rework fix for https://issues.apache.org/activemq/browse/AMQ-1730 - better support for unordered message consumption when there are multiple short lived consumers, eg with spring mlc and concurrent consumers > 1

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@963894 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gary Tully 2010-07-13 22:40:58 +00:00
parent 7017d09113
commit 73433372e9
4 changed files with 193 additions and 6 deletions

View File

@ -467,15 +467,37 @@ public class Queue extends BaseDestination implements Task, UsageListener {
// redeliver inflight messages
for (MessageReference ref : sub.remove(context, this)) {
boolean markAsRedelivered = false;
MessageReference lastDeliveredRef = null;
List<MessageReference> unAckedMessages = sub.remove(context, this);
// locate last redelivered in unconsumed list (list in delivery rather than seq order)
if (lastDeiveredSequenceId != 0) {
for (MessageReference ref : unAckedMessages) {
if (ref.getMessageId().getBrokerSequenceId() == lastDeiveredSequenceId) {
lastDeliveredRef = ref;
markAsRedelivered = true;
LOG.debug("found lastDeliveredSeqID: " + lastDeiveredSequenceId + ", message reference: " + ref.getMessageId());
break;
}
}
}
for (MessageReference ref : unAckedMessages) {
QueueMessageReference qmr = (QueueMessageReference) ref;
if (qmr.getLockOwner() == sub) {
qmr.unlock();
// only increment redelivery if it was delivered or we
// have no delivery information
if (lastDeiveredSequenceId == 0
|| qmr.getMessageId().getBrokerSequenceId() <= lastDeiveredSequenceId) {
if (lastDeiveredSequenceId == 0) {
qmr.incrementRedeliveryCounter();
} else {
if (markAsRedelivered) {
qmr.incrementRedeliveryCounter();
}
if (ref == lastDeliveredRef) {
// all that follow were not redelivered
markAsRedelivered = false;
}
}
}
redeliveredWaitingDispatch.add(qmr);

View File

@ -807,7 +807,7 @@ public class JMSConsumerTest extends JmsTestSupport {
Message msg = redispatchConsumer.receive(1000);
assertNotNull(msg);
assertTrue(msg.getJMSRedelivered());
assertTrue("redelivered flag set", msg.getJMSRedelivered());
assertEquals(2, msg.getLongProperty("JMSXDeliveryCount"));
msg = redispatchConsumer.receive(1000);

View File

@ -98,7 +98,7 @@ public class JmsRollbackRedeliveryTest extends AutoFailTestSupport {
session.commit();
} else {
LOG.info("Rollback message " + msg.getText() + " id: " + msg.getJMSMessageID());
assertFalse(msg.getJMSRedelivered());
assertFalse("should not have redelivery flag set, id: " + msg.getJMSMessageID(), msg.getJMSRedelivered());
session.rollback();
}
}

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@ -0,0 +1,165 @@
/**
* 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
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.bugs;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.jms.listener.DefaultMessageListenerContainer;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import java.util.concurrent.CountDownLatch;
public class AMQ1730Test extends TestCase {
private static final Log log = LogFactory.getLog(AMQ1730Test.class);
private static final String JMSX_DELIVERY_COUNT = "JMSXDeliveryCount";
BrokerService brokerService;
private static final int MESSAGE_COUNT = 250;
public AMQ1730Test() {
super();
}
@Override
protected void setUp() throws Exception {
super.setUp();
brokerService = new BrokerService();
brokerService.addConnector("tcp://localhost:0");
brokerService.setUseJmx(false);
brokerService.start();
}
@Override
protected void tearDown() throws Exception {
super.tearDown();
brokerService.stop();
}
public void testRedelivery() throws Exception {
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
brokerService.getTransportConnectors().get(0).getConnectUri().toString() + "?jms.prefetchPolicy.queuePrefetch=100");
Connection connection = connectionFactory.createConnection();
connection.start();
Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
Queue queue = session.createQueue("queue.test");
MessageProducer producer = session.createProducer(queue);
for (int i = 0; i < MESSAGE_COUNT; i++) {
log.info("Sending message " + i);
TextMessage message = session.createTextMessage("Message " + i);
producer.send(message);
}
producer.close();
session.close();
connection.stop();
connection.close();
final CountDownLatch countDownLatch = new CountDownLatch(MESSAGE_COUNT);
final ValueHolder<Boolean> messageRedelivered = new ValueHolder<Boolean>(false);
DefaultMessageListenerContainer messageListenerContainer = new DefaultMessageListenerContainer();
messageListenerContainer.setConnectionFactory(connectionFactory);
messageListenerContainer.setDestination(queue);
messageListenerContainer.setAutoStartup(false);
messageListenerContainer.setConcurrentConsumers(1);
messageListenerContainer.setMaxConcurrentConsumers(16);
messageListenerContainer.setMaxMessagesPerTask(10);
messageListenerContainer.setReceiveTimeout(10000);
messageListenerContainer.setRecoveryInterval(5000);
messageListenerContainer.setAcceptMessagesWhileStopping(false);
messageListenerContainer.setCacheLevel(DefaultMessageListenerContainer.CACHE_NONE);
messageListenerContainer.setSessionTransacted(false);
messageListenerContainer.setMessageListener(new MessageListener() {
public void onMessage(Message message) {
if (!(message instanceof TextMessage)) {
throw new RuntimeException();
}
try {
TextMessage textMessage = (TextMessage) message;
String text = textMessage.getText();
int messageDeliveryCount = message.getIntProperty(JMSX_DELIVERY_COUNT);
if (messageDeliveryCount > 1) {
messageRedelivered.set(true);
}
log.info("[Count down latch: " + countDownLatch.getCount() + "][delivery count: " + messageDeliveryCount + "] - " + "Received message with id: " + message.getJMSMessageID() + " with text: " + text);
} catch (JMSException e) {
e.printStackTrace();
}
finally {
countDownLatch.countDown();
}
}
});
messageListenerContainer.afterPropertiesSet();
messageListenerContainer.start();
countDownLatch.await();
messageListenerContainer.stop();
messageListenerContainer.destroy();
assertFalse("no message has redelivery > 1", messageRedelivered.get());
}
private class ValueHolder<T> {
private T value;
public ValueHolder(T value) {
super();
this.value = value;
}
void set(T value) {
this.value = value;
}
T get() {
return value;
}
}
}