Examples with HostControllerStore io.pravega.controller.store.host.HostControllerStore used on opensource projects

Example 1 with HostControllerStore

use of io.pravega.controller.store.host.HostControllerStore in project pravega by pravega.

the class ControllerServiceStarter method startUp.

@Override
protected void startUp() {
    long traceId = LoggerHelpers.traceEnterWithContext(log, this.objectId, "startUp");
    log.info("Initiating controller service startUp");
    log.info("Event processors enabled = {}", serviceConfig.getEventProcessorConfig().isPresent());
    log.info("Cluster listener enabled = {}", serviceConfig.isControllerClusterListenerEnabled());
    log.info("    Host monitor enabled = {}", serviceConfig.getHostMonitorConfig().isHostMonitorEnabled());
    log.info("     gRPC server enabled = {}", serviceConfig.getGRPCServerConfig().isPresent());
    log.info("     REST server enabled = {}", serviceConfig.getRestServerConfig().isPresent());
    final StreamMetadataStore streamStore;
    final TaskMetadataStore taskMetadataStore;
    final HostControllerStore hostStore;
    final CheckpointStore checkpointStore;
    try {
        // Initialize the executor service.
        controllerExecutor = ExecutorServiceHelpers.newScheduledThreadPool(serviceConfig.getThreadPoolSize(), "controllerpool");
        retentionExecutor = ExecutorServiceHelpers.newScheduledThreadPool(Config.RETENTION_THREAD_POOL_SIZE, "retentionpool");
        log.info("Creating the stream store");
        streamStore = StreamStoreFactory.createStore(storeClient, controllerExecutor);
        log.info("Creating the task store");
        taskMetadataStore = TaskStoreFactory.createStore(storeClient, controllerExecutor);
        log.info("Creating the host store");
        hostStore = HostStoreFactory.createStore(serviceConfig.getHostMonitorConfig(), storeClient);
        log.info("Creating the checkpoint store");
        checkpointStore = CheckpointStoreFactory.create(storeClient);
        // On each controller process restart, we use a fresh hostId,
        // which is a combination of hostname and random GUID.
        String hostName = getHostName();
        Host host = new Host(hostName, getPort(), UUID.randomUUID().toString());
        if (serviceConfig.getHostMonitorConfig().isHostMonitorEnabled()) {
            // Start the Segment Container Monitor.
            monitor = new SegmentContainerMonitor(hostStore, (CuratorFramework) storeClient.getClient(), new UniformContainerBalancer(), serviceConfig.getHostMonitorConfig().getHostMonitorMinRebalanceInterval());
            log.info("Starting segment container monitor");
            monitor.startAsync();
        }
        ClientConfig clientConfig = ClientConfig.builder().controllerURI(URI.create((serviceConfig.getGRPCServerConfig().get().isTlsEnabled() ? "tls://" : "tcp://") + "localhost")).trustStore(serviceConfig.getGRPCServerConfig().get().getTlsTrustStore()).validateHostName(false).build();
        connectionFactory = new ConnectionFactoryImpl(clientConfig);
        SegmentHelper segmentHelper = new SegmentHelper();
        streamMetadataTasks = new StreamMetadataTasks(streamStore, hostStore, taskMetadataStore, segmentHelper, controllerExecutor, host.getHostId(), connectionFactory, serviceConfig.getGRPCServerConfig().get().isAuthorizationEnabled(), serviceConfig.getGRPCServerConfig().get().getTokenSigningKey());
        streamTransactionMetadataTasks = new StreamTransactionMetadataTasks(streamStore, hostStore, segmentHelper, controllerExecutor, host.getHostId(), serviceConfig.getTimeoutServiceConfig(), connectionFactory, serviceConfig.getGRPCServerConfig().get().isAuthorizationEnabled(), serviceConfig.getGRPCServerConfig().get().getTokenSigningKey());
        streamCutService = new StreamCutService(Config.BUCKET_COUNT, host.getHostId(), streamStore, streamMetadataTasks, retentionExecutor);
        log.info("starting auto retention service asynchronously");
        streamCutService.startAsync();
        streamCutService.awaitRunning();
        // Controller has a mechanism to track the currently active controller host instances. On detecting a failure of
        // any controller instance, the failure detector stores the failed HostId in a failed hosts directory (FH), and
        // invokes the taskSweeper.sweepOrphanedTasks for each failed host. When all resources under the failed hostId
        // are processed and deleted, that failed HostId is removed from FH folder.
        // Moreover, on controller process startup, it detects any hostIds not in the currently active set of
        // controllers and starts sweeping tasks orphaned by those hostIds.
        TaskSweeper taskSweeper = new TaskSweeper(taskMetadataStore, host.getHostId(), controllerExecutor, streamMetadataTasks);
        TxnSweeper txnSweeper = new TxnSweeper(streamStore, streamTransactionMetadataTasks, serviceConfig.getTimeoutServiceConfig().getMaxLeaseValue(), controllerExecutor);
        if (serviceConfig.isControllerClusterListenerEnabled()) {
            cluster = new ClusterZKImpl((CuratorFramework) storeClient.getClient(), ClusterType.CONTROLLER);
        }
        controllerService = new ControllerService(streamStore, hostStore, streamMetadataTasks, streamTransactionMetadataTasks, new SegmentHelper(), controllerExecutor, cluster);
        // Setup event processors.
        setController(new LocalController(controllerService, serviceConfig.getGRPCServerConfig().get().isAuthorizationEnabled(), serviceConfig.getGRPCServerConfig().get().getTokenSigningKey()));
        if (serviceConfig.getEventProcessorConfig().isPresent()) {
            // Create ControllerEventProcessor object.
            controllerEventProcessors = new ControllerEventProcessors(host.getHostId(), serviceConfig.getEventProcessorConfig().get(), localController, checkpointStore, streamStore, hostStore, segmentHelper, connectionFactory, streamMetadataTasks, controllerExecutor);
            // Bootstrap and start it asynchronously.
            log.info("Starting event processors");
            controllerEventProcessors.bootstrap(streamTransactionMetadataTasks, streamMetadataTasks).thenAcceptAsync(x -> controllerEventProcessors.startAsync(), controllerExecutor);
        }
        // Setup and start controller cluster listener after all sweepers have been initialized.
        if (serviceConfig.isControllerClusterListenerEnabled()) {
            List<FailoverSweeper> failoverSweepers = new ArrayList<>();
            failoverSweepers.add(taskSweeper);
            failoverSweepers.add(txnSweeper);
            if (serviceConfig.getEventProcessorConfig().isPresent()) {
                assert controllerEventProcessors != null;
                failoverSweepers.add(controllerEventProcessors);
            }
            controllerClusterListener = new ControllerClusterListener(host, cluster, controllerExecutor, failoverSweepers);
            log.info("Starting controller cluster listener");
            controllerClusterListener.startAsync();
        }
        // Start RPC server.
        if (serviceConfig.getGRPCServerConfig().isPresent()) {
            grpcServer = new GRPCServer(controllerService, serviceConfig.getGRPCServerConfig().get());
            grpcServer.startAsync();
            log.info("Awaiting start of rpc server");
            grpcServer.awaitRunning();
        }
        // Start REST server.
        if (serviceConfig.getRestServerConfig().isPresent()) {
            restServer = new RESTServer(this.localController, controllerService, grpcServer.getPravegaAuthManager(), serviceConfig.getRestServerConfig().get(), connectionFactory);
            restServer.startAsync();
            log.info("Awaiting start of REST server");
            restServer.awaitRunning();
        }
        // Wait for controller event processors to start.
        if (serviceConfig.getEventProcessorConfig().isPresent()) {
            log.info("Awaiting start of controller event processors");
            controllerEventProcessors.awaitRunning();
        }
        // Wait for controller cluster listeners to start.
        if (serviceConfig.isControllerClusterListenerEnabled()) {
            log.info("Awaiting start of controller cluster listener");
            controllerClusterListener.awaitRunning();
        }
    } finally {
        LoggerHelpers.traceLeave(log, this.objectId, "startUp", traceId);
    }
}

