| /** |
| * 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.bugs; |
| |
| import org.apache.activemq.ActiveMQConnection; |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.ActiveMQMessageConsumer; |
| import org.apache.activemq.broker.TransportConnector; |
| import org.apache.activemq.broker.region.policy.AbortSlowAckConsumerStrategy; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.BeforeClass; |
| |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import org.apache.logging.log4j.Level; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.core.LogEvent; |
| import org.apache.logging.log4j.core.appender.AbstractAppender; |
| import org.apache.logging.log4j.core.config.Property; |
| import org.apache.logging.log4j.core.filter.AbstractFilter; |
| import org.apache.logging.log4j.core.layout.MessageLayout; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.broker.region.policy.PolicyEntry; |
| import org.apache.activemq.broker.region.policy.PolicyMap; |
| import org.apache.activemq.transport.failover.FailoverTransport; |
| import org.apache.activemq.util.DefaultIOExceptionHandler; |
| import org.apache.activemq.util.Wait; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.jms.Connection; |
| import javax.jms.DeliveryMode; |
| import javax.jms.Destination; |
| import javax.jms.Message; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| import javax.jms.TextMessage; |
| import javax.jms.TransactionRolledBackException; |
| import java.io.IOException; |
| |
| /** |
| * The FailoverTransport maintains state is the ConnectionStateTracker object. Aborted slow consumers must be removed |
| * from this state tracker so that the FailoverTransport does not re-register the aborted slow consumers. |
| */ |
| public class AMQ5844Test { |
| |
| static final Logger LOG = LoggerFactory.getLogger(AMQ5844Test.class); |
| |
| protected BrokerService broker; |
| |
| protected long checkPeriod = 2 * 1000; |
| protected long maxSlowDuration = 4 * 1000; |
| |
| private String uri; |
| |
| private final static String QUEUE_NAME = "TEST.QUEUE"; |
| |
| static boolean abortingSlowConsumer = false; |
| static boolean successfullyReconnected = false; |
| static final AbstractAppender appender; |
| |
| static { |
| appender = new AbstractAppender("testAppender", new AbstractFilter() {}, new MessageLayout(), false, new Property[0]) { |
| @Override |
| public void append(LogEvent event) { |
| if(event.getMessage().getFormattedMessage().contains("aborting slow consumer")) { |
| abortingSlowConsumer = true; |
| } |
| |
| if(event.getMessage().getFormattedMessage().contains("Successfully reconnected to")) { |
| successfullyReconnected = true; |
| } |
| } |
| }; |
| appender.start(); |
| } |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| org.apache.logging.log4j.core.Logger rootLogger = ((org.apache.logging.log4j.core.Logger)LogManager.getRootLogger()); |
| rootLogger.get().addAppender(appender, Level.DEBUG, new AbstractFilter() {}); |
| rootLogger.addAppender(appender); |
| } |
| |
| @Before |
| /** |
| * Sets a AbortSlowConsumerStrategy policy entry on the broker and starts the broker. |
| */ |
| public void createMaster() throws Exception{ |
| broker = new BrokerService(); |
| broker.setDeleteAllMessagesOnStartup(true); |
| TransportConnector transportConnector = broker.addConnector("tcp://0.0.0.0:0"); |
| |
| DefaultIOExceptionHandler defaultIOExceptionHandler = new DefaultIOExceptionHandler(); |
| broker.setIoExceptionHandler(defaultIOExceptionHandler); |
| broker.setBrokerName("Main"); |
| |
| PolicyEntry policy = new PolicyEntry(); |
| AbortSlowAckConsumerStrategy abortSlowConsumerStrategy = new AbortSlowAckConsumerStrategy(); |
| abortSlowConsumerStrategy.setAbortConnection(false); |
| //time in milliseconds between checks for slow subscriptions |
| abortSlowConsumerStrategy.setCheckPeriod(checkPeriod); |
