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Posted to commits@activemq.apache.org by ta...@apache.org on 2012/04/23 15:17:33 UTC

svn commit: r1329225 - /activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java

Author: tabish
Date: Mon Apr 23 13:17:33 2012
New Revision: 1329225

URL: http://svn.apache.org/viewvc?rev=1329225&view=rev
Log:
Additional test for: https://issues.apache.org/jira/browse/AMQ-3775

Added:
    activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java   (with props)

Added: activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java?rev=1329225&view=auto
==============================================================================
--- activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java (added)
+++ activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java Mon Apr 23 13:17:33 2012
@@ -0,0 +1,745 @@
+/**
+ * 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 ONDITIONS 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.usecases;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Vector;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.Session;
+import javax.management.ObjectName;
+
+import org.apache.activemq.ActiveMQConnectionFactory;
+import org.apache.activemq.broker.BrokerFactory;
+import org.apache.activemq.broker.BrokerService;
+import org.apache.activemq.command.ActiveMQTopic;
+import org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter;
+import org.apache.activemq.util.Wait;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/*
+ * A cut down version of DurableSubProcessWithRestartTest that focuses on kahaDB file retention
+ */
+public class DurableSubDelayedUnsubscribeTest {
+
+    private static final Logger LOG = LoggerFactory.getLogger(DurableSubDelayedUnsubscribeTest.class);
+
+    private static final long RUNTIME = 2 * 60 * 1000;
+    private static final int CARGO_SIZE = 400; // max
+    private static final int MAX_CLIENTS = 15;
+    private static boolean ALLOW_SUBSCRIPTION_ABANDONMENT = true;
+    private static final Vector<Throwable> exceptions = new Vector<Throwable>();
+
+    private BrokerService broker;
+    private ActiveMQTopic topic;
+
+    private ClientManager clientManager;
+    private Server server;
+    private HouseKeeper houseKeeper;
+
+    private final ReentrantReadWriteLock processLock = new ReentrantReadWriteLock(true);
+
+    @Test
+    public void testProcess() throws Exception {
+
+        server.start();
+        clientManager.start();
+
+        houseKeeper.start();
+
+        // Sleep to
+        Thread.sleep(RUNTIME);
+
+        // inform message producer to stop
+        server.stopped = true;
+
+        // add one Subscriber to the topic that will not be unsubscribed.
+        // should not have any pending messages in the kahadb store
+        Client lastClient = new Client(32000, ClientType.A);
+        lastClient.process(1000);
+
+        // stop client manager from creating any more clients
+        clientManager.stopped = true;
+
+        final BrokerService brokerService = this.broker;
+
+        // Wait for all client subscription to be unsubscribed or swept away.
+
+        assertTrue("should have only one inactiveSubscriber subscribed but was: " + brokerService.getAdminView().getInactiveDurableTopicSubscribers().length,
+            Wait.waitFor(new Wait.Condition() {
+
+                @Override
+                public boolean isSatisified() throws Exception {
+                    return brokerService.getAdminView().getInactiveDurableTopicSubscribers().length == 1;
+                }
+            }, TimeUnit.MINUTES.toMillis(3)));
+
+        assertTrue("should be no subscribers subscribed but was: " + brokerService.getAdminView().getDurableTopicSubscribers().length,
+            Wait.waitFor(new Wait.Condition() {
+
+                @Override
+                public boolean isSatisified() throws Exception {
+                    return brokerService.getAdminView().getDurableTopicSubscribers().length == 0;
+                }
+            }, TimeUnit.MINUTES.toMillis(3)));
+
+        processLock.writeLock().lock();
+
+        // check outcome.
