| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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 java.util.ArrayList; |
| |
| import javax.jms.Connection; |
| import javax.jms.DeliveryMode; |
| import javax.jms.Message; |
| import javax.jms.MessageConsumer; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| |
| import org.apache.activemq.ActiveMQConnectionFactory; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.broker.TransportConnector; |
| import org.apache.activemq.broker.region.Queue; |
| import org.apache.activemq.command.ActiveMQQueue; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class AMQ6094Test { |
| |
| private static Logger LOG = LoggerFactory.getLogger(AMQ6094Test.class); |
| |
| private BrokerService brokerService; |
| private String connectionUri; |
| |
| @Before |
| public void before() throws Exception { |
| brokerService = new BrokerService(); |
| TransportConnector connector = brokerService.addConnector("tcp://localhost:0"); |
| connectionUri = connector.getPublishableConnectString(); |
| brokerService.setDeleteAllMessagesOnStartup(true); |
| brokerService.start(); |
| brokerService.waitUntilStarted(); |
| } |
| |
| @After |
| public void after() throws Exception { |
| if (brokerService != null) { |
| brokerService.stop(); |
| brokerService.waitUntilStopped(); |
| } |
| } |
| |
| @Test |
| public void testQueueMemoryUsage() throws Exception { |
| |
| final ArrayList<ThreadSlot> producerThreads = new ArrayList<>(); |
| |
| final ArrayList<ThreadSlot> consumerThreads = new ArrayList<>(); |
| |
| for (int i = 0; i < 4; i++) |
| producerThreads.add(runInThread(new UnsafeRunnable() { |
| |
| @Override |
| public void run() throws Exception { |
| producer(connectionUri, "queueA"); |
| } |
| |
| })); |
| |
| for (int i = 0; i < 4; i++) |
| consumerThreads.add(runInThread(new UnsafeRunnable() { |
| |
| @Override |
| public void run() throws Exception { |
| consumer(connectionUri, "queueA", 2500); |
| } |
| })); |
| |
| // kill and restart random threads |
| for (int count = 0; count < 10; count++) { |
| Thread.sleep(5000); |
| final int i = (int) (Math.random() * consumerThreads.size()); |
| final ThreadSlot slot = consumerThreads.get(i); |
| slot.thread.interrupt(); |
| consumerThreads.remove(i); |
| consumerThreads.add(runInThread(slot.runnable)); |
| |
| Queue queue = (Queue) brokerService.getDestination(new ActiveMQQueue("queueA")); |
| LOG.info("cursorMemoryUsage: " + queue.getMessages(). |
| getSystemUsage().getMemoryUsage().getUsage()); |
| LOG.info("messagesStat: " + queue.getDestinationStatistics().getMessages().getCount()); |
| |
| } |
| |
| // verify usage |
| Queue queue = (Queue) brokerService.getDestination(new ActiveMQQueue("queueA")); |
| LOG.info("cursorMemoryUsage: " + queue.getMessages(). |
| getSystemUsage().getMemoryUsage().getUsage()); |
| LOG.info("messagesStat: " + queue.getDestinationStatistics().getMessages().getCount()); |
| |
| // drain the queue |
| for (ThreadSlot threadSlot: producerThreads) { |
| threadSlot.thread.interrupt(); |
| threadSlot.thread.join(4000); |
| } |
| |
| for (ThreadSlot threadSlot : consumerThreads) { |
| threadSlot.thread.interrupt(); |
| threadSlot.thread.join(4000); |
| } |
| |
| consumer(connectionUri, "queueA", 2500, true); |
| |
| LOG.info("After drain, cursorMemoryUsage: " + queue.getMessages(). |
| getSystemUsage().getMemoryUsage().getUsage()); |
| LOG.info("messagesStat: " + queue.getDestinationStatistics().getMessages().getCount()); |
| |
| assertEquals("Queue memory usage to 0", 0, queue.getMessages(). |
| getSystemUsage().getMemoryUsage().getUsage()); |
| |
| } |
| |
| public static void producer(String uri, String topic) throws Exception { |
| final ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory( |
| uri + "?jms.useCompression=true&jms.useAsyncSend=true&daemon=true"); |
| |
| Connection connection = factory.createConnection(); |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| MessageProducer producer = session.createProducer(new ActiveMQQueue(topic)); |
| |
| producer.setTimeToLive(6000); |
| producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT); |
| |
| while (true) { |
| producer.send(session.createTextMessage(msg())); |
| if (Math.random() > 0.5) |
| Thread.sleep(1); |
| } |
| |
| } |
| |
| public static void consumer(String uri, String queue, int prefetchSize) throws Exception { |
| consumer(uri, queue, prefetchSize, false); |
| } |
| |
| public static void consumer(String uri, String queue, int prefetchSize, boolean drain) throws Exception { |
| final ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory( |
| uri + "?jms.prefetchPolicy.queuePrefetch=" + prefetchSize + "&jms.useAsyncSend=true"); |
| |
| Connection connection = null; |
| try { |
| connection = factory.createConnection(); |
| connection.start(); |
| Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| MessageConsumer consumer = session.createConsumer(new ActiveMQQueue(queue)); |
| if (drain) { |
| Message message = null; |
| do { |
| message = consumer.receive(4000); |
| } while (message != null); |
| } else { |
| // block |
| while (true) { |
| consumer.receive(); |
| } |
| } |
| } finally { |
| |
| Thread.interrupted(); |
| if (!drain) { |
| Thread.sleep(5000); // delay closing of connection |
| } |
| |
| LOG.info("Now closing"); |
| if (connection != null) |
| connection.close(); |
| } |
| |
| } |
| |
| private static String msg() { |
| final StringBuilder builder = new StringBuilder(); |
| for (int i = 0; i < 100; i++) |
| builder.append("123457890"); |
| |
| return builder.toString(); |
| } |
| |
| private static interface UnsafeRunnable { |
| public void run() throws Exception; |
| } |
| |
| public static class ThreadSlot { |
| private UnsafeRunnable runnable; |
| private Thread thread; |
| } |
| |
| public static ThreadSlot runInThread(final UnsafeRunnable runnable) { |
| final Thread thread = new Thread(new Runnable() { |
| |
| @Override |
| public void run() { |
| try { |
| runnable.run(); |
| } catch (Exception e) { |
| //e.printStackTrace(); |
| } |
| |
| } |
| }); |
| |
| thread.start(); |
| |
| final ThreadSlot result = new ThreadSlot(); |
| result.thread = thread; |
| result.runnable = runnable; |
| return result; |
| } |
| } |