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Posted to commits@activemq.apache.org by gt...@apache.org on 2016/04/05 14:31:42 UTC
activemq git commit: https://issues.apache.org/jira/browse/AMQ-6215 -
support 0 maxBrowsePageSize and maxExpirePageSize such that lazyDispatch
ensures highest priority messages is available to a pull consumer
Repository: activemq
Updated Branches:
refs/heads/master 666029e02 -> a3a8c1c52
https://issues.apache.org/jira/browse/AMQ-6215 - support 0 maxBrowsePageSize and maxExpirePageSize such that lazyDispatch ensures highest priority messages is available to a pull consumer
Project: http://git-wip-us.apache.org/repos/asf/activemq/repo
Commit: http://git-wip-us.apache.org/repos/asf/activemq/commit/a3a8c1c5
Tree: http://git-wip-us.apache.org/repos/asf/activemq/tree/a3a8c1c5
Diff: http://git-wip-us.apache.org/repos/asf/activemq/diff/a3a8c1c5
Branch: refs/heads/master
Commit: a3a8c1c5256aa8ea1067afe3e1586832e5aa1821
Parents: 666029e
Author: gtully <ga...@gmail.com>
Authored: Tue Apr 5 13:22:23 2016 +0100
Committer: gtully <ga...@gmail.com>
Committed: Tue Apr 5 13:23:06 2016 +0100
----------------------------------------------------------------------
.../activemq/broker/region/BaseDestination.java | 2 +-
.../apache/activemq/broker/region/Queue.java | 83 ++--
...eueZeroPrefetchLazyDispatchPriorityTest.java | 393 +++++++++++++++++++
3 files changed, 439 insertions(+), 39 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/activemq/blob/a3a8c1c5/activemq-broker/src/main/java/org/apache/activemq/broker/region/BaseDestination.java
----------------------------------------------------------------------
diff --git a/activemq-broker/src/main/java/org/apache/activemq/broker/region/BaseDestination.java b/activemq-broker/src/main/java/org/apache/activemq/broker/region/BaseDestination.java
index 5ae2d28..75f2ee0 100755
--- a/activemq-broker/src/main/java/org/apache/activemq/broker/region/BaseDestination.java
+++ b/activemq-broker/src/main/java/org/apache/activemq/broker/region/BaseDestination.java
@@ -316,7 +316,7 @@ public abstract class BaseDestination implements Destination {
@Override
public int getMaxBrowsePageSize() {
- return this.maxBrowsePageSize > 0 ? this.maxBrowsePageSize : getMaxPageSize();
+ return this.maxBrowsePageSize;
}
@Override
http://git-wip-us.apache.org/repos/asf/activemq/blob/a3a8c1c5/activemq-broker/src/main/java/org/apache/activemq/broker/region/Queue.java
----------------------------------------------------------------------
diff --git a/activemq-broker/src/main/java/org/apache/activemq/broker/region/Queue.java b/activemq-broker/src/main/java/org/apache/activemq/broker/region/Queue.java
index 84597b1..f5cd80f 100755
--- a/activemq-broker/src/main/java/org/apache/activemq/broker/region/Queue.java
+++ b/activemq-broker/src/main/java/org/apache/activemq/broker/region/Queue.java
@@ -1137,17 +1137,17 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
final ConnectionContext connectionContext = createConnectionContext();
try {
int maxPageInAttempts = 1;
- messagesLock.readLock().lock();
- try {
- maxPageInAttempts += (messages.size() / getMaxPageSize());
- } finally {
- messagesLock.readLock().unlock();
+ if (max > 0) {
+ messagesLock.readLock().lock();
+ try {
+ maxPageInAttempts += (messages.size() / max);
+ } finally {
+ messagesLock.readLock().unlock();
+ }
+ while (shouldPageInMoreForBrowse(max) && maxPageInAttempts-- > 0) {
+ pageInMessages(!memoryUsage.isFull(110), max);
+ }
}
-
- while (shouldPageInMoreForBrowse(max) && maxPageInAttempts-- > 0) {
- pageInMessages(!memoryUsage.isFull(110));
- };
-
doBrowseList(browseList, max, dispatchPendingList, pagedInPendingDispatchLock, connectionContext, "redeliveredWaitingDispatch+pagedInPendingDispatch");
doBrowseList(browseList, max, pagedInMessages, pagedInMessagesLock, connectionContext, "pagedInMessages");
@@ -1255,7 +1255,7 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
List<MessageReference> list = null;
long originalMessageCount = this.destinationStatistics.getMessages().getCount();
do {
- doPageIn(true, false); // signal no expiry processing needed.
