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* 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,
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* See the License for the specific language governing permissions and
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package org.apache.activemq.bugs;
import java.io.File;
import java.io.FilenameFilter;
import java.util.Arrays;
import java.util.Properties;
import java.util.Vector;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TopicSubscriber;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.BrokerView;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.apache.activemq.store.PersistenceAdapter;
import org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter;
import org.apache.activemq.store.kahadb.disk.journal.Journal;
import org.apache.activemq.util.IntrospectionSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
// variation on AMQ2584 where the DLQ consumer works in parallel to producer so
// that some dups are not suppressed as they are already acked by the consumer
// the audit needs to be disabled to allow these dupes to be consumed
public class AMQ2584ConcurrentDlqTest extends org.apache.activemq.TestSupport {
static final Logger LOG = LoggerFactory.getLogger(AMQ2584ConcurrentDlqTest.class);
BrokerService broker = null;
ActiveMQTopic topic;
ActiveMQConnection consumerConnection = null, producerConnection = null, dlqConnection = null;
Session consumerSession;
Session producerSession;
MessageProducer producer;
Vector<TopicSubscriber> duralbeSubs = new Vector<TopicSubscriber>();
final int numMessages = 1000;
final int numDurableSubs = 2;
String data;
private long dlqConsumerLastReceivedTimeStamp;
private AtomicLong dlqReceivedCount = new AtomicLong(0);
// 2 deliveries of each message, 3 producers
CountDownLatch redeliveryConsumerLatch = new CountDownLatch(((2 * numMessages) * numDurableSubs) - 1);
// should get at least numMessages, possibly more
CountDownLatch dlqConsumerLatch = new CountDownLatch((numMessages - 1));
public void testSize() throws Exception {
openConsumer(redeliveryConsumerLatch);
openDlqConsumer(dlqConsumerLatch);
assertEquals(0, broker.getAdminView().getStorePercentUsage());
for (int i = 0; i < numMessages; i++) {
sendMessage(false);
}
final BrokerView brokerView = broker.getAdminView();
broker.getSystemUsage().getStoreUsage().isFull();
LOG.info("store percent usage: " + brokerView.getStorePercentUsage());
assertTrue("redelivery consumer got all it needs, remaining: "
+ redeliveryConsumerLatch.getCount(), redeliveryConsumerLatch.await(60, TimeUnit.SECONDS));
assertTrue("dql consumer got all it needs", dlqConsumerLatch.await(60, TimeUnit.SECONDS));
closeConsumer();
LOG.info("Giving dlq a chance to clear down once topic consumer is closed");
// consumer all of the duplicates that arrived after the first ack
closeDlqConsumer();
//get broker a chance to clean obsolete messages, wait 2*cleanupInterval
Thread.sleep(5000);
FilenameFilter justLogFiles = new FilenameFilter() {
public boolean accept(File file, String s) {
return s.endsWith(".log");
}
};
int numFiles = ((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getDirectory().list(justLogFiles).length;
if (numFiles > 2) {
LOG.info(Arrays.toString(((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getDirectory().list(justLogFiles)));
}
LOG.info("num files: " + numFiles);
assertEquals("kahaDB dir should contain 1 db file,is: " + numFiles, 1, numFiles);
}
private void openConsumer(final CountDownLatch latch) throws Exception {
consumerConnection = (ActiveMQConnection) createConnection();
consumerConnection.setClientID("cliID");
consumerConnection.start();
consumerSession = consumerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageListener listener = new MessageListener() {
public void onMessage(Message message) {
latch.countDown();
try {
consumerSession.recover();
} catch (Exception ignored) {
ignored.printStackTrace();
}
}
};
for (int i = 1; i <= numDurableSubs; i++) {
TopicSubscriber sub = consumerSession.createDurableSubscriber(topic, "subName" + i);
sub.setMessageListener(listener);
