystemClock());
}

Example 80 with SystemStream

use of org.apache.samza.system.SystemStream in project samza by apache.

the class KinesisSystemFactory method validateConfig.

protected void validateConfig(String system, Config config) {
    // Kinesis system does not support groupers other than AllSspToSingleTaskGrouper
    JobConfig jobConfig = new JobConfig(config);
    if (!jobConfig.getSystemStreamPartitionGrouperFactory().equals(AllSspToSingleTaskGrouperFactory.class.getCanonicalName())) {
        String errMsg = String.format("Incorrect Grouper %s used for KinesisSystemConsumer %s. Please set the %s config" + " to %s.", jobConfig.getSystemStreamPartitionGrouperFactory(), system, JobConfig.SSP_GROUPER_FACTORY, AllSspToSingleTaskGrouperFactory.class.getCanonicalName());
        throw new ConfigException(errMsg);
    }
    // Kinesis streams cannot be configured as broadcast streams
    TaskConfig taskConfig = new TaskConfig(config);
    if (taskConfig.getBroadcastSystemStreams().stream().anyMatch(ss -> system.equals(ss.getSystem()))) {
        throw new ConfigException("Kinesis streams cannot be configured as broadcast streams.");
    }
    // Kinesis streams cannot be configured as bootstrap streams
    KinesisConfig kConfig = new KinesisConfig(config);
    kConfig.getKinesisStreams(system).forEach(stream -> {
        StreamConfig streamConfig = new StreamConfig(kConfig);
        SystemStream ss = new SystemStream(system, stream);
        if (streamConfig.getBootstrapEnabled(ss)) {
            throw new ConfigException("Kinesis streams cannot be configured as bootstrap streams.");
        }
    });
}