org.elasticsearch.transport.AbstractSimpleTransportTestCase Maven / Gradle / Ivy
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* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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* KIND, either express or implied. See the License for the
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package org.elasticsearch.transport;
import org.apache.logging.log4j.message.ParameterizedMessage;
import org.apache.logging.log4j.util.Supplier;
import org.apache.lucene.util.CollectionUtil;
import org.apache.lucene.util.Constants;
import org.apache.lucene.util.IOUtils;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.Version;
import org.elasticsearch.action.ActionListenerResponseHandler;
import org.elasticsearch.action.support.PlainActionFuture;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.network.NetworkService;
import org.elasticsearch.common.settings.ClusterSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.util.BigArrays;
import org.elasticsearch.common.util.concurrent.AbstractRunnable;
import org.elasticsearch.common.util.concurrent.ConcurrentCollections;
import org.elasticsearch.indices.breaker.NoneCircuitBreakerService;
import org.elasticsearch.node.Node;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.VersionUtils;
import org.elasticsearch.test.transport.MockTransportService;
import org.elasticsearch.threadpool.TestThreadPool;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.local.LocalTransport;
import org.junit.After;
import org.junit.Before;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import static java.util.Collections.emptyMap;
import static java.util.Collections.emptySet;
import static org.hamcrest.Matchers.empty;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.startsWith;
public abstract class AbstractSimpleTransportTestCase extends ESTestCase {
protected ThreadPool threadPool;
protected static final Version version0 = Version.CURRENT.minimumCompatibilityVersion();
private ClusterSettings clusterSettings;
protected volatile DiscoveryNode nodeA;
protected volatile MockTransportService serviceA;
protected static final Version version1 = Version.fromId(Version.CURRENT.id + 1);
protected volatile DiscoveryNode nodeB;
protected volatile MockTransportService serviceB;
protected abstract MockTransportService build(Settings settings, Version version, ClusterSettings clusterSettings, boolean doHandshake);
@Override
@Before
public void setUp() throws Exception {
super.setUp();
threadPool = new TestThreadPool(getClass().getName());
clusterSettings = new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS);
serviceA = buildService("TS_A", version0, clusterSettings); // this one supports dynamic tracer updates
nodeA = serviceA.getLocalNode();
serviceB = buildService("TS_B", version1, null); // this one doesn't support dynamic tracer updates
nodeB = serviceB.getLocalNode();
// wait till all nodes are properly connected and the event has been sent, so tests in this class
// will not get this callback called on the connections done in this setup
final CountDownLatch latch = new CountDownLatch(2);
TransportConnectionListener waitForConnection = new TransportConnectionListener() {
@Override
public void onNodeConnected(DiscoveryNode node) {
latch.countDown();
}
@Override
public void onNodeDisconnected(DiscoveryNode node) {
fail("disconnect should not be called " + node);
}
};
serviceA.addConnectionListener(waitForConnection);
serviceB.addConnectionListener(waitForConnection);
int numHandshakes = 1;
serviceA.connectToNode(nodeB);
serviceB.connectToNode(nodeA);
assertNumHandshakes(numHandshakes, serviceA.getOriginalTransport());
assertNumHandshakes(numHandshakes, serviceB.getOriginalTransport());
assertThat("failed to wait for all nodes to connect", latch.await(5, TimeUnit.SECONDS), equalTo(true));
serviceA.removeConnectionListener(waitForConnection);
serviceB.removeConnectionListener(waitForConnection);
}
private MockTransportService buildService(final String name, final Version version, ClusterSettings clusterSettings,
Settings settings, boolean acceptRequests, boolean doHandshake) {
MockTransportService service = build(
Settings.builder()
.put(settings)
.put(Node.NODE_NAME_SETTING.getKey(), name)
.put(TransportService.TRACE_LOG_INCLUDE_SETTING.getKey(), "")
.put(TransportService.TRACE_LOG_EXCLUDE_SETTING.getKey(), "NOTHING")
.build(),
version,
clusterSettings, doHandshake);
if (acceptRequests) {
service.acceptIncomingRequests();
}
return service;
}
private MockTransportService buildService(final String name, final Version version, ClusterSettings clusterSettings) {
return buildService(name, version, clusterSettings, Settings.EMPTY, true, true);
}
@Override
@After
public void tearDown() throws Exception {
super.tearDown();
try {
assertNoPendingHandshakes(serviceA.getOriginalTransport());
assertNoPendingHandshakes(serviceB.getOriginalTransport());
assertPendingConnections(0, serviceA.getOriginalTransport());
assertPendingConnections(0, serviceB.getOriginalTransport());
} finally {
IOUtils.close(serviceA, serviceB, () -> {
try {
terminate(threadPool);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
});
}
}
public void assertNumHandshakes(long expected, Transport transport) {
if (transport instanceof TcpTransport) {
assertEquals(expected, ((TcpTransport) transport).getNumHandshakes());
}
}
public void assertNoPendingHandshakes(Transport transport) {
if (transport instanceof TcpTransport) {
assertEquals(0, ((TcpTransport) transport).getNumPendingHandshakes());
}
}
public void assertPendingConnections(int numConnections, Transport transport) {
if (transport instanceof TcpTransport) {
TcpTransport tcpTransport = (TcpTransport) transport;
assertEquals(numConnections, tcpTransport.getNumOpenConnections() - tcpTransport.getNumConnectedNodes());
}
}
public void testHelloWorld() {
serviceA.registerRequestHandler("sayHello", StringMessageRequest::new, ThreadPool.Names.GENERIC,
(request, channel) -> {
assertThat("moshe", equalTo(request.message));
try {
channel.sendResponse(new StringMessageResponse("hello " + request.message));
} catch (IOException e) {
logger.error("Unexpected failure", e);
fail(e.getMessage());
}
});
TransportFuture res = serviceB.submitRequest(nodeA, "sayHello",
new StringMessageRequest("moshe"), new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
assertThat("hello moshe", equalTo(response.message));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
});
try {
StringMessageResponse message = res.get();
assertThat("hello moshe", equalTo(message.message));
} catch (Exception e) {
assertThat(e.getMessage(), false, equalTo(true));
}
res = serviceB.submitRequest(nodeA, "sayHello", new StringMessageRequest("moshe"),
TransportRequestOptions.builder().withCompress(true).build(), new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
assertThat("hello moshe", equalTo(response.message));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
});
try {
StringMessageResponse message = res.get();
assertThat("hello moshe", equalTo(message.message));
} catch (Exception e) {
assertThat(e.getMessage(), false, equalTo(true));
}
}
public void testThreadContext() throws ExecutionException, InterruptedException {
serviceA.registerRequestHandler("ping_pong", StringMessageRequest::new, ThreadPool.Names.GENERIC, (request, channel) -> {
assertEquals("ping_user", threadPool.getThreadContext().getHeader("test.ping.user"));
assertNull(threadPool.getThreadContext().getTransient("my_private_context"));
try {
StringMessageResponse response = new StringMessageResponse("pong");
threadPool.getThreadContext().putHeader("test.pong.user", "pong_user");
channel.sendResponse(response);
} catch (IOException e) {
logger.error("Unexpected failure", e);
fail(e.getMessage());
}
});
final Object context = new Object();
final String executor = randomFrom(ThreadPool.THREAD_POOL_TYPES.keySet().toArray(new String[0]));
TransportResponseHandler responseHandler = new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return executor;
}
@Override
public void handleResponse(StringMessageResponse response) {
assertThat("pong", equalTo(response.message));
assertEquals("ping_user", threadPool.getThreadContext().getHeader("test.ping.user"));
assertNull(threadPool.getThreadContext().getHeader("test.pong.user"));
assertSame(context, threadPool.getThreadContext().getTransient("my_private_context"));
threadPool.getThreadContext().putHeader("some.temp.header", "booooom");
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
};
StringMessageRequest ping = new StringMessageRequest("ping");