+
+        ObjectName[] subscribers = broker.getAdminView().getDurableTopicSubscribers();
+        ObjectName[] inactiveSubscribers = broker.getAdminView().getInactiveDurableTopicSubscribers();
+        final KahaDBPersistenceAdapter persistenceAdapter = (KahaDBPersistenceAdapter) broker.getPersistenceAdapter();
+
+        printDebugClientInfo(subscribers, inactiveSubscribers, persistenceAdapter);
+
+        assertEquals("should have only one inactiveSubscriber subscribed", 1, broker.getAdminView().getInactiveDurableTopicSubscribers().length);
+        assertEquals("should be no subscribers subscribed", 0, broker.getAdminView().getDurableTopicSubscribers().length);
+
+        final KahaDBPersistenceAdapter pa = (KahaDBPersistenceAdapter) broker.getPersistenceAdapter();
+        assertTrue("should be less than 3 journal file left but was: " + persistenceAdapter.getStore().getJournal().getFileMap().size(),
+            Wait.waitFor(new Wait.Condition() {
+
+                @Override
+                public boolean isSatisified() throws Exception {
+                    return pa.getStore().getJournal().getFileMap().size() <= 3;
+                }
+            }, TimeUnit.MINUTES.toMillis(3)));
+
+        assertTrue("no exceptions: " + exceptions, exceptions.isEmpty());
+
+        LOG.info("DONE.");
+    }
+
+    private void printDebugClientInfo(ObjectName[] subscribers, ObjectName[] inactiveSubscribers, final KahaDBPersistenceAdapter pa) throws IOException {
+
+        LOG.info("====>>> START DEBUG Subscriber INFO");
+
+        LOG.info("Number of subscribers subscribed as seen through JMX is" + subscribers.length);
+
+        for (int i = 0; i < subscribers.length; i++) {
+            LOG.info("subscribers subscribed as seen throngh JMX: " + subscribers[i]);
+        }
+
+        LOG.info("Number of inactiveSubscribers subscribed as seen through JMX is" + inactiveSubscribers.length);
+
+        for (int i = 0; i < inactiveSubscribers.length; i++) {
+            LOG.info("subscribers subscribed as seen throngh JMX: " + inactiveSubscribers[i]);
+        }
+
+        LOG.info("ClientManager.clients size is" + clientManager.clients.size());
+
+        for (int i = 0; i < clientManager.clients.size(); i++) {
+            LOG.info("clients is: " + clientManager.clients.get(i));
+        }
+
+        LOG.info("housekeep.subscriptions size is " + houseKeeper.abandonedSubscriptions.size());
+
+        for (int i = 0; i < houseKeeper.abandonedSubscriptions.size(); i++) {
+            LOG.info("housekeep is: " + houseKeeper.abandonedSubscriptions.get(i));
+        }
+
+        LOG.info("number of journal files left" + pa.getStore().getJournal().getFileMap().size());
+
+        LOG.info("====>>> END DEBUG Subscriber INFO");
+    }
+
+    /**
+     * Creates batch of messages in a transaction periodically. The last message
+     * in the transaction is always a special message what contains info about
+     * the whole transaction.
+     * <p>
+     * Notifies the clients about the created messages also.
+     */
+    final class Server extends Thread {
+
+        public boolean stopped;
+        final String url = "vm://" + DurableSubDelayedUnsubscribeTest.getName() + "?"
+                + "jms.redeliveryPolicy.maximumRedeliveries=2&jms.redeliveryPolicy.initialRedeliveryDelay=500&"
+                + "jms.producerWindowSize=20971520&jms.prefetchPolicy.all=100&" + "jms.copyMessageOnSend=false&jms.disableTimeStampsByDefault=false&"
+                + "jms.alwaysSyncSend=true&jms.dispatchAsync=false&" + "jms.watchTopicAdvisories=false&" + "waitForStart=200&create=false";
+        final ConnectionFactory cf = new ActiveMQConnectionFactory(url);
+
+        final Object sendMutex = new Object();
+        final String[] cargos = new String[500];
+
+        int transRover = 0;
+        int messageRover = 0;
+
+        public Server() {
+            super("Server");
+            setDaemon(true);
+        }
+
+        @Override
+        public void run() {
+            try {
+                while (true) {
+
+                    if (stopped) {
+                        // server should stop producing
+                        break;
+                    }
+
+                    Thread.sleep(500);
+                    processLock.readLock().lock();
+                    try {
+                        send();
+                    } finally {
+                        processLock.readLock().unlock();
+                    }
+                }
+            } catch (Throwable e) {
+                exit("Server.run failed", e);
+            }
+        }
+
+        public void send() throws JMSException {
+            // do not create new clients now
+            // ToDo: Test this case later.
