Apache
/
activemq
mirror of https://github.com/apache/activemq.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

All message dispatching should occur from the session's executor. Also, we should dispatch any messages in the consumers queue before dispatching messages in the session's queues. 

http://issues.apache.org/activemq/browse/AMQ-1031
http://issues.apache.org/activemq/browse/AMQ-1032



git-svn-id: https://svn.apache.org/repos/asf/incubator/activemq/trunk@472345 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Hiram R. Chirino 2006-11-08 00:14:56 +00:00
parent c636b3798f
commit da5139c24b
8 changed files with 127 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
activemq-core/pom.xml
View File

@ -254,8 +254,6 @@
<!-- TODO need to get the JUnit test configured to create SSL sockets nicely via system properties -->
<exclude>**/StompSslTest.*</exclude>
<!-- TODO reproduces a bad ack bug -->
<exclude>**/RollbacksWhileConsumingLargeQueueTest.*</exclude>
</excludes>
</configuration>
</plugin>

121
activemq-core/src/main/java/org/apache/activemq/ActiveMQMessageConsumer.java
View File

@ -776,6 +776,11 @@ public class ActiveMQMessageConsumer implements MessageAvailableConsumer, StatsC
}
if(deliveredMessages.isEmpty())
return;
// Only increase the redlivery delay after the first redelivery..
if( rollbackCounter > 0 )
redeliveryDelay = redeliveryPolicy.getRedeliveryDelay(redeliveryDelay);
rollbackCounter++;
if(rollbackCounter>redeliveryPolicy.getMaximumRedeliveries()){
// We need to NACK the messages so that they get sent to the
@ -791,23 +796,29 @@ public class ActiveMQMessageConsumer implements MessageAvailableConsumer, StatsC
}else{
// stop the delivery of messages.
unconsumedMessages.stop();
// Start up the delivery again a little later.
redeliveryDelay = redeliveryPolicy.getRedeliveryDelay(redeliveryDelay);
Scheduler.executeAfterDelay(new Runnable(){
public void run(){
try{
if(started.get())
start();
}catch(JMSException e){
session.connection.onAsyncException(e);
}
}
},redeliveryDelay);
for(Iterator iter=deliveredMessages.iterator();iter.hasNext();){
MessageDispatch md=(MessageDispatch) iter.next();
md.getMessage().onMessageRolledBack();
unconsumedMessages.enqueueFirst(md);
}
if( redeliveryDelay > 0 ) {
// Start up the delivery again a little later.
Scheduler.executeAfterDelay(new Runnable(){
public void run(){
try{
if(started.get())
start();
}catch(JMSException e){
session.connection.onAsyncException(e);
}
}
},redeliveryDelay);
} else {
start();
}
}
deliveredCounter-=deliveredMessages.size();
deliveredMessages.clear();
@ -820,31 +831,33 @@ public class ActiveMQMessageConsumer implements MessageAvailableConsumer, StatsC
public void dispatch(MessageDispatch md) {
MessageListener listener = this.messageListener;
try {
if (!unconsumedMessages.isClosed()) {
if (listener != null && unconsumedMessages.isRunning() ) {
ActiveMQMessage message = createActiveMQMessage(md);
beforeMessageIsConsumed(md);
try {
listener.onMessage(message);
afterMessageIsConsumed(md, false);
} catch (RuntimeException e) {
if ( session.isDupsOkAcknowledge() || session.isAutoAcknowledge() ) {
// Redeliver the message
} else {
// Transacted or Client ack: Deliver the next message.
afterMessageIsConsumed(md, false);
}
log.warn("Exception while processing message: " + e, e);
}
} else {
unconsumedMessages.enqueue(md);
if (availableListener != null) {
availableListener.onMessageAvailable(this);
}
}
synchronized(unconsumedMessages.getMutex()){
if (!unconsumedMessages.isClosed()) {
if (listener != null && unconsumedMessages.isRunning() ) {
ActiveMQMessage message = createActiveMQMessage(md);
beforeMessageIsConsumed(md);
try {
listener.onMessage(message);
afterMessageIsConsumed(md, false);
} catch (RuntimeException e) {
if ( session.isDupsOkAcknowledge() || session.isAutoAcknowledge() ) {
// Redeliver the message
} else {
// Transacted or Client ack: Deliver the next message.
afterMessageIsConsumed(md, false);
}
log.warn("Exception while processing message: " + e, e);
}
} else {
unconsumedMessages.enqueue(md);
if (availableListener != null) {
availableListener.onMessageAvailable(this);
}
}
}
}
} catch (Exception e) {
log.warn("could not process message: " + md, e);
session.connection.onAsyncException(e);
}
}
@ -853,18 +866,12 @@ public class ActiveMQMessageConsumer implements MessageAvailableConsumer, StatsC
}
public void start() throws JMSException {
if (unconsumedMessages.isClosed()) {
return;
}
started.set(true);
unconsumedMessages.start();
MessageListener listener = this.messageListener;
if( listener!=null ) {
MessageDispatch md;
while( (md = unconsumedMessages.dequeueNoWait())!=null ) {
ActiveMQMessage message = createActiveMQMessage(md);
beforeMessageIsConsumed(md);
listener.onMessage(message);
afterMessageIsConsumed(md, false);
}
}
session.executor.wakeup();
}
public void stop() {
@ -876,4 +883,28 @@ public class ActiveMQMessageConsumer implements MessageAvailableConsumer, StatsC
return "ActiveMQMessageConsumer { value=" +info.getConsumerId()+", started=" +started.get()+" }";
}
/**
* Delivers a message to the message listener.
* @return
* @throws JMSException
*/
public boolean iterate() {
MessageListener listener = this.messageListener;
if( listener!=null ) {
MessageDispatch md = unconsumedMessages.dequeueNoWait();
if( md!=null ) {
try {
ActiveMQMessage message = createActiveMQMessage(md);
beforeMessageIsConsumed(md);
listener.onMessage(message);
afterMessageIsConsumed(md, false);
} catch (JMSException e) {
session.connection.onAsyncException(e);
}
return true;
}
}
return false;
}
}

