Examples with Controller io.pravega.client.stream.impl.Controller used on opensource projects

Example 16 with Controller

use of io.pravega.client.stream.impl.Controller in project pravega by pravega.

the class EndToEndTransactionTest method main.

@Test
public static void main(String[] args) throws Exception {
    @Cleanup TestingServer zkTestServer = new TestingServerStarter().start();
    ServiceBuilder serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
    serviceBuilder.initialize();
    StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
    int port = Config.SERVICE_PORT;
    @Cleanup PravegaConnectionListener server = new PravegaConnectionListener(false, port, store);
    server.startListening();
    Thread.sleep(1000);
    @Cleanup ControllerWrapper controllerWrapper = new ControllerWrapper(zkTestServer.getConnectString(), port);
    Controller controller = controllerWrapper.getController();
    controllerWrapper.awaitRunning();
    final String testScope = "testScope";
    final String testStream = "testStream";
    if (!controller.createScope(testScope).get()) {
        log.error("FAILURE: Error creating test scope");
        return;
    }
    ScalingPolicy policy = ScalingPolicy.fixed(5);
    StreamConfiguration streamConfig = StreamConfiguration.builder().scope(testScope).streamName(testStream).scalingPolicy(policy).build();
    if (!controller.createStream(streamConfig).get()) {
        log.error("FAILURE: Error creating test stream");
        return;
    }
    final long txnTimeout = 4000;
    @Cleanup MockClientFactory clientFactory = new MockClientFactory(testScope, controller);
    @Cleanup EventStreamWriter<String> producer = clientFactory.createEventWriter(testStream, new JavaSerializer<>(), EventWriterConfig.builder().transactionTimeoutTime(txnTimeout).transactionTimeoutScaleGracePeriod(txnTimeout).build());
    // region Successful commit tests
    Transaction<String> transaction = producer.beginTxn();
    for (int i = 0; i < 1; i++) {
        String event = "\n Transactional Publish \n";
        log.info("Producing event: " + event);
        transaction.writeEvent("", event);
        transaction.flush();
        Thread.sleep(500);
    }
    CompletableFuture<Object> commit = CompletableFuture.supplyAsync(() -> {
        try {
            transaction.commit();
        } catch (Exception e) {
            log.warn("Error committing transaction", e);
        }
        return null;
    });
    commit.join();
    Transaction.Status txnStatus = transaction.checkStatus();
    assertTrue(txnStatus == Transaction.Status.COMMITTING || txnStatus == Transaction.Status.COMMITTED);
    log.info("SUCCESS: successful in committing transaction. Transaction status=" + txnStatus);
    Thread.sleep(2000);
    txnStatus = transaction.checkStatus();
    assertTrue(txnStatus == Transaction.Status.COMMITTED);
    log.info("SUCCESS: successfully committed transaction. Transaction status=" + txnStatus);
    // endregion
    // region Successful abort tests
    Transaction<String> transaction2 = producer.beginTxn();
    for (int i = 0; i < 1; i++) {
        String event = "\n Transactional Publish \n";
        log.info("Producing event: " + event);
        transaction2.writeEvent("", event);
        transaction2.flush();
        Thread.sleep(500);
    }
    CompletableFuture<Object> drop = CompletableFuture.supplyAsync(() -> {
        try {
            transaction2.abort();
        } catch (Exception e) {
            log.warn("Error aborting transaction", e);
        }
        return null;
    });
    drop.join();
    Transaction.Status txn2Status = transaction2.checkStatus();
    assertTrue(txn2Status == Transaction.Status.ABORTING || txn2Status == Transaction.Status.ABORTED);
    log.info("SUCCESS: successful in dropping transaction. Transaction status=" + txn2Status);
    Thread.sleep(2000);
    txn2Status = transaction2.checkStatus();
    assertTrue(txn2Status == Transaction.Status.ABORTED);
    log.info("SUCCESS: successfully aborted transaction. Transaction status=" + txn2Status);
    // endregion
    // region Successful timeout tests
    Transaction<String> tx1 = producer.beginTxn();
    Thread.sleep((long) (1.3 * txnTimeout));
    Transaction.Status txStatus = tx1.checkStatus();
    Assert.assertTrue(Transaction.Status.ABORTING == txStatus || Transaction.Status.ABORTED == txStatus);
    log.info("SUCCESS: successfully aborted transaction after timeout. Transaction status=" + txStatus);
    // endregion
    // region Ping failure due to controller going into disconnection state
    // Fill in these tests once we have controller.stop() implemented.
    System.exit(0);
}

Example 17 with Controller

use of io.pravega.client.stream.impl.Controller in project pravega by pravega.

the class EndToEndAutoScaleDownTest method main.

