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https://issues.apache.org/jira/browse/AMQ-6498 

Include the already received backlog when deciding to grant additional
credit to avoid excessive backlogs of messages during producer flow
control.
This commit is contained in:
Timothy Bish 2016-11-04 11:55:12 -04:00
parent a5aa300258
commit 7cf7fba7aa
3 changed files with 342 additions and 43 deletions
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87
activemq-amqp/src/main/java/org/apache/activemq/transport/amqp/protocol/AmqpReceiver.java
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@ -1,4 +1,4 @@
/**
/*
* 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.
@ -70,6 +70,8 @@ public class AmqpReceiver extends AmqpAbstractReceiver {
private InboundTransformer inboundTransformer;
private int sendsInFlight;
/**
* Create a new instance of an AmqpReceiver
*
@ -204,58 +206,57 @@ public class AmqpReceiver extends AmqpAbstractReceiver {
}
message.onSend();
if (!delivery.remotelySettled()) {
sendToActiveMQ(message, new ResponseHandler() {
@Override
public void onResponse(AmqpProtocolConverter converter, Response response) throws IOException {
if (response.isException()) {
ExceptionResponse error = (ExceptionResponse) response;
Rejected rejected = new Rejected();
ErrorCondition condition = new ErrorCondition();
sendsInFlight++;
if (error.getException() instanceof SecurityException) {
condition.setCondition(AmqpError.UNAUTHORIZED_ACCESS);
} else if (error.getException() instanceof ResourceAllocationException) {
condition.setCondition(AmqpError.RESOURCE_LIMIT_EXCEEDED);
} else {
condition.setCondition(Symbol.valueOf("failed"));
}
sendToActiveMQ(message, createResponseHandler(delivery));
}
}
condition.setDescription(error.getException().getMessage());
rejected.setError(condition);
delivery.disposition(rejected);
private ResponseHandler createResponseHandler(final Delivery delivery) {
return new ResponseHandler() {
@Override
public void onResponse(AmqpProtocolConverter converter, Response response) throws IOException {
if (!delivery.remotelySettled()) {
if (response.isException()) {
ExceptionResponse error = (ExceptionResponse) response;
Rejected rejected = new Rejected();
ErrorCondition condition = new ErrorCondition();
if (error.getException() instanceof SecurityException) {
condition.setCondition(AmqpError.UNAUTHORIZED_ACCESS);
} else if (error.getException() instanceof ResourceAllocationException) {
condition.setCondition(AmqpError.RESOURCE_LIMIT_EXCEEDED);
} else {
if (getEndpoint().getCredit() <= (getConfiguredReceiverCredit() * .3)) {
LOG.debug("Sending more credit ({}) to producer: {}", getConfiguredReceiverCredit() - getEndpoint().getCredit(), getProducerId());
getEndpoint().flow(getConfiguredReceiverCredit() - getEndpoint().getCredit());
}
if (remoteState != null && remoteState instanceof TransactionalState) {
TransactionalState txAccepted = new TransactionalState();
txAccepted.setOutcome(Accepted.getInstance());
txAccepted.setTxnId(((TransactionalState) remoteState).getTxnId());
delivery.disposition(txAccepted);
} else {
delivery.disposition(Accepted.getInstance());
}
condition.setCondition(Symbol.valueOf("failed"));
}
delivery.settle();
session.pumpProtonToSocket();
condition.setDescription(error.getException().getMessage());
rejected.setError(condition);
delivery.disposition(rejected);
} else {
final DeliveryState remoteState = delivery.getRemoteState();
if (remoteState != null && remoteState instanceof TransactionalState) {
TransactionalState txAccepted = new TransactionalState();
txAccepted.setOutcome(Accepted.getInstance());
txAccepted.setTxnId(((TransactionalState) remoteState).getTxnId());
delivery.disposition(txAccepted);
} else {
delivery.disposition(Accepted.getInstance());
