| /** |
| * 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; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import javax.jms.Connection; |
| import javax.jms.ConnectionFactory; |
| 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.Topic; |
| |
| import org.apache.activemq.advisory.AdvisorySupport; |
| import org.apache.activemq.broker.BrokerService; |
| import org.apache.activemq.broker.region.policy.ConstantPendingMessageLimitStrategy; |
| import org.apache.activemq.broker.region.policy.FilePendingSubscriberMessageStoragePolicy; |
| import org.apache.activemq.broker.region.policy.OldestMessageEvictionStrategy; |
| import org.apache.activemq.broker.region.policy.PendingSubscriberMessageStoragePolicy; |
| import org.apache.activemq.broker.region.policy.PolicyEntry; |
| import org.apache.activemq.broker.region.policy.PolicyMap; |
| import org.apache.activemq.broker.region.policy.VMPendingSubscriberMessageStoragePolicy; |
| import org.apache.activemq.command.ActiveMQDestination; |
| import org.apache.activemq.command.ActiveMQMessage; |
| import org.apache.activemq.command.ActiveMQTopic; |
| import org.apache.activemq.util.Wait; |
| import org.junit.After; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class MessageEvictionTest { |
| static final Logger LOG = LoggerFactory.getLogger(MessageEvictionTest.class); |
| private BrokerService broker; |
| private ConnectionFactory connectionFactory; |
| Connection connection; |
| private Session session; |
| private Topic destination; |
| private final String destinationName = "verifyEvection"; |
| protected int numMessages = 2000; |
| protected String payload = new String(new byte[1024*2]); |
| |
| public void setUp(PendingSubscriberMessageStoragePolicy pendingSubscriberPolicy) throws Exception { |
| broker = createBroker(pendingSubscriberPolicy); |
| broker.start(); |
| connectionFactory = createConnectionFactory(); |
| connection = connectionFactory.createConnection(); |
| connection.start(); |
| session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE); |
| destination = session.createTopic(destinationName); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| connection.stop(); |
| broker.stop(); |
| } |
| |
| @Test |
| public void testMessageEvictionMemoryUsageFileCursor() throws Exception { |
| setUp(new FilePendingSubscriberMessageStoragePolicy()); |
| doTestMessageEvictionMemoryUsage(); |
| } |
| |
| @Test |
| public void testMessageEvictionMemoryUsageVmCursor() throws Exception { |
| setUp(new VMPendingSubscriberMessageStoragePolicy()); |
| doTestMessageEvictionMemoryUsage(); |
| } |
| |
| @Test |
| public void testMessageEvictionDiscardedAdvisory() throws Exception { |
| setUp(new VMPendingSubscriberMessageStoragePolicy()); |
| |
| ExecutorService executor = Executors.newSingleThreadExecutor(); |
| final CountDownLatch consumerRegistered = new CountDownLatch(1); |
| final CountDownLatch gotAdvisory = new CountDownLatch(1); |
| final CountDownLatch advisoryIsGood = new CountDownLatch(1); |
| |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| ActiveMQTopic discardedAdvisoryDestination = |
| AdvisorySupport.getMessageDiscardedAdvisoryTopic(destination); |
| // use separate session rather than asyncDispatch on consumer session |
| // as we want consumer session to block |
| Session advisorySession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| final MessageConsumer consumer = advisorySession.createConsumer(discardedAdvisoryDestination); |
| consumer.setMessageListener(new MessageListener() { |
| int advisoriesReceived = 0; |
| @Override |
| public void onMessage(Message message) { |
| try { |
| LOG.info("advisory:" + message); |
| ActiveMQMessage activeMQMessage = (ActiveMQMessage) message; |
| assertNotNull(activeMQMessage.getStringProperty(AdvisorySupport.MSG_PROPERTY_CONSUMER_ID)); |
| assertEquals(++advisoriesReceived, activeMQMessage.getIntProperty(AdvisorySupport.MSG_PROPERTY_DISCARDED_COUNT)); |
| message.acknowledge(); |
| advisoryIsGood.countDown(); |
| } catch (JMSException e) { |
| e.printStackTrace(); |
| fail(e.toString()); |
| } finally { |
| gotAdvisory.countDown(); |
| } |
| } |
| }); |
| consumerRegistered.countDown(); |
| gotAdvisory.await(120, TimeUnit.SECONDS); |
