Examples with StreamSegmentStore io.pravega.segmentstore.contracts.StreamSegmentStore used on opensource projects

Example 31 with StreamSegmentStore

use of io.pravega.segmentstore.contracts.StreamSegmentStore in project pravega by pravega.

the class AutoCheckpointTest method testOnlyOneOutstanding.

@Test(timeout = 30000)
public void testOnlyOneOutstanding() throws ReinitializationRequiredException, DurableDataLogException {
    String endpoint = "localhost";
    String streamName = "abc";
    String readerGroup = "group";
    int port = TestUtils.getAvailableListenPort();
    String testString = "Hello world: ";
    String scope = "Scope1";
    @Cleanup ServiceBuilder serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
    serviceBuilder.initialize();
    StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
    @Cleanup PravegaConnectionListener server = new PravegaConnectionListener(false, port, store);
    server.startListening();
    @Cleanup MockStreamManager streamManager = new MockStreamManager(scope, endpoint, port);
    MockClientFactory clientFactory = streamManager.getClientFactory();
    ReaderGroupConfig groupConfig = ReaderGroupConfig.builder().automaticCheckpointIntervalMillis(1000).stream(Stream.of(scope, streamName)).build();
    streamManager.createScope(scope);
    streamManager.createStream(scope, streamName, null);
    streamManager.createReaderGroup(readerGroup, groupConfig);
    JavaSerializer<String> serializer = new JavaSerializer<>();
    populateEvents(streamName, testString, clientFactory, serializer);
    AtomicLong fakeClock = new AtomicLong(0);
    @Cleanup EventStreamReader<String> reader1 = clientFactory.createReader("reader1", readerGroup, serializer, ReaderConfig.builder().build(), () -> fakeClock.get(), () -> fakeClock.get() / NANOS_PER_SECOND);
    @Cleanup EventStreamReader<String> reader2 = clientFactory.createReader("reader2", readerGroup, serializer, ReaderConfig.builder().build(), () -> fakeClock.get(), () -> fakeClock.get() / NANOS_PER_SECOND);
    int numRead = 0;
    int checkpointCount = 0;
    while (numRead < 100) {
        fakeClock.addAndGet(NANOS_PER_SECOND);
        EventRead<String> event = reader1.readNextEvent(1000);
        if (event.isCheckpoint()) {
            checkpointCount++;
        } else {
            String message = event.getEvent();
            assertEquals(testString + numRead, message);
            numRead++;
        }
    }
    assertEquals("As there is a second reader that does not pass the checkpoint, only one should occur", 1, checkpointCount);
}

Example 32 with StreamSegmentStore

use of io.pravega.segmentstore.contracts.StreamSegmentStore in project pravega by pravega.

the class BatchClientTest method setUp.

@Before
public void setUp() throws Exception {
    executor = Executors.newSingleThreadScheduledExecutor();
    zkTestServer = new TestingServerStarter().start();
    serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
    serviceBuilder.initialize();
    StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
    server = new PravegaConnectionListener(false, servicePort, store);
    server.startListening();
    controllerWrapper = new ControllerWrapper(zkTestServer.getConnectString(), false, controllerPort, serviceHost, servicePort, containerCount);
    controllerWrapper.awaitRunning();
    serializer = new JavaSerializer<>();
}

Example 33 with StreamSegmentStore

use of io.pravega.segmentstore.contracts.StreamSegmentStore in project pravega by pravega.

the class CheckpointTest method testCheckpointAndRestore.