threadPool.getThreadContext().putHeader("test.ping.user", "ping_user");
threadPool.getThreadContext().putTransient("my_private_context", context);
TransportFuture res = serviceB.submitRequest(nodeA, "ping_pong", ping, responseHandler);
StringMessageResponse message = res.get();
assertThat("pong", equalTo(message.message));
assertEquals("ping_user", threadPool.getThreadContext().getHeader("test.ping.user"));
assertSame(context, threadPool.getThreadContext().getTransient("my_private_context"));
assertNull("this header is only visible in the handler context", threadPool.getThreadContext().getHeader("some.temp.header"));
}
public void testLocalNodeConnection() throws InterruptedException {
assertTrue("serviceA is not connected to nodeA", serviceA.nodeConnected(nodeA));
// this should be a noop
serviceA.disconnectFromNode(nodeA);
final AtomicReference exception = new AtomicReference<>();
serviceA.registerRequestHandler("localNode", StringMessageRequest::new, ThreadPool.Names.GENERIC,
(request, channel) -> {
try {
channel.sendResponse(new StringMessageResponse(request.message));
} catch (IOException e) {
exception.set(e);
}
});
final AtomicReference responseString = new AtomicReference<>();
final CountDownLatch responseLatch = new CountDownLatch(1);
serviceA.sendRequest(nodeA, "localNode", new StringMessageRequest("test"), new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public void handleResponse(StringMessageResponse response) {
responseString.set(response.message);
responseLatch.countDown();
}
@Override
public void handleException(TransportException exp) {
exception.set(exp);
responseLatch.countDown();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
});
responseLatch.await();
assertNull(exception.get());
assertThat(responseString.get(), equalTo("test"));
}
public void testAdapterSendReceiveCallbacks() throws Exception {
final TransportRequestHandler requestHandler = (request, channel) -> {
try {
if (randomBoolean()) {
channel.sendResponse(TransportResponse.Empty.INSTANCE);
} else {
channel.sendResponse(new ElasticsearchException("simulated"));
}
} catch (IOException e) {
logger.error("Unexpected failure", e);
fail(e.getMessage());
}
};
final String ACTION = "action";
serviceA.registerRequestHandler(ACTION, TransportRequest.Empty::new, ThreadPool.Names.GENERIC,
requestHandler);
serviceB.registerRequestHandler(ACTION, TransportRequest.Empty::new, ThreadPool.Names.GENERIC,
requestHandler);
class CountingTracer extends MockTransportService.Tracer {
AtomicInteger requestsReceived = new AtomicInteger();
AtomicInteger requestsSent = new AtomicInteger();
AtomicInteger responseReceived = new AtomicInteger();
AtomicInteger responseSent = new AtomicInteger();
@Override
public void receivedRequest(long requestId, String action) {
if (action.equals(ACTION)) {
requestsReceived.incrementAndGet();
}
}
@Override
public void responseSent(long requestId, String action) {
if (action.equals(ACTION)) {
responseSent.incrementAndGet();
}
}
@Override
public void responseSent(long requestId, String action, Throwable t) {
if (action.equals(ACTION)) {
responseSent.incrementAndGet();
}
}
@Override
public void receivedResponse(long requestId, DiscoveryNode sourceNode, String action) {
if (action.equals(ACTION)) {
responseReceived.incrementAndGet();
}
}
@Override
public void requestSent(DiscoveryNode node, long requestId, String action, TransportRequestOptions options) {
if (action.equals(ACTION)) {
requestsSent.incrementAndGet();
}
}
}
final CountingTracer tracerA = new CountingTracer();
final CountingTracer tracerB = new CountingTracer();
serviceA.addTracer(tracerA);
serviceB.addTracer(tracerB);
try {
serviceA
.submitRequest(nodeB, ACTION, TransportRequest.Empty.INSTANCE, EmptyTransportResponseHandler.INSTANCE_SAME).get();
} catch (ExecutionException e) {
assertThat(e.getCause(), instanceOf(ElasticsearchException.class));
assertThat(ExceptionsHelper.unwrapCause(e.getCause()).getMessage(), equalTo("simulated"));
}
// use assert busy as call backs are sometime called after the response have been sent
assertBusy(() -> {
assertThat(tracerA.requestsReceived.get(), equalTo(0));
assertThat(tracerA.requestsSent.get(), equalTo(1));
assertThat(tracerA.responseReceived.get(), equalTo(1));
assertThat(tracerA.responseSent.get(), equalTo(0));
assertThat(tracerB.requestsReceived.get(), equalTo(1));
assertThat(tracerB.requestsSent.get(), equalTo(0));
assertThat(tracerB.responseReceived.get(), equalTo(0));
assertThat(tracerB.responseSent.get(), equalTo(1));
});
try {
serviceA
.submitRequest(nodeA, ACTION, TransportRequest.Empty.INSTANCE, EmptyTransportResponseHandler.INSTANCE_SAME).get();
} catch (ExecutionException e) {
assertThat(e.getCause(), instanceOf(ElasticsearchException.class));
assertThat(ExceptionsHelper.unwrapCause(e.getCause()).getMessage(), equalTo("simulated"));
}
// use assert busy as call backs are sometime called after the response have been sent
assertBusy(() -> {
assertThat(tracerA.requestsReceived.get(), equalTo(1));
assertThat(tracerA.requestsSent.get(), equalTo(2));
assertThat(tracerA.responseReceived.get(), equalTo(2));
assertThat(tracerA.responseSent.get(), equalTo(1));
assertThat(tracerB.requestsReceived.get(), equalTo(1));
assertThat(tracerB.requestsSent.get(), equalTo(0));
assertThat(tracerB.responseReceived.get(), equalTo(0));
assertThat(tracerB.responseSent.get(), equalTo(1));
});
}
public void testVoidMessageCompressed() {
serviceA.registerRequestHandler("sayHello", TransportRequest.Empty::new, ThreadPool.Names.GENERIC,
(request, channel) -> {
try {
TransportResponseOptions responseOptions = TransportResponseOptions.builder().withCompress(true).build();
channel.sendResponse(TransportResponse.Empty.INSTANCE, responseOptions);
} catch (IOException e) {
logger.error("Unexpected failure", e);
fail(e.getMessage());
}
});
TransportFuture res = serviceB.submitRequest(nodeA, "sayHello",
TransportRequest.Empty.INSTANCE, TransportRequestOptions.builder().withCompress(true).build(),
new TransportResponseHandler() {
@Override
public TransportResponse.Empty newInstance() {
return TransportResponse.Empty.INSTANCE;
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(TransportResponse.Empty response) {
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
});
try {
TransportResponse.Empty message = res.get();
assertThat(message, notNullValue());
} catch (Exception e) {
assertThat(e.getMessage(), false, equalTo(true));
}
}
public void testHelloWorldCompressed() {
serviceA.registerRequestHandler("sayHello", StringMessageRequest::new, ThreadPool.Names.GENERIC,
new TransportRequestHandler() {
@Override
public void messageReceived(StringMessageRequest request, TransportChannel channel) {
assertThat("moshe", equalTo(request.message));
try {
TransportResponseOptions responseOptions = TransportResponseOptions.builder().withCompress(true).build();
channel.sendResponse(new StringMessageResponse("hello " + request.message), responseOptions);
} catch (IOException e) {
logger.error("Unexpected failure", e);
fail(e.getMessage());
}
}
});
TransportFuture res = serviceB.submitRequest(nodeA, "sayHello",
new StringMessageRequest("moshe"), TransportRequestOptions.builder().withCompress(true).build(),
new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
assertThat("hello moshe", equalTo(response.message));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
});
try {
StringMessageResponse message = res.get();
assertThat("hello moshe", equalTo(message.message));
} catch (Exception e) {
assertThat(e.getMessage(), false, equalTo(true));
}
}
public void testErrorMessage() {
serviceA.registerRequestHandler("sayHelloException", StringMessageRequest::new, ThreadPool.Names.GENERIC,
new TransportRequestHandler() {
@Override
public void messageReceived(StringMessageRequest request, TransportChannel channel) throws Exception {
assertThat("moshe", equalTo(request.message));
throw new RuntimeException("bad message !!!");
}
});
TransportFuture res = serviceB.submitRequest(nodeA, "sayHelloException",
new StringMessageRequest("moshe"), new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
fail("got response instead of exception");
}
@Override
public void handleException(TransportException exp) {
assertThat("runtime_exception: bad message !!!", equalTo(exp.getCause().getMessage()));
}
});
try {
res.txGet();
fail("exception should be thrown");
} catch (Exception e) {
assertThat(e.getCause().getMessage(), equalTo("runtime_exception: bad message !!!"));
}
}
public void testDisconnectListener() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