Example 2 with HostControllerStore

use of io.pravega.controller.store.host.HostControllerStore in project pravega by pravega.

the class IntermittentCnxnFailureTest method setup.

@Before
public void setup() throws Exception {
    zkServer = new TestingServerStarter().start();
    zkServer.start();
    zkClient = CuratorFrameworkFactory.newClient(zkServer.getConnectString(), new ExponentialBackoffRetry(200, 10, 5000));
    zkClient.start();
    streamStore = StreamStoreFactory.createZKStore(zkClient, executor);
    TaskMetadataStore taskMetadataStore = TaskStoreFactory.createZKStore(zkClient, executor);
    HostControllerStore hostStore = HostStoreFactory.createInMemoryStore(HostMonitorConfigImpl.dummyConfig());
    segmentHelperMock = spy(new SegmentHelper());
    doReturn(Controller.NodeUri.newBuilder().setEndpoint("localhost").setPort(Config.SERVICE_PORT).build()).when(segmentHelperMock).getSegmentUri(anyString(), anyString(), anyInt(), any());
    ConnectionFactoryImpl connectionFactory = new ConnectionFactoryImpl(ClientConfig.builder().build());
    streamMetadataTasks = new StreamMetadataTasks(streamStore, hostStore, taskMetadataStore, segmentHelperMock, executor, "host", connectionFactory, false, "");
    streamTransactionMetadataTasks = new StreamTransactionMetadataTasks(streamStore, hostStore, segmentHelperMock, executor, "host", connectionFactory, false, "");
    controllerService = new ControllerService(streamStore, hostStore, streamMetadataTasks, streamTransactionMetadataTasks, segmentHelperMock, executor, null);
    controllerService.createScope(SCOPE).get();
}

Example 3 with HostControllerStore

use of io.pravega.controller.store.host.HostControllerStore in project pravega by pravega.

the class SegmentContainerMonitorTest method testMonitorWithInMemoryStore.

