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

Example 6 with StreamMetadataCache

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

the class StorageRecovery method getContainerStorageManagers.

/**
 * create one TaskStorageManager for each task. Add all of them to the
 * List<TaskStorageManager>
 */
@SuppressWarnings("rawtypes")
private void getContainerStorageManagers() {
    Set<String> factoryClasses = new StorageConfig(jobConfig).getRestoreFactories();
    Map<String, StateBackendFactory> stateBackendFactories = factoryClasses.stream().collect(Collectors.toMap(factoryClass -> factoryClass, factoryClass -> ReflectionUtil.getObj(factoryClass, StateBackendFactory.class)));
    Clock clock = SystemClock.instance();
    StreamMetadataCache streamMetadataCache = new StreamMetadataCache(systemAdmins, 5000, clock);
    // don't worry about prefetching for this; looks like the tool doesn't flush to offset files anyways
    Map<String, SystemFactory> systemFactories = new SystemConfig(jobConfig).getSystemFactories();
    CheckpointManager checkpointManager = new TaskConfig(jobConfig).getCheckpointManager(new MetricsRegistryMap()).orElse(null);
    for (ContainerModel containerModel : containers.values()) {
        ContainerContext containerContext = new ContainerContextImpl(containerModel, new MetricsRegistryMap());
        ContainerStorageManager containerStorageManager = new ContainerStorageManager(checkpointManager, containerModel, streamMetadataCache, systemAdmins, changeLogSystemStreams, new HashMap<>(), storageEngineFactories, systemFactories, this.getSerdes(), jobConfig, new HashMap<>(), new SamzaContainerMetrics(containerModel.getId(), new MetricsRegistryMap(), ""), JobContextImpl.fromConfigWithDefaults(jobConfig, jobModel), containerContext, stateBackendFactories, new HashMap<>(), storeBaseDir, storeBaseDir, null, new SystemClock());
        this.containerStorageManagers.put(containerModel.getId(), containerStorageManager);
    }
}

Example 7 with StreamMetadataCache

use of org.apache.samza.system.StreamMetadataCache 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 8 with StreamMetadataCache

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

the class TestInputRegexMonitor method setUp.

@Before
public void setUp() {
    inputStreamsDiscovered = new HashSet<>();
    Map<String, Pattern> patternMap = new HashMap<>();
    patternMap.put(systemName, Pattern.compile("test-.*"));
    StreamMetadataCache mockStreamMetadataCache = new MockStreamMetadataCache(null, 1, null);
    MetricsRegistry metrics = Mockito.mock(MetricsRegistry.class);
    this.callbackCount = new CountDownLatch(expectedNumberOfCallbacks);
    // Creating an streamRegexMonitor with empty-input set and test-.* regex input
    this.streamRegexMonitor = new StreamRegexMonitor(new HashSet<>(), patternMap, mockStreamMetadataCache, metrics, inputRegexMs, new StreamRegexMonitor.Callback() {

        @Override
        public void onInputStreamsChanged(Set<SystemStream> initialInputSet, Set<SystemStream> newInputStreams, Map<String, Pattern> regexesMonitored) {
            callbackCount.countDown();
            inputStreamsDiscovered.addAll(newInputStreams);
            // Check that the newInputStream discovered is "kafka" "Test-1"
            Assert.assertTrue(inputStreamsDiscovered.size() == 1);
            Assert.assertTrue(inputStreamsDiscovered.contains(sampleStream));
        }
    });
}

Example 9 with StreamMetadataCache

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

the class TestControlMessageSender method testSend.

@Test
public void testSend() {
    SystemStreamMetadata metadata = mock(SystemStreamMetadata.class);
    Map<Partition, SystemStreamMetadata.SystemStreamPartitionMetadata> partitionMetadata = new HashMap<>();
    partitionMetadata.put(new Partition(0), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    partitionMetadata.put(new Partition(1), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    partitionMetadata.put(new Partition(2), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    partitionMetadata.put(new Partition(3), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    when(metadata.getSystemStreamPartitionMetadata()).thenReturn(partitionMetadata);
    StreamMetadataCache metadataCache = mock(StreamMetadataCache.class);
    when(metadataCache.getSystemStreamMetadata(anyObject(), anyBoolean())).thenReturn(metadata);
    SystemStream systemStream = new SystemStream("test-system", "test-stream");
    Set<Integer> partitions = new HashSet<>();
    MessageCollector collector = mock(MessageCollector.class);
    doAnswer(invocation -> {
        OutgoingMessageEnvelope envelope = (OutgoingMessageEnvelope) invocation.getArguments()[0];
        partitions.add((Integer) envelope.getPartitionKey());
        assertEquals(envelope.getSystemStream(), systemStream);
        return null;
    }).when(collector).send(any());
    ControlMessageSender sender = new ControlMessageSender(metadataCache);
    WatermarkMessage watermark = new WatermarkMessage(System.currentTimeMillis(), "task 0");
    sender.send(watermark, systemStream, collector);
    assertEquals(partitions.size(), 1);
}

Example 10 with StreamMetadataCache

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

the class TestControlMessageSender method testBroadcast.

@Test
public void testBroadcast() {
    SystemStreamMetadata metadata = mock(SystemStreamMetadata.class);
    Map<Partition, SystemStreamMetadata.SystemStreamPartitionMetadata> partitionMetadata = new HashMap<>();
    partitionMetadata.put(new Partition(0), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    partitionMetadata.put(new Partition(1), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    partitionMetadata.put(new Partition(2), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    partitionMetadata.put(new Partition(3), mock(SystemStreamMetadata.SystemStreamPartitionMetadata.class));
    when(metadata.getSystemStreamPartitionMetadata()).thenReturn(partitionMetadata);
    StreamMetadataCache metadataCache = mock(StreamMetadataCache.class);
    when(metadataCache.getSystemStreamMetadata(anyObject(), anyBoolean())).thenReturn(metadata);
    SystemStream systemStream = new SystemStream("test-system", "test-stream");
    Set<Integer> partitions = new HashSet<>();
    MessageCollector collector = mock(MessageCollector.class);
    doAnswer(invocation -> {
        OutgoingMessageEnvelope envelope = (OutgoingMessageEnvelope) invocation.getArguments()[0];
        partitions.add((Integer) envelope.getPartitionKey());
        assertEquals(envelope.getSystemStream(), systemStream);
        return null;
    }).when(collector).send(any());
    ControlMessageSender sender = new ControlMessageSender(metadataCache);
    WatermarkMessage watermark = new WatermarkMessage(System.currentTimeMillis(), "task 0");
    SystemStreamPartition ssp = new SystemStreamPartition(systemStream, new Partition(0));
    sender.broadcastToOtherPartitions(watermark, ssp, collector);
    assertEquals(partitions.size(), 3);
}