+ doPageIn(true, false, getMaxPageSize()); // signal no expiry processing needed.
pagedInMessagesLock.readLock().lock();
try {
list = new ArrayList<MessageReference>(pagedInMessages.values());
@@ -1623,7 +1623,7 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
if (pageInMoreMessages || hasBrowsers || !dispatchPendingList.hasRedeliveries()) {
try {
- pageInMessages(hasBrowsers);
+ pageInMessages(hasBrowsers && getMaxBrowsePageSize() > 0, getMaxPageSize());
} catch (Throwable e) {
LOG.error("Failed to page in more queue messages ", e);
}
@@ -1889,11 +1889,11 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
}
private void doPageIn(boolean force) throws Exception {
- doPageIn(force, true);
+ doPageIn(force, true, getMaxPageSize());
}
- private void doPageIn(boolean force, boolean processExpired) throws Exception {
- PendingList newlyPaged = doPageInForDispatch(force, processExpired);
+ private void doPageIn(boolean force, boolean processExpired, int maxPageSize) throws Exception {
+ PendingList newlyPaged = doPageInForDispatch(force, processExpired, maxPageSize);
pagedInPendingDispatchLock.writeLock().lock();
try {
if (dispatchPendingList.isEmpty()) {
@@ -1911,11 +1911,11 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
}
}
- private PendingList doPageInForDispatch(boolean force, boolean processExpired) throws Exception {
+ private PendingList doPageInForDispatch(boolean force, boolean processExpired, int maxPageSize) throws Exception {
List<QueueMessageReference> result = null;
PendingList resultList = null;
- int toPageIn = Math.min(getMaxPageSize(), messages.size());
+ int toPageIn = Math.min(maxPageSize, messages.size());
int pagedInPendingSize = 0;
pagedInPendingDispatchLock.readLock().lock();
try {
@@ -1923,24 +1923,29 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
} finally {
pagedInPendingDispatchLock.readLock().unlock();
}
-
- LOG.debug("{} toPageIn: {}, Inflight: {}, pagedInMessages.size {}, pagedInPendingDispatch.size {}, enqueueCount: {}, dequeueCount: {}, memUsage:{}",
- new Object[]{
- this,
- toPageIn,
- destinationStatistics.getInflight().getCount(),
- pagedInMessages.size(),
- pagedInPendingSize,
- destinationStatistics.getEnqueues().getCount(),
- destinationStatistics.getDequeues().getCount(),
- getMemoryUsage().getUsage()
- });
if (isLazyDispatch() && !force) {
// Only page in the minimum number of messages which can be
// dispatched immediately.
toPageIn = Math.min(getConsumerMessageCountBeforeFull(), toPageIn);
}
- if (toPageIn > 0 && (force || (!consumers.isEmpty() && pagedInPendingSize < getMaxPageSize()))) {
+
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("{} toPageIn: {}, force:{}, Inflight: {}, pagedInMessages.size {}, pagedInPendingDispatch.size {}, enqueueCount: {}, dequeueCount: {}, memUsage:{}, maxPageSize:{}",
+ new Object[]{
+ this,
+ toPageIn,
+ force,
+ destinationStatistics.getInflight().getCount(),
+ pagedInMessages.size(),
+ pagedInPendingSize,
+ destinationStatistics.getEnqueues().getCount(),
+ destinationStatistics.getDequeues().getCount(),
+ getMemoryUsage().getUsage(),
+ maxPageSize
+ });
+ }
+
+ if (toPageIn > 0 && (force || (haveRealConsumer() && pagedInPendingSize < maxPageSize))) {
int count = 0;
result = new ArrayList<QueueMessageReference>(toPageIn);
messagesLock.writeLock().lock();
@@ -1948,7 +1953,7 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
try {
messages.setMaxBatchSize(toPageIn);
messages.reset();
- while (messages.hasNext() && count < toPageIn) {
+ while (count < toPageIn && messages.hasNext()) {
MessageReference node = messages.next();
messages.remove();
@@ -2007,6 +2012,10 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
return resultList;
}
+ private final boolean haveRealConsumer() {
+ return consumers.size() - browserDispatches.size() > 0;
