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ClientCrashTest.java
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ClientCrashTest.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.artemis.tests.integration.clientcrash;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.artemis.api.core.Message;
import org.apache.activemq.artemis.api.core.QueueConfiguration;
import org.apache.activemq.artemis.api.core.SimpleString;
import org.apache.activemq.artemis.api.core.client.ClientConsumer;
import org.apache.activemq.artemis.api.core.client.ClientMessage;
import org.apache.activemq.artemis.api.core.client.ClientProducer;
import org.apache.activemq.artemis.api.core.client.ClientSession;
import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
import org.apache.activemq.artemis.api.core.client.ServerLocator;
import org.apache.activemq.artemis.core.settings.impl.AddressSettings;
import org.apache.activemq.artemis.jms.client.ActiveMQTextMessage;
import org.apache.activemq.artemis.tests.util.SpawnedVMCheck;
import org.apache.activemq.artemis.utils.SpawnedVMSupport;
import org.jboss.logging.Logger;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
/**
* A test that makes sure that an ActiveMQ Artemis server cleans up the associated
* resources when one of its client crashes.
*/
public class ClientCrashTest extends ClientTestBase {
private static final Logger log = Logger.getLogger(ClientCrashTest.class);
@Rule
public SpawnedVMCheck spawnedVMCheck = new SpawnedVMCheck();
// using short values so this test can run fast
static final int PING_PERIOD = 100;
// using short values so this test can run fast
static final int CONNECTION_TTL = 1000;
public static final SimpleString QUEUE = new SimpleString("ClientCrashTestQueue");
public static final SimpleString QUEUE2 = new SimpleString("ClientCrashTestQueue2");
public static final String MESSAGE_TEXT_FROM_SERVER = "ClientCrashTest from server";
public static final String MESSAGE_TEXT_FROM_CLIENT = "ClientCrashTest from client";
private ClientSessionFactory sf;
private ServerLocator locator;
Process p;
@After
@Override
public void tearDown() throws Exception {
super.tearDown();
if (p != null) {
long timeout = System.currentTimeMillis() + 5000;
while (timeout > System.currentTimeMillis() && p.isAlive()) {
p.destroy();
}
}
}
@Test
public void testCrashClient() throws Exception {
assertActiveConnections(1);
ClientSession session = sf.createSession(false, true, true);
session.createQueue(new QueueConfiguration(ClientCrashTest.QUEUE).setDurable(false));
// spawn a JVM that creates a Core client, which sends a message
// It has to be spawned after the queue was created.
// if the client is too fast you race the send before the queue was created, missing a message
p = SpawnedVMSupport.spawnVM(CrashClient.class.getName());
Assert.assertTrue(p.waitFor(1, TimeUnit.MINUTES));
Assert.assertEquals(CrashClient.OK, p.exitValue());
ClientConsumer consumer = session.createConsumer(ClientCrashTest.QUEUE);
ClientProducer producer = session.createProducer(ClientCrashTest.QUEUE);
session.start();
// receive a message from the queue
Message messageFromClient = consumer.receive(5000);
assertNotNull("no message received", messageFromClient);
assertEquals(ClientCrashTest.MESSAGE_TEXT_FROM_CLIENT, messageFromClient.getBodyBuffer().readString());
assertActiveConnections( 1); // One local and one from the other vm
assertActiveSession(1);
ClientMessage message = session.createMessage(ActiveMQTextMessage.TYPE, false, 0, System.currentTimeMillis(), (byte) 1);
message.getBodyBuffer().writeString(ClientCrashTest.MESSAGE_TEXT_FROM_SERVER);
producer.send(message);
assertEquals(9, p.exitValue());
long timeout = ClientCrashTest.CONNECTION_TTL + ClientCrashTest.PING_PERIOD + 10000;
assertActiveConnections(1, timeout);
assertActiveSession(1, timeout);
session.close();
// the crash must have been detected and the resources cleaned up
assertActiveConnections(1);
assertActiveSession(0);
}
@Test
public void testCrashClient2() throws Exception {
// set the redelivery delay to avoid an attempt to redeliver the message to the dead client
AddressSettings addressSettings = new AddressSettings().setRedeliveryDelay(ClientCrashTest.CONNECTION_TTL + ClientCrashTest.PING_PERIOD);
server.getAddressSettingsRepository().addMatch(ClientCrashTest.QUEUE2.toString(), addressSettings);
assertActiveConnections(1);
ClientSession session = sf.createSession(false, true, true);
session.createQueue(new QueueConfiguration(ClientCrashTest.QUEUE2).setDurable(false));
// spawn a JVM that creates a Core client, which sends a message
p = SpawnedVMSupport.spawnVM(CrashClient2.class.getName());
ClientCrashTest.log.debug("waiting for the client VM to crash ...");
Assert.assertTrue(p.waitFor(1, TimeUnit.MINUTES));
assertEquals(CrashClient2.OK, p.exitValue());
long timeout = ClientCrashTest.CONNECTION_TTL + ClientCrashTest.PING_PERIOD + 10000L;
assertActiveConnections(1, timeout);
assertActiveSession(1, timeout);
ClientConsumer consumer = session.createConsumer(ClientCrashTest.QUEUE2);
session.start();
// receive a message from the queue
ClientMessage messageFromClient = consumer.receive(timeout);
assertNotNull("no message received", messageFromClient);
assertEquals(ClientCrashTest.MESSAGE_TEXT_FROM_CLIENT, messageFromClient.getBodyBuffer().readString());
assertEquals("delivery count", 2, messageFromClient.getDeliveryCount());
consumer.close();
session.close();
}
@Override
@Before
public void setUp() throws Exception {
super.setUp();
locator = createNettyNonHALocator();
addServerLocator(locator);
locator.setClientFailureCheckPeriod(ClientCrashTest.PING_PERIOD);
locator.setConnectionTTL(ClientCrashTest.CONNECTION_TTL);
sf = createSessionFactory(locator);
}
}