14
activemq-core/src/main/java/org/apache/activemq/ActiveMQSessionExecutor.java
View File

@ -61,8 +61,8 @@ public class ActiveMQSessionExecutor implements Task {
}
}
private void wakeup() {
if( !dispatchedBySessionPool && hasUncomsumedMessages() ) {
public void wakeup() {
if( !dispatchedBySessionPool ) {
if( taskRunner!=null ) {
try {
taskRunner.wakeup();
@ -148,6 +148,16 @@ public class ActiveMQSessionExecutor implements Task {
}
public boolean iterate() {
// Deliver any messages queued on the consumer to their listeners.
for (Iterator i = this.session.consumers.iterator(); i.hasNext();) {
ActiveMQMessageConsumer consumer = (ActiveMQMessageConsumer) i.next();
if( consumer.iterate() ) {
return true;
}
}
// No messages left queued on the listeners.. so now dispatch messages queued on the session
MessageDispatch message = messageQueue.dequeueNoWait();
if( message==null ) {
return false;

2
activemq-core/src/main/java/org/apache/activemq/RedeliveryPolicy.java
View File

@ -32,7 +32,7 @@ public class RedeliveryPolicy implements Cloneable, Serializable {
// +/-15% for a 30% spread -cgs
protected double collisionAvoidanceFactor = 0.15d;
protected int maximumRedeliveries = 5;
protected int maximumRedeliveries = 6;
protected long initialRedeliveryDelay = 1000L;
protected static Random randomNumberGenerator;
protected boolean useCollisionAvoidance = false;

4
activemq-core/src/main/java/org/apache/activemq/broker/region/PrefetchSubscription.java
View File

@ -183,6 +183,10 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
prefetchExtension--;
}
}
public void afterRollback() throws Exception {
super.afterRollback();
}
});
}
index++;

32
activemq-core/src/test/java/org/apache/activemq/MessageListenerRedeliveryTest.java
View File