+            synchronized (sendMutex) {
+                int trans = ++transRover;
+                boolean relevantTrans = random(2) > 1;
+                ClientType clientType = relevantTrans ? ClientType.randomClientType() : null; // sends
+                                                                                              // this
+                                                                                              // types
+                int count = random(200);
+
+                LOG.info("Sending Trans[id=" + trans + ", count=" + count + ", clientType=" + clientType + "]");
+
+                Connection con = cf.createConnection();
+                Session sess = con.createSession(true, Session.SESSION_TRANSACTED);
+                MessageProducer prod = sess.createProducer(null);
+
+                for (int i = 0; i < count; i++) {
+                    Message message = sess.createMessage();
+                    message.setIntProperty("ID", ++messageRover);
+                    message.setIntProperty("TRANS", trans);
+                    String type = clientType != null ? clientType.randomMessageType() : ClientType.randomNonRelevantMessageType();
+                    message.setStringProperty("TYPE", type);
+
+                    if (CARGO_SIZE > 0)
+                        message.setStringProperty("CARGO", getCargo(random(CARGO_SIZE)));
+
+                    prod.send(topic, message);
+
+                }
+
+                Message message = sess.createMessage();
+                message.setIntProperty("ID", ++messageRover);
+                message.setIntProperty("TRANS", trans);
+                message.setBooleanProperty("COMMIT", true);
+                message.setBooleanProperty("RELEVANT", relevantTrans);
+                prod.send(topic, message);
+
+                sess.commit();
+                LOG.info("Committed Trans[id=" + trans + ", count=" + count + ", clientType=" + clientType + "], ID=" + messageRover);
+
+                sess.close();
+                con.close();
+            }
+        }
+
+        private String getCargo(int length) {
+            if (length == 0)
+                return null;
+
+            if (length < cargos.length) {
+                String result = cargos[length];
+                if (result == null) {
+                    result = getCargoImpl(length);
+                    cargos[length] = result;
+                }
+                return result;
+            }
+            return getCargoImpl(length);
+        }
+
+        private String getCargoImpl(int length) {
+            StringBuilder sb = new StringBuilder(length);
+            for (int i = length; --i >= 0;) {
+                sb.append('a');
+            }
+            return sb.toString();
+        }
+    }
+
+    /**
+     * Clients listen on different messages in the topic. The 'TYPE' property
+     * helps the client to select the proper messages.
+     */
+    private enum ClientType {
+        A("a", "b", "c"), B("c", "d", "e"), C("d", "e", "f"), D("g", "h");
+
+        public final String[] messageTypes;
+
+        public final String selector;
+
+        ClientType(String... messageTypes) {
+            this.messageTypes = messageTypes;
+
+            StringBuilder sb = new StringBuilder("TYPE in (");
+            for (int i = 0; i < messageTypes.length; i++) {
+                if (i > 0)
+                    sb.append(", ");
+                sb.append('\'').append(messageTypes[i]).append('\'');
+            }
+            sb.append(')');
+            selector = sb.toString();
+        }
+
+        public static ClientType randomClientType() {
+            return values()[DurableSubDelayedUnsubscribeTest.random(values().length - 1)];
+        }
+
+        public final String randomMessageType() {
+            return messageTypes[DurableSubDelayedUnsubscribeTest.random(messageTypes.length - 1)];
+        }
+
+        public static String randomNonRelevantMessageType() {
+            return Integer.toString(DurableSubDelayedUnsubscribeTest.random(20));
+        }
+
+        @Override
+        public final String toString() {
+            return this.name() /* + '[' + selector + ']' */;
+        }
+    }
+
+    /**
+     * Creates new cliens.
