Only accept transport requests after node is fully initialized #16746
We should open up the node to the world when it's as ready as possiblAt the moment we open up the transport service before the local node has been fully initialized. This causes bug as some data structures are not fully initialized yet. See for example #16723. Sadly, we can't just start the TransportService last (as we do with the HTTP server) because the ClusterService needs to know the bound published network address for the local DiscoveryNode. This address can only be determined by actually binding (people may use, for example, port 0). Instead we start the TransportService as late as possible but block any incoming requests until the node has completed initialization. A couple of other cleanup during start time: 1) The gateway service now starts before the initial cluster join so we can simplify the logic to recover state if the local node has become master. 2) The discovery is started before the transport service accepts requests, but we only start the join process later using a dedicated method. Closes #16723 Closes #16746
This commit is contained in:
Boaz Leskes
parent
c978335968
commit
5a91ad1115
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@ -39,7 +39,6 @@ import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
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import org.elasticsearch.common.network.NetworkModule;
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import org.elasticsearch.common.network.NetworkService;
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import org.elasticsearch.common.settings.Settings;
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import org.elasticsearch.common.settings.SettingsFilter;
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import org.elasticsearch.common.settings.SettingsModule;
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import org.elasticsearch.common.transport.TransportAddress;
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import org.elasticsearch.indices.breaker.CircuitBreakerModule;
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@ -155,7 +154,10 @@ public class TransportClient extends AbstractClient {
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pluginsService.processModules(modules);
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Injector injector = modules.createInjector();
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injector.getInstance(TransportService.class).start();
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final TransportService transportService = injector.getInstance(TransportService.class);
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transportService.start();
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transportService.acceptIncomingRequests();
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TransportClient transportClient = new TransportClient(injector);
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success = true;
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return transportClient;
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@ -94,6 +94,12 @@ public interface Discovery extends LifecycleComponent<Discovery> {
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DiscoveryStats stats();
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/**
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* Triggers the first join cycle
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*/
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void startInitialJoin();
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/***
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* @return the current value of minimum master nodes, or -1 for not set
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*/
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@ -87,8 +87,9 @@ public class DiscoveryService extends AbstractLifecycleComponent<DiscoveryServic
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logger.info(discovery.nodeDescription());
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}
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public void waitForInitialState() {
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public void joinClusterAndWaitForInitialState() {
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try {
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discovery.startInitialJoin();
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if (!initialStateListener.waitForInitialState(initialStateTimeout)) {
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logger.warn("waited for {} and no initial state was set by the discovery", initialStateTimeout);
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}
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@ -100,6 +100,11 @@ public class LocalDiscovery extends AbstractLifecycleComponent<Discovery> implem
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@Override
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protected void doStart() {
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}
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@Override
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public void startInitialJoin() {
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synchronized (clusterGroups) {
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ClusterGroup clusterGroup = clusterGroups.get(clusterName);
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if (clusterGroup == null) {
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@ -216,7 +216,10 @@ public class ZenDiscovery extends AbstractLifecycleComponent<Discovery> implemen
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joinThreadControl.start();
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pingService.start();
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this.nodeJoinController = new NodeJoinController(clusterService, routingService, discoverySettings, settings);
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}
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@Override
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public void startInitialJoin() {
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// start the join thread from a cluster state update. See {@link JoinThreadControl} for details.