TransportConnectionListener disconnectListener = new TransportConnectionListener() {
@Override
public void onNodeConnected(DiscoveryNode node) {
fail("node connected should not be called, all connection have been done previously, node: " + node);
}
@Override
public void onNodeDisconnected(DiscoveryNode node) {
latch.countDown();
}
};
serviceA.addConnectionListener(disconnectListener);
serviceB.close();
assertThat(latch.await(5, TimeUnit.SECONDS), equalTo(true));
}
public void testConcurrentSendRespondAndDisconnect() throws BrokenBarrierException, InterruptedException {
Set sendingErrors = ConcurrentCollections.newConcurrentSet();
Set responseErrors = ConcurrentCollections.newConcurrentSet();
serviceA.registerRequestHandler("test", TestRequest::new,
randomBoolean() ? ThreadPool.Names.SAME : ThreadPool.Names.GENERIC, (request, channel) -> {
try {
channel.sendResponse(new TestResponse());
} catch (Exception e) {
logger.info("caught exception while responding", e);
responseErrors.add(e);
}
});
final TransportRequestHandler ignoringRequestHandler = (request, channel) -> {
try {
channel.sendResponse(new TestResponse());
} catch (Exception e) {
// we don't really care what's going on B, we're testing through A
logger.trace("caught exception while responding from node B", e);
}
};
serviceB.registerRequestHandler("test", TestRequest::new, ThreadPool.Names.SAME, ignoringRequestHandler);
int halfSenders = scaledRandomIntBetween(3, 10);
final CyclicBarrier go = new CyclicBarrier(halfSenders * 2 + 1);
final CountDownLatch done = new CountDownLatch(halfSenders * 2);
for (int i = 0; i < halfSenders; i++) {
// B senders just generated activity so serciveA can respond, we don't test what's going on there
final int sender = i;
threadPool.executor(ThreadPool.Names.GENERIC).execute(new AbstractRunnable() {
@Override
public void onFailure(Exception e) {
logger.trace("caught exception while sending from B", e);
}
@Override
protected void doRun() throws Exception {
go.await();
for (int iter = 0; iter < 10; iter++) {
PlainActionFuture listener = new PlainActionFuture<>();
final String info = sender + "_B_" + iter;
serviceB.sendRequest(nodeA, "test", new TestRequest(info),
new ActionListenerResponseHandler<>(listener, TestResponse::new));
try {
listener.actionGet();
} catch (Exception e) {
logger.trace(
(Supplier) () -> new ParameterizedMessage("caught exception while sending to node {}", nodeA), e);
}
}
}
@Override
public void onAfter() {
done.countDown();
}
});
}
for (int i = 0; i < halfSenders; i++) {
final int sender = i;
threadPool.executor(ThreadPool.Names.GENERIC).execute(new AbstractRunnable() {
@Override
public void onFailure(Exception e) {
logger.error("unexpected error", e);
sendingErrors.add(e);
}
@Override
protected void doRun() throws Exception {
go.await();
for (int iter = 0; iter < 10; iter++) {
PlainActionFuture listener = new PlainActionFuture<>();
final String info = sender + "_" + iter;
final DiscoveryNode node = nodeB; // capture now
try {
serviceA.sendRequest(node, "test", new TestRequest(info),
new ActionListenerResponseHandler<>(listener, TestResponse::new));
try {
listener.actionGet();
} catch (ConnectTransportException e) {
// ok!
} catch (Exception e) {
logger.error(
(Supplier) () -> new ParameterizedMessage("caught exception while sending to node {}", node), e);
sendingErrors.add(e);
}
} catch (NodeNotConnectedException ex) {
// ok
}
}
}
@Override
public void onAfter() {
done.countDown();
}
});
}
go.await();
for (int i = 0; i <= 10; i++) {
if (i % 3 == 0) {
// simulate restart of nodeB
serviceB.close();
MockTransportService newService = buildService("TS_B_" + i, version1, null);
newService.registerRequestHandler("test", TestRequest::new, ThreadPool.Names.SAME, ignoringRequestHandler);
serviceB = newService;
nodeB = newService.getLocalDiscoNode();
serviceB.connectToNode(nodeA);
serviceA.connectToNode(nodeB);
} else if (serviceA.nodeConnected(nodeB)) {
serviceA.disconnectFromNode(nodeB);
} else {
serviceA.connectToNode(nodeB);
}
}
done.await();
assertThat("found non connection errors while sending", sendingErrors, empty());
assertThat("found non connection errors while responding", responseErrors, empty());
}
public void testNotifyOnShutdown() throws Exception {
final CountDownLatch latch2 = new CountDownLatch(1);
try {
serviceA.registerRequestHandler("foobar", StringMessageRequest::new, ThreadPool.Names.GENERIC,
(request, channel) -> {
try {
latch2.await();
logger.info("Stop ServiceB now");
serviceB.stop();
} catch (Exception e) {
fail(e.getMessage());
}
});
TransportFuture foobar = serviceB.submitRequest(nodeA, "foobar",
new StringMessageRequest(""), TransportRequestOptions.EMPTY, EmptyTransportResponseHandler.INSTANCE_SAME);
latch2.countDown();
try {
foobar.txGet();
fail("TransportException expected");
} catch (TransportException ex) {
}
} finally {
serviceB.close(); // make sure we are fully closed here otherwise we might run into assertions down the road
serviceA.disconnectFromNode(nodeB);
}
}
public void testTimeoutSendExceptionWithNeverSendingBackResponse() throws Exception {
serviceA.registerRequestHandler("sayHelloTimeoutNoResponse", StringMessageRequest::new, ThreadPool.Names.GENERIC,
new TransportRequestHandler() {
@Override
public void messageReceived(StringMessageRequest request, TransportChannel channel) {
assertThat("moshe", equalTo(request.message));
// don't send back a response
}
});
TransportFuture res = serviceB.submitRequest(nodeA, "sayHelloTimeoutNoResponse",
new StringMessageRequest("moshe"), TransportRequestOptions.builder().withTimeout(100).build(),
new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
fail("got response instead of exception");
}
@Override
public void handleException(TransportException exp) {
assertThat(exp, instanceOf(ReceiveTimeoutTransportException.class));
}
});
try {
StringMessageResponse message = res.txGet();
fail("exception should be thrown");
} catch (Exception e) {
assertThat(e, instanceOf(ReceiveTimeoutTransportException.class));
}
}
public void testTimeoutSendExceptionWithDelayedResponse() throws Exception {
CountDownLatch waitForever = new CountDownLatch(1);
CountDownLatch doneWaitingForever = new CountDownLatch(1);
Semaphore inFlight = new Semaphore(Integer.MAX_VALUE);
serviceA.registerRequestHandler("sayHelloTimeoutDelayedResponse", StringMessageRequest::new, ThreadPool.Names.GENERIC,
new TransportRequestHandler() {
@Override
public void messageReceived(StringMessageRequest request, TransportChannel channel) throws InterruptedException {
String message = request.message;
inFlight.acquireUninterruptibly();
try {
if ("forever".equals(message)) {
waitForever.await();
} else {
TimeValue sleep = TimeValue.parseTimeValue(message, null, "sleep");
Thread.sleep(sleep.millis());
}
try {
channel.sendResponse(new StringMessageResponse("hello " + request.message));
} catch (IOException e) {
logger.error("Unexpected failure", e);
fail(e.getMessage());
}
} finally {
inFlight.release();
if ("forever".equals(message)) {
doneWaitingForever.countDown();
}
}
}
});
final CountDownLatch latch = new CountDownLatch(1);
TransportFuture res = serviceB.submitRequest(nodeA, "sayHelloTimeoutDelayedResponse",
new StringMessageRequest("forever"), TransportRequestOptions.builder().withTimeout(100).build(),
new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
latch.countDown();
fail("got response instead of exception");
}
@Override
public void handleException(TransportException exp) {
latch.countDown();
assertThat(exp, instanceOf(ReceiveTimeoutTransportException.class));
}
});
try {
res.txGet();
fail("exception should be thrown");
} catch (Exception e) {
assertThat(e, instanceOf(ReceiveTimeoutTransportException.class));
}
latch.await();
List assertions = new ArrayList<>();
for (int i = 0; i < 10; i++) {
final int counter = i;
// now, try and send another request, this times, with a short timeout
TransportFuture result = serviceB.submitRequest(nodeA, "sayHelloTimeoutDelayedResponse",
new StringMessageRequest(counter + "ms"), TransportRequestOptions.builder().withTimeout(3000).build(),
new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
assertThat("hello " + counter + "ms", equalTo(response.message));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response for " + counter + ": " + exp.getDetailedMessage());
}
});
assertions.add(() -> {
StringMessageResponse message = result.txGet();
assertThat(message.message, equalTo("hello " + counter + "ms"));
});
}
for (Runnable runnable : assertions) {
runnable.run();
}
waitForever.countDown();
doneWaitingForever.await();