+     */
+    private final class ClientManager extends Thread {
+
+        private int clientRover = 0;
+
+        private final CopyOnWriteArrayList<Client> clients = new CopyOnWriteArrayList<Client>();
+
+        private boolean stopped;
+
+        public ClientManager() {
+            super("ClientManager");
+            setDaemon(true);
+        }
+
+        @Override
+        public void run() {
+            try {
+                while (true) {
+                    if (clients.size() < MAX_CLIENTS) {
+
+                        if (stopped) {
+                            // get out, don't start any more threads
+                            break;
+                        }
+                        processLock.readLock().lock();
+                        try {
+                            createNewClient();
+                        } finally {
+                            processLock.readLock().unlock();
+                        }
+                    }
+
+                    int size = clients.size();
+                    sleepRandom(size * 3 * 1000, size * 6 * 1000);
+                }
+            } catch (Throwable e) {
+                exit("ClientManager.run failed.", e);
+            }
+        }
+
+        private void createNewClient() throws JMSException {
+            ClientType type = ClientType.randomClientType();
+
+            Client client;
+            synchronized (server.sendMutex) {
+                client = new Client(++clientRover, type);
+                clients.add(client);
+            }
+            client.start();
+
+            LOG.info(client.toString() + " created. " + this);
+        }
+
+        public void removeClient(Client client) {
+            clients.remove(client);
+        }
+
+        @Override
+        public String toString() {
+            StringBuilder sb = new StringBuilder("ClientManager[count=");
+            sb.append(clients.size());
+            sb.append(", clients=");
+            boolean sep = false;
+            for (Client client : clients) {
+                if (sep)
+                    sb.append(", ");
+                else
+                    sep = true;
+                sb.append(client.toString());
+            }
+            sb.append(']');
+            return sb.toString();
+        }
+    }
+
+    /**
+     * Consumes massages from a durable subscription. Goes online/offline
+     * periodically. Checks the incoming messages against the sent messages of
+     * the server.
+     */
+    private final class Client extends Thread {
+
+        String url = "failover:(tcp://localhost:61656?wireFormat.maxInactivityDuration=0)?" + "jms.watchTopicAdvisories=false&"
+                + "jms.alwaysSyncSend=true&jms.dispatchAsync=true&" + "jms.producerWindowSize=20971520&" + "jms.copyMessageOnSend=false&"
+                + "initialReconnectDelay=100&maxReconnectDelay=30000&" + "useExponentialBackOff=true";
+        final ConnectionFactory cf = new ActiveMQConnectionFactory(url);
+
+        public static final String SUBSCRIPTION_NAME = "subscription";
+
+        private final int id;
+        private final String conClientId;
+
+        private final int lifetime = 60 * 1000;
+        private final int online = 1 * 1000;
+        private final int offline = 59 * 1000;
+
+        private final ClientType clientType;
+        private final String selector;
+
+        public Client(int id, ClientType clientType) throws JMSException {
+            super("Client" + id);
+            setDaemon(true);
+
+            this.id = id;
+            conClientId = "cli" + id;
+            this.clientType = clientType;
+            selector = "(COMMIT = true and RELEVANT = true) or " + clientType.selector;
+
+            subscribe();
+        }
+
+        @Override
+        public void run() {
+            // long end = System.currentTimeMillis() + lifetime.next();
+            long end = System.currentTimeMillis() + lifetime;
+            try {
+                boolean sleep = false;
+                while (true) {
+                    long max = end - System.currentTimeMillis();
+                    if (max <= 0)
+                        break;
+
+                    if (sleep)
+                        Thread.sleep(offline);
+                    // offline.sleepRandom();
+                    else
+                        sleep = true;
+
+                    processLock.readLock().lock();
+                    try {
+                        process(online);
+                    } finally {
+                        processLock.readLock().unlock();
+                    }
+                }
+
+                // 50% unsubscribe, 50% abondon subscription
+                if (!ALLOW_SUBSCRIPTION_ABANDONMENT) {
+                    unsubscribe();
+                    ALLOW_SUBSCRIPTION_ABANDONMENT = true;
+                } else {
+
+                    LOG.info("Client abandon the subscription. " + this);
+
+                    // housekeeper should sweep these abandoned subscriptions
+                    houseKeeper.abandonedSubscriptions.add(conClientId);
+                    ALLOW_SUBSCRIPTION_ABANDONMENT = false;
+                }
+            } catch (Throwable e) {
+                exit(toString() + " failed.", e);
+            }
+
+            clientManager.removeClient(this);
+            LOG.info(toString() + " DONE.");
+        }
+
+        private void process(long processingTime) throws JMSException {
+            long end = System.currentTimeMillis() + processingTime;
+            long hardEnd = end + 20000; // wait to finish the transaction.