@Test(timeout = 20000)
public void testCheckpointAndRestore() throws ReinitializationRequiredException, InterruptedException, ExecutionException, TimeoutException {
    String endpoint = "localhost";
    String streamName = "abc";
    String readerName = "reader";
    String readerGroupName = "group";
    int port = TestUtils.getAvailableListenPort();
    String testString = "Hello world\n";
    String scope = "Scope1";
    StreamSegmentStore store = this.serviceBuilder.createStreamSegmentService();
    @Cleanup PravegaConnectionListener server = new PravegaConnectionListener(false, port, store);
    server.startListening();
    @Cleanup MockStreamManager streamManager = new MockStreamManager(scope, endpoint, port);
    MockClientFactory clientFactory = streamManager.getClientFactory();
    ReaderGroupConfig groupConfig = ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(Stream.of(scope, streamName)).build();
    streamManager.createScope(scope);
    streamManager.createStream(scope, streamName, StreamConfiguration.builder().scope(scope).streamName(streamName).scalingPolicy(ScalingPolicy.fixed(1)).build());
    ReaderGroup readerGroup = streamManager.createReaderGroup(readerGroupName, groupConfig);
    JavaSerializer<String> serializer = new JavaSerializer<>();
    EventStreamWriter<String> producer = clientFactory.createEventWriter(streamName, serializer, EventWriterConfig.builder().build());
    producer.writeEvent(testString);
    producer.writeEvent(testString);
    producer.writeEvent(testString);
    producer.flush();
    AtomicLong clock = new AtomicLong();
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader(readerName, readerGroupName, serializer, ReaderConfig.builder().build(), clock::get, clock::get);
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    EventRead<String> read = reader.readNextEvent(60000);
    assertEquals(testString, read.getEvent());
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    read = reader.readNextEvent(60000);
    assertEquals(testString, read.getEvent());
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    @Cleanup("shutdown") final InlineExecutor backgroundExecutor = new InlineExecutor();
    CompletableFuture<Checkpoint> checkpoint = readerGroup.initiateCheckpoint("Checkpoint", backgroundExecutor);
    assertFalse(checkpoint.isDone());
    read = reader.readNextEvent(60000);
    assertTrue(read.isCheckpoint());
    assertEquals("Checkpoint", read.getCheckpointName());
    assertNull(read.getEvent());
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    read = reader.readNextEvent(60000);
    assertEquals(testString, read.getEvent());
    Checkpoint cpResult = checkpoint.get(5, TimeUnit.SECONDS);
    assertTrue(checkpoint.isDone());
    assertEquals("Checkpoint", cpResult.getName());
    read = reader.readNextEvent(100);
    assertNull(read.getEvent());
    assertFalse(read.isCheckpoint());
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    readerGroup.resetReaderGroup(ReaderGroupConfig.builder().startFromCheckpoint(cpResult).build());
    try {
        reader.readNextEvent(60000);
        fail();
    } catch (ReinitializationRequiredException e) {
    // Expected
    }
    reader.close();
    reader = clientFactory.createReader(readerName, readerGroupName, serializer, ReaderConfig.builder().build());
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    read = reader.readNextEvent(60000);
    assertEquals(testString, read.getEvent());
    clock.addAndGet(CLOCK_ADVANCE_INTERVAL);
    read = reader.readNextEvent(100);
    assertNull(read.getEvent());
    assertFalse(read.isCheckpoint());
}

Example 34 with StreamSegmentStore

use of io.pravega.segmentstore.contracts.StreamSegmentStore in project pravega by pravega.

the class ControllerStreamMetadataTest method setUp.

@Before
public void setUp() throws Exception {
    final int controllerPort = TestUtils.getAvailableListenPort();
    final String serviceHost = "localhost";
    final int servicePort = TestUtils.getAvailableListenPort();
    final int containerCount = 4;
    try {
        // 1. Start ZK
        this.zkTestServer = new TestingServerStarter().start();
        // 2. Start Pravega service.
        ServiceBuilder serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
        serviceBuilder.initialize();
        StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
        this.server = new PravegaConnectionListener(false, servicePort, store);
        this.server.startListening();
        // 3. Start controller
        this.controllerWrapper = new ControllerWrapper(zkTestServer.getConnectString(), false, controllerPort, serviceHost, servicePort, containerCount);
        this.controllerWrapper.awaitRunning();
        this.controller = controllerWrapper.getController();
        this.streamConfiguration = StreamConfiguration.builder().scope(SCOPE).streamName(STREAM).scalingPolicy(ScalingPolicy.fixed(1)).build();
    } catch (Exception e) {
        log.error("Error during setup", e);
        throw e;
    }
}

Example 35 with StreamSegmentStore

use of io.pravega.segmentstore.contracts.StreamSegmentStore in project pravega by pravega.

the class StreamSegmentStoreTestBase method waitForSegmentInStorage.

private CompletableFuture<Void> waitForSegmentInStorage(SegmentProperties sp, StreamSegmentStore readOnlyStore) {
    TimeoutTimer timer = new TimeoutTimer(TIMEOUT);
    AtomicBoolean tryAgain = new AtomicBoolean(true);
    return Futures.loop(tryAgain::get, () -> readOnlyStore.getStreamSegmentInfo(sp.getName(), false, TIMEOUT).thenCompose(storageProps -> {
        if (sp.isSealed()) {
            tryAgain.set(!storageProps.isSealed());
        } else {
            tryAgain.set(sp.getLength() != storageProps.getLength());
        }
        if (tryAgain.get() && !timer.hasRemaining()) {
            return Futures.<Void>failedFuture(new TimeoutException(String.format("Segment %s did not complete in Storage in the allotted time.", sp.getName())));
        } else {
            return Futures.delayedFuture(Duration.ofMillis(100), executorService());
        }
    }), executorService());
}