assertTrue(inFlight.tryAcquire(Integer.MAX_VALUE, 10, TimeUnit.SECONDS));
}
public void testTracerLog() throws InterruptedException {
TransportRequestHandler handler = (request, channel) -> channel.sendResponse(new StringMessageResponse(""));
TransportRequestHandler handlerWithError = new TransportRequestHandler() {
@Override
public void messageReceived(StringMessageRequest request, TransportChannel channel) throws Exception {
if (request.timeout() > 0) {
Thread.sleep(request.timeout);
}
channel.sendResponse(new RuntimeException(""));
}
};
final Semaphore requestCompleted = new Semaphore(0);
TransportResponseHandler noopResponseHandler = new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public void handleResponse(StringMessageResponse response) {
requestCompleted.release();
}
@Override
public void handleException(TransportException exp) {
requestCompleted.release();
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
};
serviceA.registerRequestHandler("test", StringMessageRequest::new, ThreadPool.Names.SAME, handler);
serviceA.registerRequestHandler("testError", StringMessageRequest::new, ThreadPool.Names.SAME, handlerWithError);
serviceB.registerRequestHandler("test", StringMessageRequest::new, ThreadPool.Names.SAME, handler);
serviceB.registerRequestHandler("testError", StringMessageRequest::new, ThreadPool.Names.SAME, handlerWithError);
final Tracer tracer = new Tracer(new HashSet<>(Arrays.asList("test", "testError")));
// the tracer is invoked concurrently after the actual action is executed. that means a Tracer#requestSent can still be in-flight
// from a handshake executed on connect in the setup method. this might confuse this test since it expects exact number of
// invocations. To prevent any unrelated events messing with this test we filter on the actions we execute in this test.
serviceA.addTracer(tracer);
serviceB.addTracer(tracer);
tracer.reset(4);
boolean timeout = randomBoolean();
TransportRequestOptions options = timeout ? TransportRequestOptions.builder().withTimeout(1).build() :
TransportRequestOptions.EMPTY;
serviceA.sendRequest(nodeB, "test", new StringMessageRequest("", 10), options, noopResponseHandler);
requestCompleted.acquire();
tracer.expectedEvents.get().await();
assertThat("didn't see request sent", tracer.sawRequestSent, equalTo(true));
assertThat("didn't see request received", tracer.sawRequestReceived, equalTo(true));
assertThat("didn't see response sent", tracer.sawResponseSent, equalTo(true));
assertThat("didn't see response received", tracer.sawResponseReceived, equalTo(true));
assertThat("saw error sent", tracer.sawErrorSent, equalTo(false));
tracer.reset(4);
serviceA.sendRequest(nodeB, "testError", new StringMessageRequest(""), noopResponseHandler);
requestCompleted.acquire();
tracer.expectedEvents.get().await();
assertThat("didn't see request sent", tracer.sawRequestSent, equalTo(true));
assertThat("didn't see request received", tracer.sawRequestReceived, equalTo(true));
assertThat("saw response sent", tracer.sawResponseSent, equalTo(false));
assertThat("didn't see response received", tracer.sawResponseReceived, equalTo(true));
assertThat("didn't see error sent", tracer.sawErrorSent, equalTo(true));
String includeSettings;
String excludeSettings;
if (randomBoolean()) {
// sometimes leave include empty (default)
includeSettings = randomBoolean() ? "*" : "";
excludeSettings = "*Error";
} else {
includeSettings = "test";
excludeSettings = "DOESN'T_MATCH";
}
clusterSettings.applySettings(Settings.builder()
.put(TransportService.TRACE_LOG_INCLUDE_SETTING.getKey(), includeSettings)
.put(TransportService.TRACE_LOG_EXCLUDE_SETTING.getKey(), excludeSettings)
.build());
tracer.reset(4);
serviceA.sendRequest(nodeB, "test", new StringMessageRequest(""), noopResponseHandler);
requestCompleted.acquire();
tracer.expectedEvents.get().await();
assertThat("didn't see request sent", tracer.sawRequestSent, equalTo(true));
assertThat("didn't see request received", tracer.sawRequestReceived, equalTo(true));
assertThat("didn't see response sent", tracer.sawResponseSent, equalTo(true));
assertThat("didn't see response received", tracer.sawResponseReceived, equalTo(true));
assertThat("saw error sent", tracer.sawErrorSent, equalTo(false));
tracer.reset(2);
serviceA.sendRequest(nodeB, "testError", new StringMessageRequest(""), noopResponseHandler);
requestCompleted.acquire();
tracer.expectedEvents.get().await();
assertThat("saw request sent", tracer.sawRequestSent, equalTo(false));
assertThat("didn't see request received", tracer.sawRequestReceived, equalTo(true));
assertThat("saw response sent", tracer.sawResponseSent, equalTo(false));
assertThat("saw response received", tracer.sawResponseReceived, equalTo(false));
assertThat("didn't see error sent", tracer.sawErrorSent, equalTo(true));
}
private static class Tracer extends MockTransportService.Tracer {
private final Set actions;
public volatile boolean sawRequestSent;
public volatile boolean sawRequestReceived;
public volatile boolean sawResponseSent;
public volatile boolean sawErrorSent;
public volatile boolean sawResponseReceived;
public AtomicReference expectedEvents = new AtomicReference<>();
Tracer(Set actions) {
this.actions = actions;
}
@Override
public void receivedRequest(long requestId, String action) {
super.receivedRequest(requestId, action);
if (actions.contains(action)) {
sawRequestReceived = true;
expectedEvents.get().countDown();
}
}
@Override
public void requestSent(DiscoveryNode node, long requestId, String action, TransportRequestOptions options) {
super.requestSent(node, requestId, action, options);
if (actions.contains(action)) {
sawRequestSent = true;
expectedEvents.get().countDown();
}
}
@Override
public void responseSent(long requestId, String action) {
super.responseSent(requestId, action);
if (actions.contains(action)) {
sawResponseSent = true;
expectedEvents.get().countDown();
}
}
@Override
public void responseSent(long requestId, String action, Throwable t) {
super.responseSent(requestId, action, t);
if (actions.contains(action)) {
sawErrorSent = true;
expectedEvents.get().countDown();
}
}
@Override
public void receivedResponse(long requestId, DiscoveryNode sourceNode, String action) {
super.receivedResponse(requestId, sourceNode, action);
if (actions.contains(action)) {
sawResponseReceived = true;
expectedEvents.get().countDown();
}
}
public void reset(int expectedCount) {
sawRequestSent = false;
sawRequestReceived = false;
sawResponseSent = false;
sawErrorSent = false;
sawResponseReceived = false;
expectedEvents.set(new CountDownLatch(expectedCount));
}
}
public static class StringMessageRequest extends TransportRequest {
private String message;
private long timeout;
StringMessageRequest(String message, long timeout) {
this.message = message;
this.timeout = timeout;
}
public StringMessageRequest() {
}
public StringMessageRequest(String message) {
this(message, -1);
}
public long timeout() {
return timeout;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
message = in.readString();
timeout = in.readLong();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(message);
out.writeLong(timeout);
}
}
static class StringMessageResponse extends TransportResponse {
private String message;
StringMessageResponse(String message) {
this.message = message;
}
StringMessageResponse() {
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
message = in.readString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(message);
}
}
public static class Version0Request extends TransportRequest {
int value1;
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
value1 = in.readInt();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeInt(value1);
}
}
public static class Version1Request extends Version0Request {
int value2;
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
if (in.getVersion().onOrAfter(version1)) {
value2 = in.readInt();
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (out.getVersion().onOrAfter(version1)) {
out.writeInt(value2);
}
}
}
static class Version0Response extends TransportResponse {
int value1;
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
value1 = in.readInt();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeInt(value1);
}
}
static class Version1Response extends Version0Response {
int value2;
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
if (in.getVersion().onOrAfter(version1)) {
value2 = in.readInt();
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (out.getVersion().onOrAfter(version1)) {
out.writeInt(value2);
}
}
}
public void testVersionFrom0to1() throws Exception {