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clusterService.submitStateUpdateTask("initial_join", new ClusterStateUpdateTask() {
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@ -133,27 +133,6 @@ public class GatewayService extends AbstractLifecycleComponent<GatewayService> i
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@Override
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protected void doStart() {
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clusterService.addLast(this);
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// check we didn't miss any cluster state that came in until now / during the addition
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clusterService.submitStateUpdateTask("gateway_initial_state_recovery", new ClusterStateUpdateTask() {
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@Override
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public ClusterState execute(ClusterState currentState) throws Exception {
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checkStateMeetsSettingsAndMaybeRecover(currentState);
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return currentState;
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}
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@Override
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public boolean runOnlyOnMaster() {
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// It's OK to run on non masters as checkStateMeetsSettingsAndMaybeRecover checks for this
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// we return false to avoid unneeded failure logs
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return false;
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}
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@Override
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public void onFailure(String source, Throwable t) {
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logger.warn("unexpected failure while checking if state can be recovered. another attempt will be made with the next cluster state change", t);
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}
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});
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}
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@Override
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@ -170,10 +149,9 @@ public class GatewayService extends AbstractLifecycleComponent<GatewayService> i
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if (lifecycle.stoppedOrClosed()) {
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return;
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}
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checkStateMeetsSettingsAndMaybeRecover(event.state());
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}
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protected void checkStateMeetsSettingsAndMaybeRecover(ClusterState state) {
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final ClusterState state = event.state();
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if (state.nodes().localNodeMaster() == false) {
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// not our job to recover
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return;
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@ -40,7 +40,6 @@ import org.elasticsearch.common.inject.Injector;
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import org.elasticsearch.common.inject.Module;
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import org.elasticsearch.common.inject.ModulesBuilder;
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import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
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import org.elasticsearch.common.lease.Releasable;
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import org.elasticsearch.common.lease.Releasables;
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import org.elasticsearch.common.logging.ESLogger;
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import org.elasticsearch.common.logging.Loggers;
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@ -50,7 +49,6 @@ import org.elasticsearch.common.network.NetworkService;
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import org.elasticsearch.common.settings.ClusterSettings;
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import org.elasticsearch.common.settings.Setting;
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import org.elasticsearch.common.settings.Settings;
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import org.elasticsearch.common.settings.SettingsFilter;
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import org.elasticsearch.common.settings.SettingsModule;
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import org.elasticsearch.common.transport.BoundTransportAddress;
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import org.elasticsearch.common.transport.TransportAddress;
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@ -279,8 +277,6 @@ public class Node implements Closeable {
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injector.getInstance(IndicesTTLService.class).start();
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injector.getInstance(SnapshotsService.class).start();
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injector.getInstance(SnapshotShardsService.class).start();
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injector.getInstance(TransportService.class).start();
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injector.getInstance(ClusterService.class).start();
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injector.getInstance(RoutingService.class).start();
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injector.getInstance(SearchService.class).start();
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injector.getInstance(MonitorService.class).start();
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@ -289,16 +285,24 @@ public class Node implements Closeable {
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// TODO hack around circular dependencies problems
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injector.getInstance(GatewayAllocator.class).setReallocation(injector.getInstance(ClusterService.class), injector.getInstance(RoutingService.class));
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DiscoveryService discoService = injector.getInstance(DiscoveryService.class).start();
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discoService.waitForInitialState();
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// gateway should start after disco, so it can try and recovery from gateway on "start"
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injector.getInstance(ResourceWatcherService.class).start();
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injector.getInstance(GatewayService.class).start();
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// Start the transport service now so the publish address will be added to the local disco node in ClusterService
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TransportService transportService = injector.getInstance(TransportService.class);
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transportService.start();
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injector.getInstance(ClusterService.class).start();
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// start after cluster service so the local disco is known
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DiscoveryService discoService = injector.getInstance(DiscoveryService.class).start();
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transportService.acceptIncomingRequests();
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discoService.joinClusterAndWaitForInitialState();
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if (settings.getAsBoolean("http.enabled", true)) {
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injector.getInstance(HttpServer.class).start();
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}
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injector.getInstance(ResourceWatcherService.class).start();
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injector.getInstance(TribeService.class).start();
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if (WRITE_PORTS_FIELD_SETTING.get(settings)) {
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@ -54,8 +54,8 @@ import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.CopyOnWriteArrayList;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ScheduledFuture;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.function.Function;
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import java.util.function.Supplier;
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@ -71,7 +71,7 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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public static final String DIRECT_RESPONSE_PROFILE = ".direct";
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private final AtomicBoolean started = new AtomicBoolean(false);
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private final CountDownLatch blockIncomingRequestsLatch = new CountDownLatch(1);
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protected final Transport transport;
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protected final ThreadPool threadPool;
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protected final TaskManager taskManager;
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@ -167,6 +167,7 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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void setTracerLogExclude(List<String> tracelLogExclude) {
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this.tracelLogExclude = tracelLogExclude.toArray(Strings.EMPTY_ARRAY);
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}
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@Override
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protected void doStart() {
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adapter.rxMetric.clear();
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@ -179,14 +180,10 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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logger.info("profile [{}]: {}", entry.getKey(), entry.getValue());
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}
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}
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boolean setStarted = started.compareAndSet(false, true);
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assert setStarted : "service was already started";
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}
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@Override
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protected void doStop() {
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final boolean setStopped = started.compareAndSet(true, false);
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assert setStopped : "service has already been stopped";
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try {
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transport.stop();
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} finally {
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@ -213,6 +210,15 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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transport.close();
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}
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/**
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* start accepting incoming requests.