public static void main(String[] args) throws Exception {
    try {
        @Cleanup TestingServer zkTestServer = new TestingServerStarter().start();
        int port = Config.SERVICE_PORT;
        @Cleanup ControllerWrapper controllerWrapper = new ControllerWrapper(zkTestServer.getConnectString(), port, false);
        Controller controller = controllerWrapper.getController();
        controllerWrapper.getControllerService().createScope(NameUtils.INTERNAL_SCOPE_NAME).get();
        ClientFactory internalCF = new ClientFactoryImpl(NameUtils.INTERNAL_SCOPE_NAME, controller, new ConnectionFactoryImpl(ClientConfig.builder().build()));
        ServiceBuilder serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
        serviceBuilder.initialize();
        StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
        @Cleanup SegmentStatsFactory segmentStatsFactory = new SegmentStatsFactory();
        SegmentStatsRecorder statsRecorder = segmentStatsFactory.createSegmentStatsRecorder(store, internalCF, AutoScalerConfig.builder().with(AutoScalerConfig.MUTE_IN_SECONDS, 0).with(AutoScalerConfig.COOLDOWN_IN_SECONDS, 0).with(AutoScalerConfig.CACHE_CLEANUP_IN_SECONDS, 5).with(AutoScalerConfig.CACHE_EXPIRY_IN_SECONDS, 30).build());
        @Cleanup PravegaConnectionListener server = new PravegaConnectionListener(false, "localhost", 12345, store, statsRecorder, null, null, null);
        server.startListening();
        controllerWrapper.awaitRunning();
        controllerWrapper.getControllerService().createScope("test").get();
        controller.createStream(CONFIG).get();
        Stream stream = new StreamImpl("test", "test");
        Map<Double, Double> map = new HashMap<>();
        map.put(0.0, 0.33);
        map.put(0.33, 0.66);
        map.put(0.66, 1.0);
        ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
        controller.scaleStream(stream, Collections.singletonList(0), map, executor).getFuture().get();
        Retry.withExpBackoff(10, 10, 100, 10000).retryingOn(NotDoneException.class).throwingOn(RuntimeException.class).runAsync(() -> controller.getCurrentSegments("test", "test").thenAccept(streamSegments -> {
            if (streamSegments.getSegments().size() < 3) {
                System.err.println("Success");
                log.info("Success");
                System.exit(0);
            } else {
                throw new NotDoneException();
            }
        }), Executors.newSingleThreadScheduledExecutor()).exceptionally(e -> {
            System.err.println("Failure");
            log.error("Failure");
            System.exit(1);
            return null;
        }).get();
    } catch (Throwable e) {
        System.err.print("Test failed with exception: " + e.getMessage());
        System.exit(-1);
    }
    System.exit(0);
}

Example 18 with Controller

use of io.pravega.client.stream.impl.Controller in project pravega by pravega.

the class ControllerBootstrapTest method bootstrapTest.

@Test(timeout = 20000)
public void bootstrapTest() throws Exception {
    Controller controller = controllerWrapper.getController();
    // Create test scope. This operation should succeed.
    Boolean scopeStatus = controller.createScope(SCOPE).join();
    Assert.assertEquals(true, scopeStatus);
    // Try creating a stream. It should not complete until Pravega host has started.
    // After Pravega host starts, stream should be successfully created.
    StreamConfiguration streamConfiguration = StreamConfiguration.builder().scope(SCOPE).streamName(STREAM).scalingPolicy(ScalingPolicy.fixed(1)).build();
    CompletableFuture<Boolean> streamStatus = controller.createStream(streamConfiguration);
    Assert.assertTrue(!streamStatus.isDone());
    // Create transaction should fail.
    CompletableFuture<TxnSegments> txIdFuture = controller.createTransaction(new StreamImpl(SCOPE, STREAM), 10000, 30000);
    try {
        txIdFuture.join();
        Assert.fail();
    } catch (CompletionException ce) {
        Assert.assertEquals(IllegalStateException.class, ce.getCause().getClass());
        Assert.assertTrue("Expected failure", true);
    }
    // Now start Pravega service.
    ServiceBuilder serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
    serviceBuilder.initialize();
    StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
    server = new PravegaConnectionListener(false, servicePort, store);
    server.startListening();
    // Ensure that create stream succeeds.
    try {
        Boolean status = streamStatus.join();
        Assert.assertEquals(true, status);
    } catch (CompletionException ce) {
        Assert.fail();
    }
    // Sleep for a while for initialize to complete
    boolean initialized = controllerWrapper.awaitTasksModuleInitialization(5000, TimeUnit.MILLISECONDS);
    Assert.assertTrue(initialized);
    // Now create transaction should succeed.
    txIdFuture = controller.createTransaction(new StreamImpl(SCOPE, STREAM), 10000, 30000);
    try {
        TxnSegments id = txIdFuture.join();
        Assert.assertNotNull(id);
    } catch (CompletionException ce) {
        Assert.fail();
    }
    controllerWrapper.awaitRunning();
}

Example 19 with Controller

use of io.pravega.client.stream.impl.Controller in project pravega by pravega.

the class StreamCutsTest method testReaderGroupCuts.