serviceB.registerRequestHandler("/version", Version1Request::new, ThreadPool.Names.SAME,
new TransportRequestHandler() {
@Override
public void messageReceived(Version1Request request, TransportChannel channel) throws Exception {
assertThat(request.value1, equalTo(1));
assertThat(request.value2, equalTo(0)); // not set, coming from service A
Version1Response response = new Version1Response();
response.value1 = 1;
response.value2 = 2;
channel.sendResponse(response);
assertEquals(version0, channel.getVersion());
}
});
Version0Request version0Request = new Version0Request();
version0Request.value1 = 1;
Version0Response version0Response = serviceA.submitRequest(nodeB, "/version", version0Request,
new TransportResponseHandler() {
@Override
public Version0Response newInstance() {
return new Version0Response();
}
@Override
public void handleResponse(Version0Response response) {
assertThat(response.value1, equalTo(1));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
}).txGet();
assertThat(version0Response.value1, equalTo(1));
}
public void testVersionFrom1to0() throws Exception {
serviceA.registerRequestHandler("/version", Version0Request::new, ThreadPool.Names.SAME,
new TransportRequestHandler() {
@Override
public void messageReceived(Version0Request request, TransportChannel channel) throws Exception {
assertThat(request.value1, equalTo(1));
Version0Response response = new Version0Response();
response.value1 = 1;
channel.sendResponse(response);
assertEquals(version0, channel.getVersion());
}
});
Version1Request version1Request = new Version1Request();
version1Request.value1 = 1;
version1Request.value2 = 2;
Version1Response version1Response = serviceB.submitRequest(nodeA, "/version", version1Request,
new TransportResponseHandler() {
@Override
public Version1Response newInstance() {
return new Version1Response();
}
@Override
public void handleResponse(Version1Response response) {
assertThat(response.value1, equalTo(1));
assertThat(response.value2, equalTo(0)); // initial values, cause its serialized from version 0
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
}).txGet();
assertThat(version1Response.value1, equalTo(1));
assertThat(version1Response.value2, equalTo(0));
}
public void testVersionFrom1to1() throws Exception {
serviceB.registerRequestHandler("/version", Version1Request::new, ThreadPool.Names.SAME,
(request, channel) -> {
assertThat(request.value1, equalTo(1));
assertThat(request.value2, equalTo(2));
Version1Response response = new Version1Response();
response.value1 = 1;
response.value2 = 2;
channel.sendResponse(response);
assertEquals(version1, channel.getVersion());
});
Version1Request version1Request = new Version1Request();
version1Request.value1 = 1;
version1Request.value2 = 2;
Version1Response version1Response = serviceB.submitRequest(nodeB, "/version", version1Request,
new TransportResponseHandler() {
@Override
public Version1Response newInstance() {
return new Version1Response();
}
@Override
public void handleResponse(Version1Response response) {
assertThat(response.value1, equalTo(1));
assertThat(response.value2, equalTo(2));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
}).txGet();
assertThat(version1Response.value1, equalTo(1));
assertThat(version1Response.value2, equalTo(2));
}
public void testVersionFrom0to0() throws Exception {
serviceA.registerRequestHandler("/version", Version0Request::new, ThreadPool.Names.SAME,
(request, channel) -> {
assertThat(request.value1, equalTo(1));
Version0Response response = new Version0Response();
response.value1 = 1;
channel.sendResponse(response);
assertEquals(version0, channel.getVersion());
});
Version0Request version0Request = new Version0Request();
version0Request.value1 = 1;
Version0Response version0Response = serviceA.submitRequest(nodeA, "/version", version0Request,
new TransportResponseHandler() {
@Override
public Version0Response newInstance() {
return new Version0Response();
}
@Override
public void handleResponse(Version0Response response) {
assertThat(response.value1, equalTo(1));
}
@Override
public void handleException(TransportException exp) {
logger.error("Unexpected failure", exp);
fail("got exception instead of a response: " + exp.getMessage());
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
}).txGet();
assertThat(version0Response.value1, equalTo(1));
}
public void testMockFailToSendNoConnectRule() throws Exception {
serviceA.registerRequestHandler("sayHello", StringMessageRequest::new, ThreadPool.Names.GENERIC,
(request, channel) -> {
assertThat("moshe", equalTo(request.message));
throw new RuntimeException("bad message !!!");
});
serviceB.addFailToSendNoConnectRule(serviceA);
TransportFuture res = serviceB.submitRequest(nodeA, "sayHello",
new StringMessageRequest("moshe"), new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
fail("got response instead of exception");
}
@Override
public void handleException(TransportException exp) {
Throwable cause = ExceptionsHelper.unwrapCause(exp);
assertThat(cause, instanceOf(ConnectTransportException.class));
assertThat(((ConnectTransportException)cause).node(), equalTo(nodeA));
}
});
try {
res.txGet();
fail("exception should be thrown");
} catch (Exception e) {
Throwable cause = ExceptionsHelper.unwrapCause(e);
assertThat(cause, instanceOf(ConnectTransportException.class));
assertThat(((ConnectTransportException)cause).node(), equalTo(nodeA));
}
// disconnecting from the node is async, wait for it
assertBusy(() -> assertFalse(serviceB.nodeConnected(nodeA)));
try {
serviceB.connectToNode(nodeA);
fail("exception should be thrown");
} catch (ConnectTransportException e) {
// all is well
}
expectThrows(ConnectTransportException.class, () -> serviceB.openConnection(nodeA, MockTcpTransport.LIGHT_PROFILE));
}
public void testMockUnresponsiveRule() throws IOException {
serviceA.registerRequestHandler("sayHello", StringMessageRequest::new, ThreadPool.Names.GENERIC,
(request, channel) -> {
assertThat("moshe", equalTo(request.message));
throw new RuntimeException("bad message !!!");
});
serviceB.addUnresponsiveRule(serviceA);
TransportFuture res = serviceB.submitRequest(nodeA, "sayHello",
new StringMessageRequest("moshe"), TransportRequestOptions.builder().withTimeout(100).build(),
new TransportResponseHandler() {
@Override
public StringMessageResponse newInstance() {
return new StringMessageResponse();
}
@Override
public String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
public void handleResponse(StringMessageResponse response) {
fail("got response instead of exception");
}
@Override
public void handleException(TransportException exp) {
assertThat(exp, instanceOf(ReceiveTimeoutTransportException.class));
}
});
try {
res.txGet();
fail("exception should be thrown");
} catch (Exception e) {
assertThat(e, instanceOf(ReceiveTimeoutTransportException.class));
}
try {
serviceB.disconnectFromNode(nodeA);
serviceB.connectToNode(nodeA);
fail("exception should be thrown");
} catch (ConnectTransportException e) {
// all is well
}
expectThrows(ConnectTransportException.class, () -> serviceB.openConnection(nodeA, MockTcpTransport.LIGHT_PROFILE));
}
public void testHostOnMessages() throws InterruptedException {
final CountDownLatch latch = new CountDownLatch(2);
final AtomicReference addressA = new AtomicReference<>();
final AtomicReference addressB = new AtomicReference<>();
serviceB.registerRequestHandler("action1", TestRequest::new, ThreadPool.Names.SAME, new TransportRequestHandler() {
@Override
public void messageReceived(TestRequest request, TransportChannel channel) throws Exception {
addressA.set(request.remoteAddress());
channel.sendResponse(new TestResponse());
latch.countDown();
}
});
serviceA.sendRequest(nodeB, "action1", new TestRequest(), new TransportResponseHandler() {
@Override
public TestResponse newInstance() {
return new TestResponse();
}
@Override
public void handleResponse(TestResponse response) {
addressB.set(response.remoteAddress());
latch.countDown();
}
@Override
public void handleException(TransportException exp) {
latch.countDown();
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
});
if (!latch.await(10, TimeUnit.SECONDS)) {
fail("message round trip did not complete within a sensible time frame");
}
assertTrue(nodeA.getAddress().sameHost(addressA.get()));
assertTrue(nodeB.getAddress().sameHost(addressB.get()));
}
public void testBlockingIncomingRequests() throws Exception {
try (TransportService service = buildService("TS_TEST", version0, null,
Settings.EMPTY, false, false)) {
AtomicBoolean requestProcessed = new AtomicBoolean(false);
service.registerRequestHandler("action", TestRequest::new, ThreadPool.Names.SAME,