@Test
public void testMonitorWithInMemoryStore() throws Exception {
    HostMonitorConfig config = HostMonitorConfigImpl.builder().hostMonitorEnabled(false).containerCount(Config.HOST_STORE_CONTAINER_COUNT).hostMonitorMinRebalanceInterval(Config.CLUSTER_MIN_REBALANCE_INTERVAL).hostContainerMap(HostMonitorConfigImpl.getHostContainerMap(Config.SERVICE_HOST, Config.SERVICE_PORT, Config.HOST_STORE_CONTAINER_COUNT)).build();
    HostControllerStore hostStore = HostStoreFactory.createInMemoryStore(config);
    testMonitor(hostStore);
}

Example 4 with HostControllerStore

use of io.pravega.controller.store.host.HostControllerStore in project pravega by pravega.

the class SegmentContainerMonitorTest method testMonitorWithZKStore.

@Test
public void testMonitorWithZKStore() throws Exception {
    HostMonitorConfig config = HostMonitorConfigImpl.builder().hostMonitorEnabled(true).containerCount(Config.HOST_STORE_CONTAINER_COUNT).hostMonitorMinRebalanceInterval(Config.CLUSTER_MIN_REBALANCE_INTERVAL).build();
    HostControllerStore hostStore = HostStoreFactory.createStore(config, StoreClientFactory.createZKStoreClient(zkClient));
    testMonitor(hostStore);
}

Example 5 with HostControllerStore

use of io.pravega.controller.store.host.HostControllerStore in project pravega by pravega.

the class SegmentContainerMonitorTest method testMonitor.

private void testMonitor(HostControllerStore hostStore) throws Exception {
    // To coordinate the test cases.
    Semaphore sync = new Semaphore(0);
    // Decorating hostStore to add the coordination logic using semaphore.
    class MockHostControllerStore implements HostControllerStore {

        @Override
        public Map<Host, Set<Integer>> getHostContainersMap() {
            return hostStore.getHostContainersMap();
        }

        @Override
        public void updateHostContainersMap(Map<Host, Set<Integer>> newMapping) {
            hostStore.updateHostContainersMap(newMapping);
            // Notify the test case of the update.
            sync.release();
        }

        @Override
        public int getContainerCount() {
            return hostStore.getContainerCount();
        }

        @Override
        public Host getHostForSegment(String scope, String stream, int segmentNumber) {
            return null;
        }
    }
    SegmentContainerMonitor monitor = new SegmentContainerMonitor(new MockHostControllerStore(), zkClient, new UniformContainerBalancer(), 2);
    monitor.startAsync().awaitRunning();
    assertEquals(hostStore.getContainerCount(), Config.HOST_STORE_CONTAINER_COUNT);
    // Rebalance should be triggered for the very first attempt. Verify that no hosts are added to the store.
    assertTrue(sync.tryAcquire(10, TimeUnit.SECONDS));
    assertEquals(0, hostStore.getHostContainersMap().size());
    // New host added.
    cluster.registerHost(new Host("localhost1", 1, null));
    assertTrue(sync.tryAcquire(10, TimeUnit.SECONDS));
    assertEquals(1, hostStore.getHostContainersMap().size());
    // Multiple hosts added and removed.
    cluster.registerHost(new Host("localhost2", 2, null));
    cluster.registerHost(new Host("localhost3", 3, null));
    cluster.registerHost(new Host("localhost4", 4, null));
    cluster.deregisterHost(new Host("localhost1", 1, null));
    assertTrue(sync.tryAcquire(10, TimeUnit.SECONDS));
    assertEquals(3, hostStore.getHostContainersMap().size());
    // Add a host.
    cluster.registerHost(new Host("localhost1", 1, null));
    // Rebalance should not have been triggered since the min rebalance interval is not yet elapsed.
    assertEquals(3, hostStore.getHostContainersMap().size());
    // Wait for rebalance and verify the host update.
    assertTrue(sync.tryAcquire(10, TimeUnit.SECONDS));
    assertEquals(4, hostStore.getHostContainersMap().size());
    monitor.shutDown();
}