+ }
+
private void doDispatch(PendingList list) throws Exception {
boolean doWakeUp = false;
@@ -2167,8 +2176,8 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
subs.getConsumerInfo().incrementAssignedGroupCount(destination);
}
- protected void pageInMessages(boolean force) throws Exception {
- doDispatch(doPageInForDispatch(force, true));
+ protected void pageInMessages(boolean force, int maxPageSize) throws Exception {
+ doDispatch(doPageInForDispatch(force, true, maxPageSize));
}
private void addToConsumerList(Subscription sub) {
@@ -2186,20 +2195,18 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
private int getConsumerMessageCountBeforeFull() throws Exception {
int total = 0;
- boolean zeroPrefetch = false;
consumersLock.readLock().lock();
try {
for (Subscription s : consumers) {
- zeroPrefetch |= s.getPrefetchSize() == 0;
+ if (s.isBrowser()) {
+ continue;
+ }
int countBeforeFull = s.countBeforeFull();
total += countBeforeFull;
}
} finally {
consumersLock.readLock().unlock();
}
- if (total == 0 && zeroPrefetch) {
- total = 1;
- }
return total;
}
http://git-wip-us.apache.org/repos/asf/activemq/blob/a3a8c1c5/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/QueueZeroPrefetchLazyDispatchPriorityTest.java
----------------------------------------------------------------------
diff --git a/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/QueueZeroPrefetchLazyDispatchPriorityTest.java b/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/QueueZeroPrefetchLazyDispatchPriorityTest.java
new file mode 100644
index 0000000..cff3bee
--- /dev/null
+++ b/activemq-unit-tests/src/test/java/org/apache/activemq/usecases/QueueZeroPrefetchLazyDispatchPriorityTest.java
@@ -0,0 +1,393 @@
+/**
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.usecases;
+
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+import javax.jms.BytesMessage;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.QueueBrowser;
+import javax.jms.Session;
+import junit.framework.TestCase;
+import org.apache.activemq.ActiveMQConnectionFactory;
+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.command.ActiveMQQueue;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class QueueZeroPrefetchLazyDispatchPriorityTest extends TestCase {
+
+ static final Logger LOG = LoggerFactory.getLogger(QueueZeroPrefetchLazyDispatchPriorityTest.class);
+ private BrokerService broker;
+ public static final byte[] PAYLOAD = new byte[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+
+
+ protected void setUp() throws Exception {
+ broker = createBroker();
+ broker.start();
+ broker.waitUntilStarted();
+ }
+
+ protected void tearDown() throws Exception {
+
+ if (broker != null) {
+ broker.stop();
+ }
+ }
+
+
+ public void testPriorityMessages() throws Exception {
+
+
+ for (int i = 0; i < 5; i++) {
+
+
+ //send 4 message priority MEDIUM
+ produceMessages(4, 4, "TestQ");
+
+
+ //send 1 message priority HIGH
+ produceMessages(1, 5, "TestQ");
+
+
+ LOG.info("On iteration " + i);
+
+
+ Thread.sleep(500);
+
+
+ // consume messages
+ ArrayList<Message> consumeList = consumeMessages("TestQ");
+ LOG.info("Consumed list " + consumeList.size());
+
+
+ // compare lists
+ assertEquals("message 1 should be priority high", 5, consumeList.get(0).getJMSPriority());
+ assertEquals("message 2 should be priority medium", 4, consumeList.get(1).getJMSPriority());
+ assertEquals("message 3 should be priority medium", 4, consumeList.get(2).getJMSPriority());
+ assertEquals("message 4 should be priority medium", 4, consumeList.get(3).getJMSPriority());
+ assertEquals("message 5 should be priority medium", 4, consumeList.get(4).getJMSPriority());
+ }
+
+ }
+
+
+ public void testPriorityMessagesMoreThanPageSize() throws Exception {
+
+