(request, channel) -> {
requestProcessed.set(true);
channel.sendResponse(TransportResponse.Empty.INSTANCE);
});
DiscoveryNode node = service.getLocalNode();
serviceA.close();
serviceA = buildService("TS_A", version0, null,
Settings.EMPTY, true, false);
try (Transport.Connection connection = serviceA.openConnection(node, null)) {
CountDownLatch latch = new CountDownLatch(1);
serviceA.sendRequest(connection, "action", new TestRequest(), TransportRequestOptions.EMPTY,
new TransportResponseHandler() {
@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();
}
}
}
public static class TestRequest extends TransportRequest {
String info;
int resendCount;
public TestRequest() {
}
public TestRequest(String info) {
this.info = info;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
info = in.readOptionalString();
resendCount = in.readInt();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeOptionalString(info);
out.writeInt(resendCount);
}
@Override
public String toString() {
return "TestRequest{" +
"info='" + info + '\'' +
'}';
}
}
private static class TestResponse extends TransportResponse {
String info;
TestResponse() {
}
TestResponse(String info) {
this.info = info;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
info = in.readOptionalString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeOptionalString(info);
}
@Override
public String toString() {
return "TestResponse{" +
"info='" + info + '\'' +
'}';
}
}
public void testSendRandomRequests() throws InterruptedException {
TransportService serviceC = build(
Settings.builder()
.put("name", "TS_TEST")
.put(TransportService.TRACE_LOG_INCLUDE_SETTING.getKey(), "")
.put(TransportService.TRACE_LOG_EXCLUDE_SETTING.getKey(), "NOTHING")
.build(),
version0,
null, true);
DiscoveryNode nodeC = serviceC.getLocalNode();
serviceC.acceptIncomingRequests();
final CountDownLatch latch = new CountDownLatch(4);
TransportConnectionListener waitForConnection = new TransportConnectionListener() {
@Override
public void onNodeConnected(DiscoveryNode node) {
latch.countDown();
}
@Override
public void onNodeDisconnected(DiscoveryNode node) {
fail("disconnect should not be called " + node);
}
};
serviceA.addConnectionListener(waitForConnection);
serviceB.addConnectionListener(waitForConnection);
serviceC.addConnectionListener(waitForConnection);
serviceC.connectToNode(nodeA);
serviceC.connectToNode(nodeB);
serviceA.connectToNode(nodeC);
serviceB.connectToNode(nodeC);
latch.await();
serviceA.removeConnectionListener(waitForConnection);
serviceB.removeConnectionListener(waitForConnection);
serviceC.removeConnectionListener(waitForConnection);
Map toNodeMap = new HashMap<>();
toNodeMap.put(serviceA, nodeA);
toNodeMap.put(serviceB, nodeB);
toNodeMap.put(serviceC, nodeC);
AtomicBoolean fail = new AtomicBoolean(false);
class TestRequestHandler implements TransportRequestHandler {
private final TransportService service;
TestRequestHandler(TransportService service) {
this.service = service;
}
@Override
public void messageReceived(TestRequest request, TransportChannel channel) throws Exception {
if (randomBoolean()) {
Thread.sleep(randomIntBetween(10, 50));
}
if (fail.get()) {
throw new IOException("forced failure");
}
if (randomBoolean() && request.resendCount++ < 20) {
DiscoveryNode node = randomFrom(nodeA, nodeB, nodeC);
logger.debug("send secondary request from {} to {} - {}", toNodeMap.get(service), node, request.info);
service.sendRequest(node, "action1", new TestRequest("secondary " + request.info),
TransportRequestOptions.builder().withCompress(randomBoolean()).build(),
new TransportResponseHandler() {
@Override
public TestResponse newInstance() {
return new TestResponse();
}
@Override
public void handleResponse(TestResponse response) {
try {
if (randomBoolean()) {
Thread.sleep(randomIntBetween(10, 50));
}
logger.debug("send secondary response {}", response.info);
channel.sendResponse(response);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public void handleException(TransportException exp) {
try {
logger.debug("send secondary exception response for request {}", request.info);
channel.sendResponse(exp);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public String executor() {
return randomBoolean() ? ThreadPool.Names.SAME : ThreadPool.Names.GENERIC;
}
});
} else {
logger.debug("send response for {}", request.info);
channel.sendResponse(new TestResponse("Response for: " + request.info));
}
}
}
serviceB.registerRequestHandler("action1", TestRequest::new, randomFrom(ThreadPool.Names.SAME, ThreadPool.Names.GENERIC),
new TestRequestHandler(serviceB));
serviceC.registerRequestHandler("action1", TestRequest::new, randomFrom(ThreadPool.Names.SAME, ThreadPool.Names.GENERIC),
new TestRequestHandler(serviceC));
serviceA.registerRequestHandler("action1", TestRequest::new, randomFrom(ThreadPool.Names.SAME, ThreadPool.Names.GENERIC),
new TestRequestHandler(serviceA));
int iters = randomIntBetween(30, 60);
CountDownLatch allRequestsDone = new CountDownLatch(iters);
class TestResponseHandler implements TransportResponseHandler {
private final int id;
TestResponseHandler(int id) {
this.id = id;
}
@Override
public TestResponse newInstance() {
return new TestResponse();
}
@Override
public void handleResponse(TestResponse response) {
logger.debug("---> received response: {}", response.info);
allRequestsDone.countDown();
}
@Override
public void handleException(TransportException exp) {
logger.debug((Supplier) () -> new ParameterizedMessage("---> received exception for id {}", id), exp);
allRequestsDone.countDown();
Throwable unwrap = ExceptionsHelper.unwrap(exp, IOException.class);
assertNotNull(unwrap);
assertEquals(IOException.class, unwrap.getClass());
assertEquals("forced failure", unwrap.getMessage());
}
@Override
public String executor() {
return randomBoolean() ? ThreadPool.Names.SAME : ThreadPool.Names.GENERIC;
}
}
for (int i = 0; i < iters; i++) {
TransportService service = randomFrom(serviceC, serviceB, serviceA);
DiscoveryNode node = randomFrom(nodeC, nodeB, nodeA);
logger.debug("send from {} to {}", toNodeMap.get(service), node);
service.sendRequest(node, "action1", new TestRequest("REQ[" + i + "]"),
TransportRequestOptions.builder().withCompress(randomBoolean()).build(), new TestResponseHandler(i));
}
logger.debug("waiting for response");
fail.set(randomBoolean());
boolean await = allRequestsDone.await(5, TimeUnit.SECONDS);
if (await == false) {
logger.debug("now failing forcefully");
fail.set(true);
assertTrue(allRequestsDone.await(5, TimeUnit.SECONDS));
}
logger.debug("DONE");
serviceC.close();
// when we close C here we have to disconnect the service otherwise assertions mit trip with pending connections in tearDown
// since the disconnect will then happen concurrently and that might confuse the assertions since we disconnect due to a
// connection reset by peer or other exceptions depending on the implementation
serviceB.disconnectFromNode(nodeC);
serviceA.disconnectFromNode(nodeC);
}
public void testRegisterHandlerTwice() {
serviceB.registerRequestHandler("action1", TestRequest::new, randomFrom(ThreadPool.Names.SAME, ThreadPool.Names.GENERIC),
(request, message) -> {throw new AssertionError("boom");});
expectThrows(IllegalArgumentException.class, () ->
serviceB.registerRequestHandler("action1", TestRequest::new, randomFrom(ThreadPool.Names.SAME, ThreadPool.Names.GENERIC),
(request, message) -> {throw new AssertionError("boom");})
);
serviceA.registerRequestHandler("action1", TestRequest::new, randomFrom(ThreadPool.Names.SAME, ThreadPool.Names.GENERIC),
(request, message) -> {throw new AssertionError("boom");});
}
public void testTimeoutPerConnection() throws IOException {
assumeTrue("Works only on BSD network stacks and apparently windows",
Constants.MAC_OS_X || Constants.FREE_BSD || Constants.WINDOWS);
assumeFalse("This test does not work for the local transport as it uses different address types",
serviceA.original() instanceof LocalTransport || serviceB.original() instanceof LocalTransport);
try (ServerSocket socket = new ServerSocket()) {
// note - this test uses backlog=1 which is implementation specific ie. it might not work on some TCP/IP stacks
// on linux (at least newer ones) the listen(addr, backlog=1) should just ignore new connections if the queue is full which
// means that once we received an ACK from the client we just drop the packet on the floor (which is what we want) and we run
// into a connection timeout quickly. Yet other implementations can for instance can terminate the connection within the 3 way
// handshake which I haven't tested yet.