+            boolean inTransaction = false;
+            int transCount = 0;
+
+            LOG.info(toString() + " ONLINE.");
+            Connection con = openConnection();
+            Session sess = con.createSession(false, Session.CLIENT_ACKNOWLEDGE);
+            MessageConsumer consumer = sess.createDurableSubscriber(topic, SUBSCRIPTION_NAME, selector, false);
+            try {
+                do {
+                    long max = end - System.currentTimeMillis();
+                    if (max <= 0) {
+                        if (!inTransaction)
+                            break;
+
+                        max = hardEnd - System.currentTimeMillis();
+                        if (max <= 0)
+                            exit("" + this + " failed: Transaction is not finished.");
+                    }
+
+                    Message message = consumer.receive(max);
+                    if (message == null)
+                        continue;
+
+                    if (message.propertyExists("COMMIT")) {
+                        message.acknowledge(); // CLIENT_ACKNOWLEDGE
+
+                        LOG.info("Received Trans[id=" + message.getIntProperty("TRANS") + ", count=" + transCount + "] in " + this + ".");
+
+                        inTransaction = false;
+                        transCount = 0;
+                    } else {
+                        inTransaction = true;
+                        transCount++;
+                    }
+                } while (true);
+            } finally {
+                sess.close();
+                con.close();
+                LOG.info(toString() + " OFFLINE.");
+            }
+        }
+
+        private Connection openConnection() throws JMSException {
+            Connection con = cf.createConnection();
+            con.setClientID(conClientId);
+            con.start();
+            return con;
+        }
+
+        private void subscribe() throws JMSException {
+            Connection con = openConnection();
+            Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);
+            session.createDurableSubscriber(topic, SUBSCRIPTION_NAME, selector, true);
+            session.close();
+            con.close();
+        }
+
+        private void unsubscribe() throws JMSException {
+            Connection con = openConnection();
+            Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);
+            session.unsubscribe(SUBSCRIPTION_NAME);
+            session.close();
+            con.close();
+        }
+
+        @Override
+        public String toString() {
+            return "Client[id=" + id + ", type=" + clientType + "]";
+        }
+    }
+
+    /**
+     * Sweeps out not-used durable subscriptions.