| //time in milliseconds that a sub can remain slow before triggering an abort |
| abortSlowConsumerStrategy.setMaxSlowDuration(maxSlowDuration); |
| abortSlowConsumerStrategy.setMaxTimeSinceLastAck(maxSlowDuration); |
| |
| policy.setSlowConsumerStrategy(abortSlowConsumerStrategy); |
| policy.setQueuePrefetch(0); |
| PolicyMap pMap = new PolicyMap(); |
| pMap.setDefaultEntry(policy); |
| broker.setDestinationPolicy(pMap); |
| |
| broker.start(); |
| uri = transportConnector.getPublishableConnectString(); |
| } |
| |
| @After |
| public void stopBroker() throws Exception { |
| if (broker != null) { |
| broker.stop(); |
| broker.waitUntilStopped(); |
| } |
| ((org.apache.logging.log4j.core.Logger)LogManager.getRootLogger()).removeAppender(appender); |
| } |
| |
| @Test |
| public void testRecreateAbortedConsumer() throws Exception { |
| String failoverTransportURL = "failover:(" + uri + ")"; |
| |
| ActiveMQConnectionFactory amq = new ActiveMQConnectionFactory(failoverTransportURL); |
| amq.setWatchTopicAdvisories(false); |
| |
| Connection jmsConnection = amq.createConnection(); |
| |
| ActiveMQConnection connection = (ActiveMQConnection) jmsConnection; |
| |
| connection.start(); |
| |
| // Create a Session that is transacted |
| Session session = connection.createSession(true, Session.SESSION_TRANSACTED); |
| |
| //Create the destination Queue |
| Destination destination = session.createQueue(QUEUE_NAME); |
| |
| //Create a MessageProducer from the Session to the Queue |
| MessageProducer producer = session.createProducer(destination); |
| |
| // Create message, send and close producer |
| StringBuilder stringBuilder = new StringBuilder(); |
| stringBuilder.append("Plain Text Message"); |
| |
| String text = stringBuilder.toString(); |
| TextMessage message = session.createTextMessage(text); |
| |
| //Send 2 non-persistent text messages |
| producer.send(message, DeliveryMode.NON_PERSISTENT, 1, 0); |
| producer.send(message, DeliveryMode.NON_PERSISTENT, 1, 0); |
| //Commit the session so the messages get delivered to the broker |
| session.commit(); |
| //close the producer and get it out of the way |
| producer.close(); |
| |
| //Start consuming the messages. |
| ActiveMQMessageConsumer consumer = (ActiveMQMessageConsumer) session.createConsumer(destination); |
| Message mess = consumer.receive(); |
| //First message received successfully. |
| assertNotNull(mess); |
| |
| //The AbortSlowConsumerStrategy kicks in here and sends a message down to the client to close itself. |
| //The client does not close because it is in the middle of the transaction. Meanwhile the FailoverTransport |
| //detects the close command and removes the consumer from its state. |
| |
| assertTrue("The browser aborts the slow consumer", Wait.waitFor(new Wait.Condition() { |
| @Override |
| public boolean isSatisified() throws Exception { |
| return abortingSlowConsumer; |
| } |
| }, 10 * 1000)); |
| |
| //We intentionally fail the transport just to make sure that the slow consumer that was aborted is not |
| //re-registered by the FailoverTransport |
| FailoverTransport failoverTransport = connection.getTransport().narrow(FailoverTransport.class); |
| failoverTransport.handleTransportFailure(new IOException()); |
| |
| assertTrue("The broker aborts the slow consumer", Wait.waitFor(new Wait.Condition() { |
| @Override |
| public boolean isSatisified() throws Exception { |
| return successfullyReconnected; |
| } |
| }, 4 * 1000)); |
| |
| try { |
| mess = consumer.receive(2 * 1000); |
| //This message must be null because the slow consumer has already been deleted on the broker side. |
| assertNull(mess); |
| session.commit(); |
| fail("Expect the commit to fail and a rollback to happen"); |
| } |
| catch (TransactionRolledBackException expected) { |
| assertTrue(expected.getMessage().contains("rolling back transaction")); |
| } |
| |
| connection.close(); |
| } |
| } |