socket.bind(new InetSocketAddress(InetAddress.getLocalHost(), 0), 1);
socket.setReuseAddress(true);
DiscoveryNode first = new DiscoveryNode("TEST", new InetSocketTransportAddress(socket.getInetAddress(),
socket.getLocalPort()), emptyMap(),
emptySet(), version0);
DiscoveryNode second = new DiscoveryNode("TEST", new InetSocketTransportAddress(socket.getInetAddress(),
socket.getLocalPort()), emptyMap(),
emptySet(), version0);
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
// connection with one connection and a large timeout -- should consume the one spot in the backlog queue
try (TransportService service = buildService("TS_TPC", Version.CURRENT, null,
Settings.EMPTY, true, false)) {
IOUtils.close(service.openConnection(first, builder.build()));
builder.setConnectTimeout(TimeValue.timeValueMillis(1));
final ConnectionProfile profile = builder.build();
// now with the 1ms timeout we got and test that is it's applied
long startTime = System.nanoTime();
ConnectTransportException ex = expectThrows(ConnectTransportException.class, () -> service.openConnection(second, profile));
final long now = System.nanoTime();
final long timeTaken = TimeValue.nsecToMSec(now - startTime);
assertTrue("test didn't timeout quick enough, time taken: [" + timeTaken + "]",
timeTaken < TimeValue.timeValueSeconds(5).millis());
assertEquals(ex.getMessage(), "[][" + second.getAddress() + "] connect_timeout[1ms]");
}
}
}
public void testHandshakeWithIncompatVersion() {
assumeTrue("only tcp transport has a handshake method", serviceA.getOriginalTransport() instanceof TcpTransport);
NamedWriteableRegistry namedWriteableRegistry = new NamedWriteableRegistry(Collections.emptyList());
try (MockTcpTransport transport = new MockTcpTransport(Settings.EMPTY, threadPool, BigArrays.NON_RECYCLING_INSTANCE,
new NoneCircuitBreakerService(), namedWriteableRegistry, new NetworkService(Settings.EMPTY, Collections.emptyList()),
Version.fromString("2.0.0"))) {
transport.transportServiceAdapter(serviceA.new Adapter());
transport.start();
DiscoveryNode node =
new DiscoveryNode("TS_TPC", "TS_TPC", transport.boundAddress().publishAddress(), emptyMap(), emptySet(), version0);
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
expectThrows(ConnectTransportException.class, () -> serviceA.openConnection(node, builder.build()));
}
}
public void testHandshakeUpdatesVersion() throws IOException {
assumeTrue("only tcp transport has a handshake method", serviceA.getOriginalTransport() instanceof TcpTransport);
NamedWriteableRegistry namedWriteableRegistry = new NamedWriteableRegistry(Collections.emptyList());
Version version = VersionUtils.randomVersionBetween(random(), Version.CURRENT.minimumCompatibilityVersion(), Version.CURRENT);
try (MockTcpTransport transport = new MockTcpTransport(Settings.EMPTY, threadPool, BigArrays.NON_RECYCLING_INSTANCE,
new NoneCircuitBreakerService(), namedWriteableRegistry, new NetworkService(Settings.EMPTY, Collections.emptyList()),version)) {
transport.transportServiceAdapter(serviceA.new Adapter());
transport.start();
DiscoveryNode node =
new DiscoveryNode("TS_TPC", "TS_TPC", transport.boundAddress().publishAddress(), emptyMap(), emptySet(),
Version.fromString("2.0.0"));
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
try (Transport.Connection connection = serviceA.openConnection(node, builder.build())) {
assertEquals(connection.getVersion(), version);
}
}
}
public void testTcpHandshake() throws IOException, InterruptedException {
assumeTrue("only tcp transport has a handshake method", serviceA.getOriginalTransport() instanceof TcpTransport);
TcpTransport originalTransport = (TcpTransport) serviceA.getOriginalTransport();
NamedWriteableRegistry namedWriteableRegistry = new NamedWriteableRegistry(Collections.emptyList());
try (MockTcpTransport transport = new MockTcpTransport(Settings.EMPTY, threadPool, BigArrays.NON_RECYCLING_INSTANCE,
new NoneCircuitBreakerService(), namedWriteableRegistry, new NetworkService(Settings.EMPTY, Collections.emptyList())){
@Override
protected String handleRequest(MockChannel mockChannel, String profileName, StreamInput stream, long requestId,
int messageLengthBytes, Version version, InetSocketAddress remoteAddress, byte status)
throws IOException {
return super.handleRequest(mockChannel, profileName, stream, requestId, messageLengthBytes, version, remoteAddress,
(byte)(status & ~(1<<3))); // we flip the isHandshake bit back and act like the handler is not found
}
}) {
transport.transportServiceAdapter(serviceA.new Adapter());
transport.start();
// this acts like a node that doesn't have support for handshakes
DiscoveryNode node =
new DiscoveryNode("TS_TPC", "TS_TPC", transport.boundAddress().publishAddress(), emptyMap(), emptySet(), version0);
try(TcpTransport.NodeChannels connection = originalTransport.openConnection(node, null)) {
Version version = originalTransport.executeHandshake(node, connection.channel(TransportRequestOptions.Type.PING),
TimeValue.timeValueSeconds(10));
assertNull(version);
}
}
try (TransportService service = buildService("TS_TPC", Version.CURRENT, null);
TcpTransport.NodeChannels connection = originalTransport.openConnection(
new DiscoveryNode("TS_TPC", "TS_TPC", service.boundAddress().publishAddress(), emptyMap(), emptySet(), version0),
null
) ) {
Version version = originalTransport.executeHandshake(connection.getNode(),
connection.channel(TransportRequestOptions.Type.PING), TimeValue.timeValueSeconds(10));
assertEquals(version, Version.CURRENT);
}
}
public void testTcpHandshakeTimeout() throws IOException {
assumeTrue("only tcp transport does a handshake", serviceA.getOriginalTransport() instanceof TcpTransport);
try (ServerSocket socket = new ServerSocket()) {
socket.bind(new InetSocketAddress(InetAddress.getLocalHost(), 0), 1);
socket.setReuseAddress(true);
DiscoveryNode dummy = new DiscoveryNode("TEST", new InetSocketTransportAddress(socket.getInetAddress(),
socket.getLocalPort()), emptyMap(),
emptySet(), version0);
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
builder.setHandshakeTimeout(TimeValue.timeValueMillis(1));
ConnectTransportException ex = expectThrows(ConnectTransportException.class,
() -> serviceA.connectToNode(dummy, builder.build()));
assertEquals("[][" + dummy.getAddress() +"] handshake_timeout[1ms]", ex.getMessage());
}
}
public void testTcpHandshakeConnectionReset() throws IOException, InterruptedException {
assumeTrue("only tcp transport does a handshake", serviceA.getOriginalTransport() instanceof TcpTransport);
try (ServerSocket socket = new ServerSocket()) {
socket.bind(new InetSocketAddress(InetAddress.getLocalHost(), 0), 1);
socket.setReuseAddress(true);
DiscoveryNode dummy = new DiscoveryNode("TEST", new InetSocketTransportAddress(socket.getInetAddress(),
