Examples with Discovery org.elasticsearch.discovery.Discovery used on opensource projects

Example 1 with Discovery

use of org.elasticsearch.discovery.Discovery in project elasticsearch by elastic.

the class Node method stop.

private Node stop() {
    if (!lifecycle.moveToStopped()) {
        return this;
    }
    Logger logger = Loggers.getLogger(Node.class, NODE_NAME_SETTING.get(settings));
    logger.info("stopping ...");
    injector.getInstance(TribeService.class).stop();
    injector.getInstance(ResourceWatcherService.class).stop();
    if (NetworkModule.HTTP_ENABLED.get(settings)) {
        injector.getInstance(HttpServerTransport.class).stop();
    }
    injector.getInstance(SnapshotsService.class).stop();
    injector.getInstance(SnapshotShardsService.class).stop();
    // stop any changes happening as a result of cluster state changes
    injector.getInstance(IndicesClusterStateService.class).stop();
    // close discovery early to not react to pings anymore.
    // This can confuse other nodes and delay things - mostly if we're the master and we're running tests.
    injector.getInstance(Discovery.class).stop();
    // we close indices first, so operations won't be allowed on it
    injector.getInstance(RoutingService.class).stop();
    injector.getInstance(ClusterService.class).stop();
    injector.getInstance(NodeConnectionsService.class).stop();
    injector.getInstance(MonitorService.class).stop();
    injector.getInstance(GatewayService.class).stop();
    injector.getInstance(SearchService.class).stop();
    injector.getInstance(TransportService.class).stop();
    injector.getInstance(SearchTransportService.class).stop();
    pluginLifecycleComponents.forEach(LifecycleComponent::stop);
    // we should stop this last since it waits for resources to get released
    // if we had scroll searchers etc or recovery going on we wait for to finish.
    injector.getInstance(IndicesService.class).stop();
    logger.info("stopped");
    return this;
}

Example 2 with Discovery

use of org.elasticsearch.discovery.Discovery in project elasticsearch by elastic.

the class ZenDiscoveryUnitTests method testPendingCSQueueIsClearedWhenClusterStatePublished.

public void testPendingCSQueueIsClearedWhenClusterStatePublished() throws Exception {
    ThreadPool threadPool = new TestThreadPool(getClass().getName());
    // randomly make minimum_master_nodes a value higher than we have nodes for, so it will force failure
    int minMasterNodes = randomBoolean() ? 3 : 1;
    Settings settings = Settings.builder().put(DISCOVERY_ZEN_MINIMUM_MASTER_NODES_SETTING.getKey(), Integer.toString(minMasterNodes)).build();
    ArrayDeque<Closeable> toClose = new ArrayDeque<>();
    try {
        final MockTransportService masterTransport = MockTransportService.createNewService(settings, Version.CURRENT, threadPool, null);
        masterTransport.start();
        DiscoveryNode masterNode = masterTransport.getLocalNode();
        toClose.addFirst(masterTransport);
        ClusterState state = ClusterStateCreationUtils.state(masterNode, null, masterNode);
        // build the zen discovery and cluster service
        ClusterService masterClusterService = createClusterService(threadPool, masterNode);
        toClose.addFirst(masterClusterService);
        state = ClusterState.builder(masterClusterService.getClusterName()).nodes(state.nodes()).build();
        setState(masterClusterService, state);
        ZenDiscovery masterZen = buildZenDiscovery(settings, masterTransport, masterClusterService, threadPool);
        toClose.addFirst(masterZen);
        masterTransport.acceptIncomingRequests();
        // inject a pending cluster state
        masterZen.pendingClusterStatesQueue().addPending(ClusterState.builder(new ClusterName("foreign")).build());
        // a new cluster state with a new discovery node (we will test if the cluster state
        // was updated by the presence of this node in NodesFaultDetection)
        ClusterState newState = ClusterState.builder(masterClusterService.state()).incrementVersion().nodes(DiscoveryNodes.builder(masterClusterService.state().nodes()).masterNodeId(masterNode.getId())).build();
        try {
            // publishing a new cluster state
            ClusterChangedEvent clusterChangedEvent = new ClusterChangedEvent("testing", newState, state);
            AssertingAckListener listener = new AssertingAckListener(newState.nodes().getSize() - 1);
            masterZen.publish(clusterChangedEvent, listener);
            listener.await(1, TimeUnit.HOURS);
            // publish was a success, check that queue as cleared
            assertThat(masterZen.pendingClusterStates(), emptyArray());
        } catch (Discovery.FailedToCommitClusterStateException e) {
            // not successful, so the pending queue should stay
            assertThat(masterZen.pendingClusterStates(), arrayWithSize(1));
            assertThat(masterZen.pendingClusterStates()[0].getClusterName().value(), equalTo("foreign"));
        }
    } finally {
        IOUtils.close(toClose);
        terminate(threadPool);
    }
}

Example 3 with Discovery

use of org.elasticsearch.discovery.Discovery in project elasticsearch by elastic.

the class IndexLifecycleActionIT method getLocalNodeId.

private String getLocalNodeId(String name) {
    Discovery discovery = internalCluster().getInstance(Discovery.class, name);
    String nodeId = discovery.localNode().getId();
    assertThat(nodeId, not(nullValue()));
    return nodeId;
}

Example 4 with Discovery

use of org.elasticsearch.discovery.Discovery in project crate by crate.