+     */
+    private final class HouseKeeper extends Thread {
+
+        private HouseKeeper() {
+            super("HouseKeeper");
+            setDaemon(true);
+        }
+
+        public final CopyOnWriteArrayList<String> abandonedSubscriptions = new CopyOnWriteArrayList<String>();
+
+        @Override
+        public void run() {
+            while (true) {
+                try {
+                    Thread.sleep(3 * 60 * 1000);
+
+                    processLock.readLock().lock();
+                    try {
+                        sweep();
+                    } finally {
+                        processLock.readLock().unlock();
+                    }
+                } catch (InterruptedException ex) {
+                    break;
+                } catch (Throwable e) {
+                    Exception log = new Exception("HouseKeeper failed.", e);
+                    log.printStackTrace();
+                }
+            }
+        }
+
+        private void sweep() throws Exception {
+            LOG.info("Housekeeper sweeping.");
+
+            int closed = 0;
+            ArrayList<String> sweeped = new ArrayList<String>();
+            try {
+                for (String clientId : abandonedSubscriptions) {
+                    LOG.info("Sweeping out subscription of " + clientId + ".");
+                    broker.getAdminView().destroyDurableSubscriber(clientId, Client.SUBSCRIPTION_NAME);
+                    sweeped.add(clientId);
+                    closed++;
+                }
+            } catch (Exception ignored) {
+                LOG.info("Ex on destroy sub " + ignored);
+            } finally {
+                abandonedSubscriptions.removeAll(sweeped);
+            }
+
+            LOG.info("Housekeeper sweeped out " + closed + " subscriptions.");
+        }
+    }
+
+    public static int random(int max) {
+        return (int) (Math.random() * (max + 1));
+    }
+
+    public static int random(int min, int max) {
+        return random(max - min) + min;
+    }
+
+    public static void sleepRandom(int maxMillis) throws InterruptedException {
+        Thread.sleep(random(maxMillis));
+    }
+
+    public static void sleepRandom(int minMillis, int maxMillis) throws InterruptedException {
+        Thread.sleep(random(minMillis, maxMillis));
+    }
+
+    public static final class Random {
+
+        final int min;
+        final int max;
+
+        Random(int min, int max) {
+            this.min = min;
+            this.max = max;
+        }
+
+        public int next() {
+            return random(min, max);
+        }
+
+        public void sleepRandom() throws InterruptedException {
+            DurableSubDelayedUnsubscribeTest.sleepRandom(min, max);
+        }
+    }
+
+    public static void exit(String message) {
+        exit(message, null);
+    }
+
+    public static void exit(String message, Throwable e) {
+        Throwable cause = new RuntimeException(message, e);
+        LOG.error(message, cause);
+        exceptions.add(cause);
+        fail(cause.toString());
+    }
+
+    @Before
+    public void setUp() throws Exception {
+        topic = new ActiveMQTopic("TopicT");
+        startBroker();
+
+        clientManager = new ClientManager();
+        server = new Server();
+        houseKeeper = new HouseKeeper();
+
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        destroyBroker();
+    }
+
+    private void startBroker() throws Exception {
+        startBroker(true);
+    }
+
+    private void startBroker(boolean deleteAllMessages) throws Exception {
+        if (broker != null)
+            return;
+
+        broker = BrokerFactory.createBroker("broker:(vm://" + getName() + ")");
+        broker.setBrokerName(getName());
+        broker.setAdvisorySupport(false);
+        broker.setDeleteAllMessagesOnStartup(deleteAllMessages);
+
+        File kahadbData = new File("activemq-data/" + getName() + "-kahadb");
+        if (deleteAllMessages)
+            delete(kahadbData);
+
+        broker.setPersistent(true);
+        KahaDBPersistenceAdapter kahadb = new KahaDBPersistenceAdapter();
+        kahadb.setDirectory(kahadbData);
+        kahadb.setJournalMaxFileLength(512 * 1024);
+        broker.setPersistenceAdapter(kahadb);
+
+        broker.addConnector("tcp://localhost:61656");
+
+        broker.getSystemUsage().getMemoryUsage().setLimit(256 * 1024 * 1024);
+        broker.getSystemUsage().getTempUsage().setLimit(256 * 1024 * 1024);
+        broker.getSystemUsage().getStoreUsage().setLimit(256 * 1024 * 1024);
+
+        broker.start();
+    }
+
+    protected static String getName() {
+        return "DurableSubProcessWithRestartTest";
+    }
+
+    private static boolean delete(File path) {
+        if (path == null)
+            return true;
+
+        if (path.isDirectory()) {
+            for (File file : path.listFiles()) {
+                delete(file);
+            }
+        }
+        return path.delete();
+    }
+
+    private void destroyBroker() throws Exception {
+        if (broker == null)
+            return;
+
+        broker.stop();
+        broker = null;
+    }
+}

Propchange: activemq/trunk/activemq-core/src/test/java/org/apache/activemq/usecases/DurableSubDelayedUnsubscribeTest.java
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