socket.getLocalPort()), emptyMap(),
emptySet(), version0);
Thread t = new Thread() {
@Override
public void run() {
try (Socket accept = socket.accept()) {
if (randomBoolean()) { // sometimes wait until the other side sends the message
accept.getInputStream().read();
}
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
};
t.start();
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
builder.setHandshakeTimeout(TimeValue.timeValueHours(1));
ConnectTransportException ex = expectThrows(ConnectTransportException.class,
() -> serviceA.connectToNode(dummy, builder.build()));
assertEquals(ex.getMessage(), "[][" + dummy.getAddress() +"] general node connection failure");
assertThat(ex.getCause().getMessage(), startsWith("handshake failed"));
t.join();
}
}
public void testResponseHeadersArePreserved() throws InterruptedException {
List executors = new ArrayList<>(ThreadPool.THREAD_POOL_TYPES.keySet());
CollectionUtil.timSort(executors); // makes sure it's reproducible
serviceA.registerRequestHandler("action", TestRequest::new, ThreadPool.Names.SAME,
(request, channel) -> {
threadPool.getThreadContext().putTransient("boom", new Object());
threadPool.getThreadContext().addResponseHeader("foo.bar", "baz");
if ("fail".equals(request.info)) {
throw new RuntimeException("boom");
} else {
channel.sendResponse(TransportResponse.Empty.INSTANCE);
}
});
CountDownLatch latch = new CountDownLatch(2);
TransportResponseHandler transportResponseHandler = new TransportResponseHandler() {
@Override
public TransportResponse newInstance() {
return TransportResponse.Empty.INSTANCE;
}
@Override
public void handleResponse(TransportResponse response) {
try {
assertSame(response, TransportResponse.Empty.INSTANCE);
assertTrue(threadPool.getThreadContext().getResponseHeaders().containsKey("foo.bar"));
assertEquals(1, threadPool.getThreadContext().getResponseHeaders().get("foo.bar").size());
assertEquals("baz", threadPool.getThreadContext().getResponseHeaders().get("foo.bar").get(0));
assertNull(threadPool.getThreadContext().getTransient("boom"));
} finally {
latch.countDown();
}
}
@Override
public void handleException(TransportException exp) {
try {
assertTrue(threadPool.getThreadContext().getResponseHeaders().containsKey("foo.bar"));
assertEquals(1, threadPool.getThreadContext().getResponseHeaders().get("foo.bar").size());
assertEquals("baz", threadPool.getThreadContext().getResponseHeaders().get("foo.bar").get(0));
assertNull(threadPool.getThreadContext().getTransient("boom"));
} finally {
latch.countDown();
}
}
@Override
public String executor() {
return randomFrom(executors);
}
};
serviceB.sendRequest(nodeA, "action", new TestRequest(randomFrom("fail", "pass")), transportResponseHandler);
serviceA.sendRequest(nodeA, "action", new TestRequest(randomFrom("fail", "pass")), transportResponseHandler);
latch.await();
}
public void testHandlerIsInvokedOnConnectionClose() throws IOException, InterruptedException {
List executors = new ArrayList<>(ThreadPool.THREAD_POOL_TYPES.keySet());
CollectionUtil.timSort(executors); // makes sure it's reproducible
TransportService serviceC = build(Settings.builder().put("name", "TS_TEST").build(), version0, null, true);
serviceC.registerRequestHandler("action", TestRequest::new, ThreadPool.Names.SAME,
(request, channel) -> {
// do nothing
});
serviceC.start();
serviceC.acceptIncomingRequests();
CountDownLatch latch = new CountDownLatch(1);
TransportResponseHandler transportResponseHandler = new TransportResponseHandler() {
@Override
public TransportResponse newInstance() {
return TransportResponse.Empty.INSTANCE;
}
@Override
public void handleResponse(TransportResponse response) {
try {
fail("no response expected");
} finally {
latch.countDown();
}
}
@Override
public void handleException(TransportException exp) {
try {
if (exp instanceof SendRequestTransportException) {
assertTrue(exp.getCause().getClass().toString(), exp.getCause() instanceof NodeNotConnectedException);
} else {
// here the concurrent disconnect was faster and invoked the listener first
assertTrue(exp.getClass().toString(), exp instanceof NodeDisconnectedException);
}
} finally {
latch.countDown();
}
}
@Override
public String executor() {
return randomFrom(executors);
}
};
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
try (Transport.Connection connection = serviceB.openConnection(serviceC.getLocalNode(), builder.build())) {
serviceC.close();
serviceB.sendRequest(connection, "action", new TestRequest("boom"), TransportRequestOptions.EMPTY,
transportResponseHandler);
}
latch.await();
}
public void testConcurrentDisconnectOnNonPublishedConnection() throws IOException, InterruptedException {
MockTransportService serviceC = build(Settings.builder().put("name", "TS_TEST").build(), version0, null, true);
CountDownLatch receivedLatch = new CountDownLatch(1);
CountDownLatch sendResponseLatch = new CountDownLatch(1);
serviceC.registerRequestHandler("action", TestRequest::new, ThreadPool.Names.SAME,
(request, channel) -> {
// don't block on a network thread here
threadPool.generic().execute(new AbstractRunnable() {
@Override
public void onFailure(Exception e) {
try {
channel.sendResponse(e);
} catch (IOException e1) {
throw new UncheckedIOException(e1);
}
}
@Override
protected void doRun() throws Exception {
receivedLatch.countDown();
sendResponseLatch.await();
channel.sendResponse(TransportResponse.Empty.INSTANCE);
}
});
});
serviceC.start();
serviceC.acceptIncomingRequests();
CountDownLatch responseLatch = new CountDownLatch(1);
TransportResponseHandler transportResponseHandler = new TransportResponseHandler() {
@Override
public TransportResponse newInstance() {
return TransportResponse.Empty.INSTANCE;
}
@Override
public void handleResponse(TransportResponse response) {
responseLatch.countDown();
}
@Override
public void handleException(TransportException exp) {
responseLatch.countDown();
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
};
ConnectionProfile.Builder builder = new ConnectionProfile.Builder();
builder.addConnections(1,
TransportRequestOptions.Type.BULK,
TransportRequestOptions.Type.PING,
TransportRequestOptions.Type.RECOVERY,
TransportRequestOptions.Type.REG,
TransportRequestOptions.Type.STATE);
try (Transport.Connection connection = serviceB.openConnection(serviceC.getLocalNode(), builder.build())) {
serviceB.sendRequest(connection, "action", new TestRequest("hello world"), TransportRequestOptions.EMPTY,
transportResponseHandler);
receivedLatch.await();
assertPendingConnections(1, serviceB.getOriginalTransport());
serviceC.close();
assertPendingConnections(0, serviceC.getOriginalTransport());
sendResponseLatch.countDown();
responseLatch.await();
}
assertPendingConnections(0, serviceC.getOriginalTransport());
}
}
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