}
}
});
} else {
if (getEndpoint().getCredit() <= (getConfiguredReceiverCredit() * .3)) {
LOG.debug("Sending more credit ({}) to producer: {}", getConfiguredReceiverCredit() - getEndpoint().getCredit(), getProducerId());
getEndpoint().flow(getConfiguredReceiverCredit() - getEndpoint().getCredit());
session.pumpProtonToSocket();
}
if (getEndpoint().getCredit() + --sendsInFlight <= (getConfiguredReceiverCredit() * .3)) {
LOG.trace("Sending more credit ({}) to producer: {}", getConfiguredReceiverCredit() * .7, getProducerId());
getEndpoint().flow((int) (getConfiguredReceiverCredit() * .7));
}
delivery.settle();
sendToActiveMQ(message);
session.pumpProtonToSocket();
}
}
};
}
}

111
activemq-amqp/src/test/java/org/apache/activemq/transport/amqp/interop/AmqpFlowControlTest.java Normal file
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@ -0,0 +1,111 @@
/*
* 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 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.transport.amqp.interop;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.broker.region.policy.VMPendingQueueMessageStoragePolicy;
import org.apache.activemq.broker.region.policy.VMPendingSubscriberMessageStoragePolicy;
import org.apache.activemq.transport.amqp.client.AmqpClient;
import org.apache.activemq.transport.amqp.client.AmqpClientTestSupport;
import org.apache.activemq.transport.amqp.client.AmqpConnection;
import org.apache.activemq.transport.amqp.client.AmqpMessage;
import org.apache.activemq.transport.amqp.client.AmqpReceiver;
import org.apache.activemq.transport.amqp.client.AmqpSender;
import org.apache.activemq.transport.amqp.client.AmqpSession;
import org.apache.activemq.util.Wait;
import org.junit.Test;
public class AmqpFlowControlTest extends AmqpClientTestSupport {
@Override
protected void performAdditionalConfiguration(BrokerService brokerService) throws Exception {
// Setup a destination policy where it takes only 1 message at a time.
PolicyMap policyMap = new PolicyMap();
PolicyEntry policy = new PolicyEntry();
policy.setMemoryLimit(1);
policy.setPendingSubscriberPolicy(new VMPendingSubscriberMessageStoragePolicy());
policy.setPendingQueuePolicy(new VMPendingQueueMessageStoragePolicy());
policy.setProducerFlowControl(true);
policyMap.setDefaultEntry(policy);
brokerService.setDestinationPolicy(policyMap);
}
@Test(timeout = 60000)
public void testCreditNotGrantedUntilBacklogClears() throws Exception {
final int MSG_COUNT = 1000;
AmqpClient client = createAmqpClient();
AmqpConnection connection = trackConnection(client.connect());
AmqpSession session = connection.createSession();
AmqpReceiver receiver = session.createReceiver("queue://" + getTestName());
AmqpSender sender = session.createSender("queue://" + getTestName(), true);
for (int i = 1; i <= MSG_COUNT; ++i) {
AmqpMessage message = new AmqpMessage();
message.setText("Test-Message: " + i);
sender.send(message);
if (i % 1000 == 0) {
LOG.info("Sent message: {}", i);
}
}
// Should only accept one message
final QueueViewMBean queue = getProxyToQueue(getTestName());
assertTrue("All messages should arrive", Wait.waitFor(new Wait.Condition() {
@Override
public boolean isSatisified() throws Exception {
return queue.getQueueSize() == 1;
}
}));
assertEquals(0, sender.getEndpoint().getRemoteCredit());
receiver.flow(1);
AmqpMessage received = receiver.receive(5, TimeUnit.SECONDS);
assertNotNull(received);
received.accept();
// Should not grant any credit until backlog starts to clear
assertEquals(0, sender.getEndpoint().getRemoteCredit());
receiver.flow(MSG_COUNT - 1);
for (int i = 0; i < MSG_COUNT - 1; ++i) {
received = receiver.receive(5, TimeUnit.SECONDS);
assertNotNull(received);
received.accept();
}
// Should have been granted credit once backlog was cleared.