+ final int numToSend = 450;
+ for (int i = 0; i < 5; i++) {
+
+ produceMessages(numToSend - 1, 4, "TestQ");
+
+ // ensure we get expiry processing
+ Thread.sleep(700);
+
+
+ //send 1 message priority HIGH
+ produceMessages(1, 5, "TestQ");
+
+ Thread.sleep(500);
+
+ LOG.info("On iteration " + i);
+
+ // consume messages
+ ArrayList<Message> consumeList = consumeMessages("TestQ");
+ LOG.info("Consumed list " + consumeList.size());
+
+
+ // compare lists
+ assertEquals("message 1 should be priority high", 5, consumeList.get(0).getJMSPriority());
+ for (int j = 1; j < (numToSend - 1); j++) {
+ assertEquals("message " + j + " should be priority medium", 4, consumeList.get(j).getJMSPriority());
+ }
+ }
+
+ }
+
+
+ public void testLongLivedPriorityConsumer() throws Exception {
+
+ final int numToSend = 150;
+
+ ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getTransportConnectorByScheme("tcp").getPublishableConnectString());
+ Connection connection = connectionFactory.createConnection();
+ try {
+ Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+ MessageConsumer consumer = session.createConsumer(new ActiveMQQueue("TestQ"));
+ connection.start();
+
+ for (int i = 0; i < 5; i++) {
+
+ produceMessages(numToSend - 1, 4, "TestQ");
+
+ //send 1 message priority HIGH
+ produceMessages(1, 5, "TestQ");
+
+ Message message = consumer.receive(4000);
+
+ assertEquals("message should be priority high", 5, message.getJMSPriority());
+
+ }
+ } finally {
+ connection.close();
+ }
+
+ ArrayList<Message> consumeList = consumeMessages("TestQ");
+ LOG.info("Consumed list " + consumeList.size());
+
+ for (Message message : consumeList) {
+ assertEquals("should be priority medium", 4, message.getJMSPriority());
+ }
+
+ }
+
+
+ public void testPriorityMessagesWithJmsBrowser() throws Exception {
+
+
+ final int numToSend = 250;
+ for (int i = 0; i < 5; i++) {
+
+ produceMessages(numToSend - 1, 4, "TestQ");
+
+ ArrayList<Message> browsed = browseMessages("TestQ");
+
+ LOG.info("Browsed: " + browsed.size());
+
+ //send 1 message priority HIGH
+ produceMessages(1, 5, "TestQ");
+
+ Thread.sleep(500);
+
+ LOG.info("On iteration " + i);
+
+ Message message = consumeOneMessage("TestQ");
+ assertNotNull(message);
+ assertEquals(5, message.getJMSPriority());
+
+ // consume messages
+ ArrayList<Message> consumeList = consumeMessages("TestQ");
+ LOG.info("Consumed list " + consumeList.size());
+
+
+ // compare lists
+ //assertEquals("Iteration: " + i +", message 1 should be priority high", 5, consumeList.get(0).getJMSPriority());
+ for (int j = 1; j < (numToSend - 1); j++) {
+ assertEquals("Iteration: " + i + ", message " + j + " should be priority medium", 4, consumeList.get(j).getJMSPriority());
+ }
+ }
+
+ }
+
+ public void testJmsBrowserGetsPagedIn() throws Exception {
+
+
+ final int numToSend = 10;
+ for (int i = 0; i < 10; i++) {
+
+ produceMessages(numToSend, 4, "TestQ");
+
+ ArrayList<Message> browsed = browseMessages("TestQ");
+
+ LOG.info("Browsed: " + browsed.size());
+
+ assertEquals(0, browsed.size());
+
+ Message message = consumeOneMessage("TestQ", Session.CLIENT_ACKNOWLEDGE);
+ assertNotNull(message);
+
+ browsed = browseMessages("TestQ");
+
+ LOG.info("Browsed: " + browsed.size());
+
+ assertEquals("see only the paged in for pull", 1, browsed.size());
+
+ // consume messages
+ ArrayList<Message> consumeList = consumeMessages("TestQ");
+ LOG.info("Consumed list " + consumeList.size());
+ assertEquals(numToSend, consumeList.size());
+
+ }
+
+ }
+
+
+ private void produceMessages(int numberOfMessages, int priority, String queueName) throws Exception {
+
+ ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getTransportConnectorByScheme("tcp").getPublishableConnectString());
+ connectionFactory.setConnectionIDPrefix("pri-" + priority);