@ -57,7 +57,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
protected RedeliveryPolicy getRedeliveryPolicy() {
RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
redeliveryPolicy.setInitialRedeliveryDelay(1000);
redeliveryPolicy.setMaximumRedeliveries(2);
redeliveryPolicy.setMaximumRedeliveries(3);
redeliveryPolicy.setBackOffMultiplier((short) 2);
redeliveryPolicy.setUseExponentialBackOff(true);
return redeliveryPolicy;
@ -82,7 +82,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
try {
log.info("Message Received: " + message);
counter++;
if (counter <= 3) {
if (counter <= 4) {
log.info("Message Rollback.");
session.rollback();
} else {
@ -119,24 +119,26 @@ public class MessageListenerRedeliveryTest extends TestCase {
} catch (InterruptedException e) {
}
// first try
assertEquals(1, listener.counter);
// first try.. should get 2 since there is no delay on the
// first redeliver..
assertEquals(2, listener.counter);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
// second try (redelivery after 1 sec)
assertEquals(2, listener.counter);
// 2nd redeliver (redelivery after 1 sec)
assertEquals(3, listener.counter);
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
}
// third try (redelivery after 2 seconds) - it should give up after that
assertEquals(3, listener.counter);
// 3rd redeliver (redelivery after 2 seconds) - it should give up after that
assertEquals(4, listener.counter);
// create new message
producer.send(createTextMessage(session));
@ -148,7 +150,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
// ignore
}
// it should be committed, so no redelivery
assertEquals(4, listener.counter);
assertEquals(5, listener.counter);
try {
Thread.sleep(1500);
@ -156,7 +158,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
// ignore
}
// no redelivery, counter should still be 4
assertEquals(4, listener.counter);
assertEquals(5, listener.counter);
session.close();
}
@ -185,7 +187,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
}
// first try
assertEquals(1, listener.counter);
assertEquals(2, listener.counter);
try {
Thread.sleep(1000);
@ -193,7 +195,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
}
// second try (redelivery after 1 sec)
assertEquals(2, listener.counter);
assertEquals(3, listener.counter);
try {
Thread.sleep(2000);
@ -201,7 +203,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
}
// third try (redelivery after 2 seconds) - it should give up after that
assertEquals(3, listener.counter);
assertEquals(4, listener.counter);
// create new message
producer.send(createTextMessage(session));
@ -213,7 +215,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
// ignore
}
// it should be committed, so no redelivery
assertEquals(4, listener.counter);
assertEquals(5, listener.counter);
try {
Thread.sleep(1500);
@ -221,7 +223,7 @@ public class MessageListenerRedeliveryTest extends TestCase {
// ignore
}
// no redelivery, counter should still be 4
assertEquals(4, listener.counter);
assertEquals(5, listener.counter);
session.close();
}

15
activemq-core/src/test/java/org/apache/activemq/RedeliveryPolicyTest.java
View File

@ -70,9 +70,15 @@ public class RedeliveryPolicyTest extends JmsTestSupport {
assertEquals("1st", m.getText());
session.rollback();
// Show re-delivery delay is incrementing.
// No delay on first rollback..
m = (TextMessage)consumer.receive(100);
assertNotNull(m);
session.rollback();
// Show subsequent re-delivery delay is incrementing.
m = (TextMessage)consumer.receive(100);
assertNull(m);
m = (TextMessage)consumer.receive(500);
assertNotNull(m);
assertEquals("1st", m.getText());
@ -117,7 +123,12 @@ public class RedeliveryPolicyTest extends JmsTestSupport {
assertEquals("1st", m.getText());
session.rollback();
// Show re-delivery delay is incrementing.
// No delay on first rollback..
m = (TextMessage)consumer.receive(100);
assertNotNull(m);
session.rollback();
// Show subsequent re-delivery delay is incrementing.
m = (TextMessage)consumer.receive(100);
assertNull(m);
m = (TextMessage)consumer.receive(500);

6
activemq-core/src/test/java/org/apache/activemq/test/rollback/RollbacksWhileConsumingLargeQueueTest.java
View File

@ -45,7 +45,7 @@ public class RollbacksWhileConsumingLargeQueueTest extends
private CountDownLatch latch;
private Throwable failure;
public void xtestWithReciever() throws Throwable {
public void testWithReciever() throws Throwable {
latch = new CountDownLatch(numberOfMessagesOnQueue);
Session session = connection.createSession(true, 0);
MessageConsumer consumer = session.createConsumer(destination);
@ -148,11 +148,11 @@ public class RollbacksWhileConsumingLargeQueueTest extends
int value = deliveryCounter.incrementAndGet();
if (value % 2 == 0) {
log.info("Rolling Back message: " + value + " id: " + msgId + ", content: " + msgText);
log.info("Rolling Back message: " + ackCounter.get() + " id: " + msgId + ", content: " + msgText);
throw new RuntimeException("Dummy exception on message: " + value);
}
log.info("Received message: " + value + " id: " + msgId + ", content: " + msgText);
log.info("Received message: " + ackCounter.get() + " id: " + msgId + ", content: " + msgText);
ackCounter.incrementAndGet();
latch.countDown();
}