@Test(timeout = 40000)
public void testReaderGroupCuts() throws Exception {
    StreamConfiguration config = StreamConfiguration.builder().scope("test").streamName("test").scalingPolicy(ScalingPolicy.byEventRate(10, 2, 1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope("test").get();
    controller.createStream(config).get();
    @Cleanup ConnectionFactory connectionFactory = new ConnectionFactoryImpl(ClientConfig.builder().build());
    @Cleanup ClientFactory clientFactory = new ClientFactoryImpl("test", controller, connectionFactory);
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter("test", new JavaSerializer<>(), EventWriterConfig.builder().build());
    writer.writeEvent("0", "fpj was here").get();
    writer.writeEvent("0", "fpj was here again").get();
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl("test", controller, clientFactory, connectionFactory);
    ReaderGroup readerGroup = groupManager.createReaderGroup("cuts", ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream("test/test").build());
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader("readerId", "cuts", new JavaSerializer<>(), ReaderConfig.builder().build());
    EventRead<String> firstEvent = reader.readNextEvent(15000);
    EventRead<String> secondEvent = reader.readNextEvent(15000);
    assertNotNull(firstEvent);
    assertEquals("fpj was here", firstEvent.getEvent());
    assertNotNull(secondEvent);
    assertEquals("fpj was here again", secondEvent.getEvent());
    Map<Stream, StreamCut> cuts = readerGroup.getStreamCuts();
    validateCuts(readerGroup, cuts, Collections.singleton("test/test/0"));
    // Scale the stream to verify that we get more segments in the cut.
    Stream stream = Stream.of("test", "test");
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.5);
    map.put(0.5, 1.0);
    Boolean result = controller.scaleStream(stream, Collections.singletonList(0), map, executor).getFuture().get();
    assertTrue(result);
    log.info("Finished 1st scaling");
    writer.writeEvent("0", "fpj was here again").get();
    writer.writeEvent("1", "fpj was here again").get();
    reader.readNextEvent(15000);
    cuts = readerGroup.getStreamCuts();
    HashSet<String> segmentNames = new HashSet<>();
    segmentNames.add("test/test/1");
    segmentNames.add("test/test/2");
    validateCuts(readerGroup, cuts, Collections.unmodifiableSet(segmentNames));
    // Scale down to verify that the number drops back.
    map = new HashMap<>();
    map.put(0.0, 1.0);
    ArrayList<Integer> toSeal = new ArrayList<>();
    toSeal.add(1);
    toSeal.add(2);
    result = controller.scaleStream(stream, Collections.unmodifiableList(toSeal), map, executor).getFuture().get();
    assertTrue(result);
    log.info("Finished 2nd scaling");
    writer.writeEvent("0", "fpj was here again").get();
    reader.readNextEvent(15000);
    reader.readNextEvent(15000);
    cuts = readerGroup.getStreamCuts();
    validateCuts(readerGroup, cuts, Collections.singleton("test/test/3"));
    // Scale up to 4 segments again.
    map = new HashMap<>();
    map.put(0.0, 0.25);
    map.put(0.25, 0.5);
    map.put(0.5, 0.75);
    map.put(0.75, 1.0);
    result = controller.scaleStream(stream, Collections.singletonList(3), map, executor).getFuture().get();
    assertTrue(result);
    log.info("Finished 3rd scaling");
    writer.writeEvent("0", "fpj was here again").get();
    reader.readNextEvent(15000);
    cuts = readerGroup.getStreamCuts();
    segmentNames = new HashSet<>();
    segmentNames.add("test/test/4");
    segmentNames.add("test/test/5");
    segmentNames.add("test/test/6");
    segmentNames.add("test/test/7");
    validateCuts(readerGroup, cuts, Collections.unmodifiableSet(segmentNames));
}

Example 20 with Controller

use of io.pravega.client.stream.impl.Controller in project pravega by pravega.

the class StreamSeekTest method scaleStream.

private void scaleStream(final String streamName, final Map<Double, Double> keyRanges) throws Exception {
    Stream stream = Stream.of(SCOPE, streamName);
    Controller controller = controllerWrapper.getController();
    assertTrue(controller.scaleStream(stream, Collections.singletonList(0), keyRanges, executor).getFuture().get());
}