Examples with TaskCancellationService org.opensearch.tasks.TaskCancellationService used on opensource projects

Example 1 with TaskCancellationService

use of org.opensearch.tasks.TaskCancellationService in project OpenSearch by opensearch-project.

the class Node method start.

/**
 * Start the node. If the node is already started, this method is no-op.
 */
public Node start() throws NodeValidationException {
    if (!lifecycle.moveToStarted()) {
        return this;
    }
    logger.info("starting ...");
    pluginLifecycleComponents.forEach(LifecycleComponent::start);
    injector.getInstance(MappingUpdatedAction.class).setClient(client);
    injector.getInstance(IndicesService.class).start();
    injector.getInstance(IndicesClusterStateService.class).start();
    injector.getInstance(SnapshotsService.class).start();
    injector.getInstance(SnapshotShardsService.class).start();
    injector.getInstance(RepositoriesService.class).start();
    injector.getInstance(SearchService.class).start();
    injector.getInstance(FsHealthService.class).start();
    nodeService.getMonitorService().start();
    final ClusterService clusterService = injector.getInstance(ClusterService.class);
    final NodeConnectionsService nodeConnectionsService = injector.getInstance(NodeConnectionsService.class);
    nodeConnectionsService.start();
    clusterService.setNodeConnectionsService(nodeConnectionsService);
    injector.getInstance(GatewayService.class).start();
    Discovery discovery = injector.getInstance(Discovery.class);
    clusterService.getMasterService().setClusterStatePublisher(discovery::publish);
    // Start the transport service now so the publish address will be added to the local disco node in ClusterService
    TransportService transportService = injector.getInstance(TransportService.class);
    transportService.getTaskManager().setTaskResultsService(injector.getInstance(TaskResultsService.class));
    transportService.getTaskManager().setTaskCancellationService(new TaskCancellationService(transportService));
    transportService.start();
    assert localNodeFactory.getNode() != null;
    assert transportService.getLocalNode().equals(localNodeFactory.getNode()) : "transportService has a different local node than the factory provided";
    injector.getInstance(PeerRecoverySourceService.class).start();
    // Load (and maybe upgrade) the metadata stored on disk
    final GatewayMetaState gatewayMetaState = injector.getInstance(GatewayMetaState.class);
    gatewayMetaState.start(settings(), transportService, clusterService, injector.getInstance(MetaStateService.class), injector.getInstance(MetadataIndexUpgradeService.class), injector.getInstance(MetadataUpgrader.class), injector.getInstance(PersistedClusterStateService.class));
    if (Assertions.ENABLED) {
        try {
            assert injector.getInstance(MetaStateService.class).loadFullState().v1().isEmpty();
            final NodeMetadata nodeMetadata = NodeMetadata.FORMAT.loadLatestState(logger, NamedXContentRegistry.EMPTY, nodeEnvironment.nodeDataPaths());
            assert nodeMetadata != null;
            assert nodeMetadata.nodeVersion().equals(Version.CURRENT);
            assert nodeMetadata.nodeId().equals(localNodeFactory.getNode().getId());
        } catch (IOException e) {
            assert false : e;
        }
    }
    // we load the global state here (the persistent part of the cluster state stored on disk) to
    // pass it to the bootstrap checks to allow plugins to enforce certain preconditions based on the recovered state.
    final Metadata onDiskMetadata = gatewayMetaState.getPersistedState().getLastAcceptedState().metadata();
    // this is never null
    assert onDiskMetadata != null : "metadata is null but shouldn't";
    validateNodeBeforeAcceptingRequests(new BootstrapContext(environment, onDiskMetadata), transportService.boundAddress(), pluginsService.filterPlugins(Plugin.class).stream().flatMap(p -> p.getBootstrapChecks().stream()).collect(Collectors.toList()));
    clusterService.addStateApplier(transportService.getTaskManager());
    // start after transport service so the local disco is known
    // start before cluster service so that it can set initial state on ClusterApplierService
    discovery.start();
    clusterService.start();
    assert clusterService.localNode().equals(localNodeFactory.getNode()) : "clusterService has a different local node than the factory provided";
    transportService.acceptIncomingRequests();
    discovery.startInitialJoin();
    final TimeValue initialStateTimeout = DiscoverySettings.INITIAL_STATE_TIMEOUT_SETTING.get(settings());
    configureNodeAndClusterIdStateListener(clusterService);
    if (initialStateTimeout.millis() > 0) {
        final ThreadPool thread = injector.getInstance(ThreadPool.class);
        ClusterState clusterState = clusterService.state();
        ClusterStateObserver observer = new ClusterStateObserver(clusterState, clusterService, null, logger, thread.getThreadContext());
        if (clusterState.nodes().getMasterNodeId() == null) {
            logger.debug("waiting to join the cluster. timeout [{}]", initialStateTimeout);
            final CountDownLatch latch = new CountDownLatch(1);
            observer.waitForNextChange(new ClusterStateObserver.Listener() {

                @Override
                public void onNewClusterState(ClusterState state) {
                    latch.countDown();
                }

                @Override
                public void onClusterServiceClose() {
                    latch.countDown();
                }

                @Override
                public void onTimeout(TimeValue timeout) {
                    logger.warn("timed out while waiting for initial discovery state - timeout: {}", initialStateTimeout);
                    latch.countDown();
                }
            }, state -> state.nodes().getMasterNodeId() != null, initialStateTimeout);
            try {
                latch.await();
            } catch (InterruptedException e) {
                throw new OpenSearchTimeoutException("Interrupted while waiting for initial discovery state");
            }
        }
    }
    injector.getInstance(HttpServerTransport.class).start();
    if (WRITE_PORTS_FILE_SETTING.get(settings())) {
        TransportService transport = injector.getInstance(TransportService.class);
        writePortsFile("transport", transport.boundAddress());
        HttpServerTransport http = injector.getInstance(HttpServerTransport.class);
        writePortsFile("http", http.boundAddress());
    }
    logger.info("started");
    pluginsService.filterPlugins(ClusterPlugin.class).forEach(ClusterPlugin::onNodeStarted);
    return this;
}