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* when the transport layer starts up it will block any incoming requests until
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* this method is called
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*/
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public void acceptIncomingRequests() {
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blockIncomingRequestsLatch.countDown();
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}
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public boolean addressSupported(Class<? extends TransportAddress> address) {
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return transport.addressSupported(address);
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}
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@ -302,7 +308,7 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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timeoutHandler = new TimeoutHandler(requestId);
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}
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clientHandlers.put(requestId, new RequestHolder<>(new ContextRestoreResponseHandler<T>(threadPool.getThreadContext().newStoredContext(), handler), node, action, timeoutHandler));
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if (started.get() == false) {
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if (lifecycle.stoppedOrClosed()) {
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// if we are not started the exception handling will remove the RequestHolder again and calls the handler to notify the caller.
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// it will only notify if the toStop code hasn't done the work yet.
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throw new TransportException("TransportService is closed stopped can't send request");
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@ -405,6 +411,7 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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/**
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* Registers a new request handler
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*
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* @param action The action the request handler is associated with
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* @param requestFactory a callable to be used construct new instances for streaming
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* @param executor The executor the request handling will be executed on
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@ -417,6 +424,7 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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/**
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* Registers a new request handler
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*
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* @param action The action the request handler is associated with
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* @param request The request class that will be used to constrcut new instances for streaming
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* @param executor The executor the request handling will be executed on
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@ -494,6 +502,11 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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@Override
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public void onRequestReceived(long requestId, String action) {
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try {
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blockIncomingRequestsLatch.await();
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} catch (InterruptedException e) {
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logger.trace("interrupted while waiting for incoming requests block to be removed");
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}
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if (traceEnabled() && shouldTraceAction(action)) {
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traceReceivedRequest(requestId, action);
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}
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@ -729,6 +742,7 @@ public class TransportService extends AbstractLifecycleComponent<TransportServic
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private final static class ContextRestoreResponseHandler<T extends TransportResponse> implements TransportResponseHandler<T> {
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private final TransportResponseHandler<T> delegate;
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private final ThreadContext.StoredContext threadContext;
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private ContextRestoreResponseHandler(ThreadContext.StoredContext threadContext, TransportResponseHandler<T> delegate) {
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this.delegate = delegate;
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this.threadContext = threadContext;
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@ -203,6 +203,7 @@ public abstract class TaskManagerTestCase extends ESTestCase {
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actionFilters, indexNameExpressionResolver);
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transportCancelTasksAction = new TransportCancelTasksAction(settings, clusterName, threadPool, clusterService, transportService,
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actionFilters, indexNameExpressionResolver);
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transportService.acceptIncomingRequests();
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}
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public final TestClusterService clusterService;
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@ -185,6 +185,7 @@ public class TransportBroadcastByNodeActionTests extends ESTestCase {
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clusterService = new TestClusterService(THREAD_POOL);
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final TransportService transportService = new TransportService(transport, THREAD_POOL);
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transportService.start();
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transportService.acceptIncomingRequests();
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setClusterState(clusterService, TEST_INDEX);
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action = new TestTransportBroadcastByNodeAction(
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Settings.EMPTY,
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@ -84,6 +84,7 @@ public class TransportMasterNodeActionTests extends ESTestCase {
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clusterService = new TestClusterService(threadPool);