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(BlobService.class).start();
    injector.getInstance(DecommissioningService.class).start();
    injector.getInstance(NodeDisconnectJobMonitorService.class).start();
    injector.getInstance(JobsLogService.class).start();
    injector.getInstance(PostgresNetty.class).start();
    injector.getInstance(TasksService.class).start();
    injector.getInstance(Schemas.class).start();
    injector.getInstance(ArrayMapperService.class).start();
    injector.getInstance(DanglingArtifactsService.class).start();
    injector.getInstance(SslContextProviderService.class).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();
    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);
    HttpServerTransport httpServerTransport = injector.getInstance(HttpServerTransport.class);
    httpServerTransport.start();
    // CRATE_PATCH: add http publish address to the discovery node
    TransportAddress publishAddress = httpServerTransport.info().address().publishAddress();
    localNodeFactory.httpPublishAddress = publishAddress.getAddress() + ':' + publishAddress.getPort();
    // 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.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(transportService.boundAddress(), pluginsService.filterPlugins(Plugin.class).stream().flatMap(p -> p.getBootstrapChecks().stream()).collect(Collectors.toList()));
    // 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 = 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);
        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 ElasticsearchTimeoutException("Interrupted while waiting for initial discovery state");
            }
        }
    }
    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;
}

Example 5 with Discovery

use of org.elasticsearch.discovery.Discovery in project elasticsearch by elastic.

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 logger = Loggers.getLogger(Node.class, NODE_NAME_SETTING.get(settings));
    logger.info("starting ...");
    // hack around dependency injection problem (for now...)
    injector.getInstance(Discovery.class).setAllocationService(injector.getInstance(AllocationService.class));
    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(RoutingService.class).start();
    injector.getInstance(SearchService.class).start();
    injector.getInstance(MonitorService.class).start();
    final ClusterService clusterService = injector.getInstance(ClusterService.class);
    final NodeConnectionsService nodeConnectionsService = injector.getInstance(NodeConnectionsService.class);
    nodeConnectionsService.start();
    clusterService.setNodeConnectionsService(nodeConnectionsService);
    // TODO hack around circular dependencies problems
    injector.getInstance(GatewayAllocator.class).setReallocation(clusterService, injector.getInstance(RoutingService.class));
    injector.getInstance(ResourceWatcherService.class).start();
    injector.getInstance(GatewayService.class).start();
    Discovery discovery = injector.getInstance(Discovery.class);
    clusterService.setDiscoverySettings(discovery.getDiscoverySettings());
    clusterService.addInitialStateBlock(discovery.getDiscoverySettings().getNoMasterBlock());
    clusterService.setClusterStatePublisher(discovery::publish);
    // start before the cluster service since it adds/removes initial Cluster state blocks
    final TribeService tribeService = injector.getInstance(TribeService.class);
    tribeService.start();
    // 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.start();
    validateNodeBeforeAcceptingRequests(settings, transportService.boundAddress(), pluginsService.filterPlugins(Plugin.class).stream().flatMap(p -> p.getBootstrapChecks().stream()).collect(Collectors.toList()));
    clusterService.addStateApplier(transportService.getTaskManager());
    clusterService.start();
    assert localNodeFactory.getNode() != null;
    assert transportService.getLocalNode().equals(localNodeFactory.getNode()) : "transportService has a different local node than the factory provided";
    assert clusterService.localNode().equals(localNodeFactory.getNode()) : "clusterService has a different local node than the factory provided";
    // start after cluster service so the local disco is known
    discovery.start();
    transportService.acceptIncomingRequests();
    discovery.startInitialJoin();
    // tribe nodes don't have a master so we shouldn't register an observer         s
    final TimeValue initialStateTimeout = DiscoverySettings.INITIAL_STATE_TIMEOUT_SETTING.get(settings);
    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 ElasticsearchTimeoutException("Interrupted while waiting for initial discovery state");
            }
        }
    }
    if (NetworkModule.HTTP_ENABLED.get(settings)) {
        injector.getInstance(HttpServerTransport.class).start();
    }
    // start nodes now, after the http server, because it may take some time
    tribeService.startNodes();
    // starts connecting to remote clusters if any cluster is configured
    SearchTransportService searchTransportService = injector.getInstance(SearchTransportService.class);
    searchTransportService.start();
    if (WRITE_PORTS_FIELD_SETTING.get(settings)) {
        if (NetworkModule.HTTP_ENABLED.get(settings)) {
            HttpServerTransport http = injector.getInstance(HttpServerTransport.class);
            writePortsFile("http", http.boundAddress());
        }
        TransportService transport = injector.getInstance(TransportService.class);
        writePortsFile("transport", transport.boundAddress());
    }
    logger.info("started");
    return this;
}