assertTrue(sender.getEndpoint().getRemoteCredit() > 0);
sender.close();
connection.close();
}
}

187
activemq-amqp/src/test/java/org/apache/activemq/transport/amqp/profile/JmsSendReceiveStressTest.java Normal file
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@ -0,0 +1,187 @@
/*
* 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 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.transport.amqp.profile;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.Vector;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import javax.jms.BytesMessage;
import javax.jms.DeliveryMode;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.broker.region.policy.VMPendingQueueMessageStoragePolicy;
import org.apache.activemq.transport.amqp.JMSClientTestSupport;
import org.apache.qpid.jms.JmsConnection;
import org.apache.qpid.jms.JmsConnectionFactory;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Ignore("Use for profiling and memory testing")
public class JmsSendReceiveStressTest extends JMSClientTestSupport {
private static final Logger LOG = LoggerFactory.getLogger(JmsSendReceiveStressTest.class);
public static final int PAYLOAD_SIZE = 64 * 1024;
private final byte[] payload = new byte[PAYLOAD_SIZE];
private final int parallelProducer = 1;
private final int parallelConsumer = 1;
private final Vector<Throwable> exceptions = new Vector<Throwable>();
private JmsConnectionFactory factory;
private final long NUM_SENDS = 1000000;
@Override
@Before
public void setUp() throws Exception {
super.setUp();
for (int i = 0; i < PAYLOAD_SIZE; ++i) {
payload[i] = (byte) (i % 255);
}
}
@Test
public void testProduceConsume() throws Exception {
factory = new JmsConnectionFactory(getAmqpURI(getAmqpConnectionURIOptions()));
factory.setForceAsyncAcks(true);
factory.setForceAsyncSend(false);
factory.setForceSyncSend(false);
final AtomicLong sharedSendCount = new AtomicLong(NUM_SENDS);
final AtomicLong sharedReceiveCount = new AtomicLong(NUM_SENDS);
Thread.sleep(2000);
long start = System.currentTimeMillis();
ExecutorService executorService = Executors.newFixedThreadPool(parallelConsumer + parallelProducer);
for (int i = 0; i < parallelConsumer; i++) {
executorService.execute(new Runnable() {
@Override
public void run() {
try {
consumeMessages(sharedReceiveCount);
} catch (Throwable e) {
exceptions.add(e);
}
}
});
}
for (int i = 0; i < parallelProducer; i++) {
executorService.execute(new Runnable() {
@Override
public void run() {
try {
publishMessages(sharedSendCount);
} catch (Throwable e) {
exceptions.add(e);
}
}
});
}
executorService.shutdown();
executorService.awaitTermination(30, TimeUnit.MINUTES);
assertTrue("Producers done in time", executorService.isTerminated());
assertTrue("No exceptions: " + exceptions, exceptions.isEmpty());
double duration = System.currentTimeMillis() - start;
LOG.info("Duration: " + duration + "ms");
LOG.info("Rate: " + (NUM_SENDS * 1000 / duration) + "m/s");
}
private void consumeMessages(AtomicLong count) throws Exception {
JmsConnection connection = (JmsConnection) factory.createConnection();
connection.start();
Session session = connection.createSession(false, ActiveMQSession.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageConsumer consumer = session.createConsumer(queue);
long v;
while ((v = count.decrementAndGet()) > 0) {
if ((count.get() % 10000) == 0) {
LOG.info("Received message: {}", NUM_SENDS - count.get());
}
assertNotNull("got message " + v, consumer.receive(15000));
}
LOG.info("Received message: {}", NUM_SENDS);
consumer.close();
}
private void publishMessages(AtomicLong count) throws Exception {
JmsConnection connection = (JmsConnection) factory.createConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(getDestinationName());
MessageProducer producer = session.createProducer(queue);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
while (count.getAndDecrement() > 0) {
BytesMessage message = session.createBytesMessage();
message.writeBytes(payload);
producer.send(message);
if ((count.get() % 10000) == 0) {
LOG.info("Sent message: {}", NUM_SENDS - count.get());
}
}
producer.close();
connection.close();
}
@Override
protected void performAdditionalConfiguration(BrokerService brokerService) throws Exception {
PolicyEntry policyEntry = new PolicyEntry();
policyEntry.setPendingQueuePolicy(new VMPendingQueueMessageStoragePolicy());
policyEntry.setPrioritizedMessages(false);
policyEntry.setExpireMessagesPeriod(0);
policyEntry.setEnableAudit(false);
policyEntry.setOptimizedDispatch(true);
policyEntry.setQueuePrefetch(1); // ensure no contention on add with
// matched producer/consumer
PolicyMap policyMap = new PolicyMap();
policyMap.setDefaultEntry(policyEntry);
brokerService.setDestinationPolicy(policyMap);
}
@Override
protected String getAmqpTransformer() {
return "jms";
}
private String getAmqpConnectionURIOptions() {
return "jms.presettlePolicy.presettleAll=false";
}
}