duralbeSubs.add(sub);
}
}
private void openDlqConsumer(final CountDownLatch received) throws Exception {
dlqConnection = (ActiveMQConnection) createConnection();
Session dlqSession = dlqConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageConsumer dlqConsumer = dlqSession.createConsumer(new ActiveMQQueue("ActiveMQ.DLQ"));
dlqConsumer.setMessageListener(new MessageListener() {
public void onMessage(Message message) {
if (received.getCount() > 0 && received.getCount() % 200 == 0) {
LOG.info("remaining on DLQ: " + received.getCount());
}
received.countDown();
dlqConsumerLastReceivedTimeStamp = System.currentTimeMillis();
dlqReceivedCount.incrementAndGet();
}
});
dlqConnection.start();
}
private void closeConsumer() throws JMSException {
for (TopicSubscriber sub : duralbeSubs) {
sub.close();
}
if (consumerSession != null) {
for (int i = 1; i <= numDurableSubs; i++) {
consumerSession.unsubscribe("subName" + i);
}
}
if (consumerConnection != null) {
consumerConnection.close();
consumerConnection = null;
}
}
private void closeDlqConsumer() throws JMSException, InterruptedException {
final long limit = System.currentTimeMillis() + 30 * 1000;
if (dlqConsumerLastReceivedTimeStamp > 0) {
while (System.currentTimeMillis() < dlqConsumerLastReceivedTimeStamp + 5000
&& System.currentTimeMillis() < limit) {
LOG.info("waiting for DLQ do drain, receivedCount: " + dlqReceivedCount);
TimeUnit.SECONDS.sleep(1);
}
}
if (dlqConnection != null) {
dlqConnection.close();
dlqConnection = null;
}
}
private void sendMessage(boolean filter) throws Exception {
if (producerConnection == null) {
producerConnection = (ActiveMQConnection) createConnection();
producerConnection.start();
producerSession = producerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
producer = producerSession.createProducer(topic);
}
Message message = producerSession.createMessage();
message.setStringProperty("data", data);
producer.send(message);
}
private void startBroker(boolean deleteMessages) throws Exception {
broker = new BrokerService();
broker.setAdvisorySupport(false);
broker.setBrokerName("testStoreSize");
PolicyMap map = new PolicyMap();
PolicyEntry entry = new PolicyEntry();
entry.setEnableAudit(false);
map.setDefaultEntry(entry);
broker.setDestinationPolicy(map);
if (deleteMessages) {
broker.setDeleteAllMessagesOnStartup(true);
}
configurePersistenceAdapter(broker.getPersistenceAdapter());
broker.getSystemUsage().getStoreUsage().setLimit(200 * 1000 * 1000);
broker.start();
}
private void configurePersistenceAdapter(PersistenceAdapter persistenceAdapter) {
Properties properties = new Properties();
String maxFileLengthVal = String.valueOf(2 * 1024 * 1024);
properties.put("journalMaxFileLength", maxFileLengthVal);
properties.put("maxFileLength", maxFileLengthVal);
properties.put("cleanupInterval", "2000");
properties.put("checkpointInterval", "2000");
properties.put("preallocationScope", Journal.PreallocationScope.ENTIRE_JOURNAL.name());
// there are problems with duplicate dispatch in the cursor, which maintain
// a map of messages. A dup dispatch can be dropped.
// see: org.apache.activemq.broker.region.cursors.OrderedPendingList
// Adding duplicate detection to the default DLQ strategy removes the problem
// which means we can leave the default for concurrent store and dispatch q
//properties.put("concurrentStoreAndDispatchQueues", "false");
IntrospectionSupport.setProperties(persistenceAdapter, properties);
}
private void stopBroker() throws Exception {
if (broker != null)
broker.stop();
broker = null;
}
protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
return new ActiveMQConnectionFactory("vm://testStoreSize?jms.watchTopicAdvisories=false&jms.redeliveryPolicy.maximumRedeliveries=1&jms.redeliveryPolicy.initialRedeliveryDelay=0&waitForStart=5000&create=false");
}
@Override
protected void setUp() throws Exception {
super.setUp();
StringBuilder sb = new StringBuilder(5000);
for (int i = 0; i < 5000; i++) {
sb.append('a');
}
data = sb.toString();
startBroker(true);
topic = (ActiveMQTopic) createDestination();
}
@Override
protected void tearDown() throws Exception {
stopBroker();
super.tearDown();
}
}