+ Connection connection = connectionFactory.createConnection();
+ try {
+ Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+ MessageProducer producer = session.createProducer(new ActiveMQQueue(queueName));
+ connection.start();
+
+
+ for (int i = 0; i < numberOfMessages; i++) {
+ BytesMessage m = session.createBytesMessage();
+ m.writeBytes(PAYLOAD);
+ m.setJMSPriority(priority);
+ producer.send(m, Message.DEFAULT_DELIVERY_MODE, m.getJMSPriority(), Message.DEFAULT_TIME_TO_LIVE);
+ }
+
+ } finally {
+
+ if (connection != null) {
+ connection.close();
+ }
+ }
+ }
+
+
+ private ArrayList<Message> consumeMessages(String queueName) throws Exception {
+
+ ArrayList<Message> returnedMessages = new ArrayList<Message>();
+
+ ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getTransportConnectorByScheme("tcp").getPublishableConnectString());
+ Connection connection = connectionFactory.createConnection();
+ try {
+ Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+ MessageConsumer consumer = session.createConsumer(new ActiveMQQueue(queueName));
+ connection.start();
+ boolean finished = false;
+
+ while (!finished) {
+
+ Message message = consumer.receive(1000);
+ if (message == null) {
+ finished = true;
+ }
+
+ if (message != null) {
+ returnedMessages.add(message);
+ }
+
+ }
+
+ consumer.close();
+ return returnedMessages;
+
+ } finally {
+
+ if (connection != null) {
+ connection.close();
+ }
+ }
+
+
+ }
+
+ private Message consumeOneMessage(String queueName) throws Exception {
+ return consumeOneMessage(queueName, Session.AUTO_ACKNOWLEDGE);
+ }
+
+ private Message consumeOneMessage(String queueName, int ackMode) throws Exception {
+
+ ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getTransportConnectorByScheme("tcp").getPublishableConnectString());
+ Connection connection = connectionFactory.createConnection();
+ try {
+ Session session = connection.createSession(false, ackMode);
+ MessageConsumer consumer = session.createConsumer(new ActiveMQQueue(queueName));
+ connection.start();
+
+ return consumer.receive(1000);
+
+ } finally {
+
+ if (connection != null) {
+ connection.close();
+ }
+ }
+
+ }
+
+ private ArrayList<Message> browseMessages(String queueName) throws Exception {
+
+ ArrayList<Message> returnedMessages = new ArrayList<Message>();
+
+ ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(broker.getTransportConnectorByScheme("tcp").getPublishableConnectString());
+ Connection connection = connectionFactory.createConnection();
+ try {
+ Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+ QueueBrowser consumer = session.createBrowser(new ActiveMQQueue(queueName));
+ connection.start();
+
+ Enumeration enumeration = consumer.getEnumeration();
+ while (enumeration.hasMoreElements()) {
+
+ Message message = (Message) enumeration.nextElement();
+ returnedMessages.add(message);
+
+ }
+
+ return returnedMessages;
+
+ } finally {
+
+ if (connection != null) {
+ connection.close();
+ }
+ }
+
+
+ }
+
+ private BrokerService createBroker() throws Exception {
+ BrokerService broker = new BrokerService();
+ broker.setDeleteAllMessagesOnStartup(true);
+
+ //add the policy entries
+ PolicyMap policyMap = new PolicyMap();
+ List<PolicyEntry> entries = new ArrayList<PolicyEntry>();
+ PolicyEntry pe = new PolicyEntry();
+
+ pe.setPrioritizedMessages(true);
+
+ pe.setExpireMessagesPeriod(500);
+
+ pe.setMaxPageSize(100);
+ pe.setMaxExpirePageSize(0);
+ pe.setMaxBrowsePageSize(0);
+
+ pe.setQueuePrefetch(0);
+ pe.setLazyDispatch(true);
+
+ pe.setOptimizedDispatch(true);
+
+ pe.setUseCache(false);
+
+ pe.setQueue(">");
+ entries.add(pe);
+ policyMap.setPolicyEntries(entries);
+ broker.setDestinationPolicy(policyMap);
+
+
+ broker.addConnector("tcp://0.0.0.0:0");
+ return broker;
+ }
+
+
+}
\ No newline at end of file