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transportService = new TransportService(transport, threadPool);
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transportService.start();
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transportService.acceptIncomingRequests();
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localNode = new DiscoveryNode("local_node", DummyTransportAddress.INSTANCE, Version.CURRENT);
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remoteNode = new DiscoveryNode("remote_node", DummyTransportAddress.INSTANCE, Version.CURRENT);
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allNodes = new DiscoveryNode[] { localNode, remoteNode };
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@ -88,6 +88,7 @@ public class BroadcastReplicationTests extends ESTestCase {
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clusterService = new TestClusterService(threadPool);
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transportService = new TransportService(transport, threadPool);
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transportService.start();
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transportService.acceptIncomingRequests();
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broadcastReplicationAction = new TestBroadcastReplicationAction(Settings.EMPTY, threadPool, clusterService, transportService, new ActionFilters(new HashSet<ActionFilter>()), new IndexNameExpressionResolver(Settings.EMPTY), null);
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}
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@ -18,8 +18,6 @@
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*/
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package org.elasticsearch.action.support.replication;
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import com.carrotsearch.randomizedtesting.annotations.Repeat;
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import org.apache.lucene.index.CorruptIndexException;
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import org.elasticsearch.ElasticsearchException;
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import org.elasticsearch.action.ReplicationResponse;
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@ -126,6 +124,7 @@ public class TransportReplicationActionTests extends ESTestCase {
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clusterService = new TestClusterService(threadPool);
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transportService = new TransportService(transport, threadPool);
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transportService.start();
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transportService.acceptIncomingRequests();
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action = new Action(Settings.EMPTY, "testAction", transportService, clusterService, threadPool);
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count.set(1);
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}
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@ -141,6 +141,7 @@ public class TransportInstanceSingleOperationActionTests extends ESTestCase {
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clusterService = new TestClusterService(THREAD_POOL);
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transportService = new TransportService(transport, THREAD_POOL);
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transportService.start();
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transportService.acceptIncomingRequests();
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action = new TestTransportInstanceSingleOperationAction(
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Settings.EMPTY,
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"indices:admin/test",
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@ -73,6 +73,7 @@ public class TransportClientNodesServiceTests extends ESTestCase {
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};
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transportService = new TransportService(Settings.EMPTY, transport, threadPool, new NamedWriteableRegistry());
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transportService.start();
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transportService.acceptIncomingRequests();
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transportClientNodesService = new TransportClientNodesService(Settings.EMPTY, ClusterName.DEFAULT, transportService, threadPool, Version.CURRENT);
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nodesCount = randomIntBetween(1, 10);
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@ -107,6 +107,7 @@ public class ShardStateActionTests extends ESTestCase {
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clusterService = new TestClusterService(THREAD_POOL);
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transportService = new TransportService(transport, THREAD_POOL);
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transportService.start();
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transportService.acceptIncomingRequests();
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shardStateAction = new TestShardStateAction(Settings.EMPTY, clusterService, transportService, null, null);
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shardStateAction.setOnBeforeWaitForNewMasterAndRetry(() -> {});
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shardStateAction.setOnAfterWaitForNewMasterAndRetry(() -> {});
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@ -108,6 +108,7 @@ public class ZenFaultDetectionTests extends ESTestCase {
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MockTransportService transportService = new MockTransportService(Settings.EMPTY,
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new LocalTransport(settings, threadPool, version, namedWriteableRegistry), threadPool, namedWriteableRegistry);
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transportService.start();
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transportService.acceptIncomingRequests();
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return transportService;
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}
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@ -58,12 +58,14 @@ public class UnicastZenPingIT extends ESTestCase {
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NettyTransport transportA = new NettyTransport(settings, threadPool, networkService, BigArrays.NON_RECYCLING_INSTANCE, Version.CURRENT, new NamedWriteableRegistry());
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final TransportService transportServiceA = new TransportService(transportA, threadPool).start();
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transportServiceA.acceptIncomingRequests();
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final DiscoveryNode nodeA = new DiscoveryNode("UZP_A", transportServiceA.boundAddress().publishAddress(), Version.CURRENT);
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InetSocketTransportAddress addressA = (InetSocketTransportAddress) transportA.boundAddress().publishAddress();
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NettyTransport transportB = new NettyTransport(settings, threadPool, networkService, BigArrays.NON_RECYCLING_INSTANCE, Version.CURRENT, new NamedWriteableRegistry());
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final TransportService transportServiceB = new TransportService(transportB, threadPool).start();
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transportServiceB.acceptIncomingRequests();
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final DiscoveryNode nodeB = new DiscoveryNode("UZP_B", transportServiceA.boundAddress().publishAddress(), Version.CURRENT);
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InetSocketTransportAddress addressB = (InetSocketTransportAddress) transportB.boundAddress().publishAddress();
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@ -232,6 +232,7 @@ public class PublishClusterStateActionTests extends ESTestCase {
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protected MockTransportService buildTransportService(Settings settings, Version version) {
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MockTransportService transportService = MockTransportService.local(Settings.EMPTY, version, threadPool);
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transportService.start();
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transportService.acceptIncomingRequests();
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return transportService;
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}
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@ -72,6 +72,11 @@ public class NoopDiscovery implements Discovery {
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return null;
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}
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@Override
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public void startInitialJoin() {
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||||
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||||
}
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||||
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||||
@Override
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||||
public int getMinimumMasterNodes() {
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return -1;
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||||
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@ -40,6 +40,7 @@ import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.Semaphore;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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||||
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||||
import static java.util.Collections.emptyMap;
|
||||
|
|
@ -74,11 +75,13 @@ public abstract class AbstractSimpleTransportTestCase extends ESTestCase {
|
|||
Settings.builder().put("name", "TS_A", TransportService.TRACE_LOG_INCLUDE_SETTING.getKey(), "", TransportService.TRACE_LOG_EXCLUDE_SETTING.getKey(), "NOTHING").build(),
|
||||
version0, new NamedWriteableRegistry()
|
||||
);
|
||||
serviceA.acceptIncomingRequests();
|
||||
nodeA = new DiscoveryNode("TS_A", "TS_A", serviceA.boundAddress().publishAddress(), emptyMap(), version0);
|
||||
serviceB = build(
|
||||
Settings.builder().put("name", "TS_B", TransportService.TRACE_LOG_INCLUDE_SETTING.getKey(), "", TransportService.TRACE_LOG_EXCLUDE_SETTING.getKey(), "NOTHING").build(),
|
||||
version1, new NamedWriteableRegistry()
|
||||
);
|
||||
serviceB.acceptIncomingRequests();
|
||||
nodeB = new DiscoveryNode("TS_B", "TS_B", serviceB.boundAddress().publishAddress(), emptyMap(), version1);
|
||||
|
||||
// wait till all nodes are properly connected and the event has been sent, so tests in this class
|
||||
|
|
@ -1254,6 +1257,54 @@ public abstract class AbstractSimpleTransportTestCase extends ESTestCase {
|
|||
assertTrue(nodeB.address().sameHost(addressB.get()));
|
||||
}
|
||||
|
||||
public void testBlockingIncomingRequests() throws Exception {
|
||||
TransportService service = build(
|
||||
Settings.builder().put("name", "TS_TEST", TransportService.TRACE_LOG_INCLUDE_SETTING.getKey(), "", TransportService.TRACE_LOG_EXCLUDE_SETTING.getKey(), "NOTHING").build(),
|
||||
version0, new NamedWriteableRegistry()
|
||||
);
|
||||
AtomicBoolean requestProcessed = new AtomicBoolean();
|
||||
service.registerRequestHandler("action", TestRequest::new, ThreadPool.Names.SAME,
|
||||
(request, channel) -> {
|
||||
requestProcessed.set(true);
|
||||
channel.sendResponse(TransportResponse.Empty.INSTANCE);
|
||||
});
|
||||
|
||||
DiscoveryNode node = new DiscoveryNode("TS_TEST", "TS_TEST", service.boundAddress().publishAddress(), emptyMap(), version0);
|
||||
serviceA.connectToNode(node);
|
||||
|
||||
CountDownLatch latch = new CountDownLatch(1);
|
||||
serviceA.sendRequest(node, "action", new TestRequest(), new TransportResponseHandler<TestResponse>() {
|
||||
@Override
|
||||
public TestResponse newInstance() {
|
||||
return new TestResponse();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handleResponse(TestResponse response) {
|
||||
latch.countDown();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handleException(TransportException exp) {
|
||||
latch.countDown();
|
||||
}
|
||||
|
||||
@Override
|
||||
public String executor() {
|
||||
return ThreadPool.Names.SAME;
|
||||
}
|
||||
});
|
||||
|
||||
assertFalse(requestProcessed.get());
|
||||
|
||||
service.acceptIncomingRequests();
|
||||
assertBusy(() -> assertTrue(requestProcessed.get()));
|
||||
|
||||
latch.await();
|
||||
service.close();
|
||||
|
||||
}
|
||||
|
||||
public static class TestRequest extends TransportRequest {
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -56,11 +56,13 @@ public class NettyScheduledPingTests extends ESTestCase {
|
|||
final NettyTransport nettyA = new NettyTransport(settings, threadPool, new NetworkService(settings), BigArrays.NON_RECYCLING_INSTANCE, Version.CURRENT, registryA);
|
||||
MockTransportService serviceA = new MockTransportService(settings, nettyA, threadPool, registryA);
|
||||
serviceA.start();
|
||||
serviceA.acceptIncomingRequests();
|
||||
|
||||
NamedWriteableRegistry registryB = new NamedWriteableRegistry();
|
||||
final NettyTransport nettyB = new NettyTransport(settings, threadPool, new NetworkService(settings), BigArrays.NON_RECYCLING_INSTANCE, Version.CURRENT, registryB);
|
||||
MockTransportService serviceB = new MockTransportService(settings, nettyB, threadPool, registryB);
|
||||
serviceB.start();
|
||||
serviceB.acceptIncomingRequests();
|
||||
|
||||
DiscoveryNode nodeA = new DiscoveryNode("TS_A", "TS_A", serviceA.boundAddress().publishAddress(), emptyMap(), Version.CURRENT);
|
||||
DiscoveryNode nodeB = new DiscoveryNode("TS_B", "TS_B", serviceB.boundAddress().publishAddress(), emptyMap(), Version.CURRENT);
|
||||
|
|
|
|||
Loading…
Reference in New Issue