| consumer.close(); |
| advisorySession.close(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.toString()); |
| } |
| } |
| }); |
| assertTrue("we have an advisory consumer", consumerRegistered.await(60, TimeUnit.SECONDS)); |
| doTestMessageEvictionMemoryUsage(); |
| assertTrue("got an advisory for discarded", gotAdvisory.await(0, TimeUnit.SECONDS)); |
| assertTrue("advisory is good",advisoryIsGood.await(0, TimeUnit.SECONDS)); |
| } |
| |
| public void doTestMessageEvictionMemoryUsage() throws Exception { |
| |
| ExecutorService executor = Executors.newCachedThreadPool(); |
| final CountDownLatch doAck = new CountDownLatch(1); |
| final CountDownLatch ackDone = new CountDownLatch(1); |
| final CountDownLatch consumerRegistered = new CountDownLatch(1); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| final MessageConsumer consumer = session.createConsumer(destination); |
| consumer.setMessageListener(new MessageListener() { |
| @Override |
| public void onMessage(Message message) { |
| try { |
| // very slow, only ack once |
| doAck.await(60, TimeUnit.SECONDS); |
| LOG.info("acking: " + message.getJMSMessageID()); |
| message.acknowledge(); |
| ackDone.countDown(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.toString()); |
| } finally { |
| consumerRegistered.countDown(); |
| ackDone.countDown(); |
| } |
| } |
| }); |
| consumerRegistered.countDown(); |
| ackDone.await(60, TimeUnit.SECONDS); |
| consumer.close(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.toString()); |
| } |
| } |
| }); |
| |
| assertTrue("we have a consumer", consumerRegistered.await(10, TimeUnit.SECONDS)); |
| |
| final AtomicInteger sent = new AtomicInteger(0); |
| final CountDownLatch sendDone = new CountDownLatch(1); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| MessageProducer producer; |
| try { |
| producer = session.createProducer(destination); |
| for (int i=0; i< numMessages; i++) { |
| producer.send(session.createTextMessage(payload)); |
| sent.incrementAndGet(); |
| } |
| producer.close(); |
| sendDone.countDown(); |
| } catch (Exception e) { |
| sendDone.countDown(); |
| e.printStackTrace(); |
| fail(e.toString()); |
| } |
| } |
| }); |
| |
| assertTrue("messages sending done", sendDone.await(180, TimeUnit.SECONDS)); |
| assertEquals("all message were sent", numMessages, sent.get()); |
| |
| doAck.countDown(); |
| executor.shutdown(); |
| executor.awaitTermination(30, TimeUnit.SECONDS); |
| |
| assertTrue("usage goes to 0 once consumer goes away", Wait.waitFor(new Wait.Condition() { |
| @Override |
| public boolean isSatisified() throws Exception { |
| return 0 == TestSupport.getDestination(broker, |
| ActiveMQDestination.transform(destination)).getMemoryUsage().getPercentUsage(); |
| } |
| })); |
| } |
| |
| BrokerService createBroker(PendingSubscriberMessageStoragePolicy pendingSubscriberPolicy) throws Exception { |
| BrokerService brokerService = new BrokerService(); |
| brokerService.addConnector("tcp://localhost:0"); |
| brokerService.setUseJmx(false); |
| brokerService.setDeleteAllMessagesOnStartup(true); |
| |
| // spooling to disk early so topic memory limit is not reached |
| brokerService.getSystemUsage().getMemoryUsage().setLimit(500*1024); |
| |
| final List<PolicyEntry> policyEntries = new ArrayList<PolicyEntry>(); |
| final PolicyEntry entry = new PolicyEntry(); |
| entry.setTopic(">"); |
| |
| entry.setAdvisoryForDiscardingMessages(true); |
| |
| // so consumer does not get over run while blocked limit the prefetch |
| entry.setTopicPrefetch(50); |
| |
| |
| entry.setPendingSubscriberPolicy(pendingSubscriberPolicy); |
| |
| // limit the number of outstanding messages, large enough to use the file store |
| // or small enough not to blow memory limit |
| int pendingMessageLimit = 50; |
| if (pendingSubscriberPolicy instanceof FilePendingSubscriberMessageStoragePolicy) { |
| pendingMessageLimit = 500; |
| } |
| ConstantPendingMessageLimitStrategy pendingMessageLimitStrategy = new ConstantPendingMessageLimitStrategy(); |
| pendingMessageLimitStrategy.setLimit(pendingMessageLimit); |
| entry.setPendingMessageLimitStrategy(pendingMessageLimitStrategy); |
| |
| // to keep the limit in check and up to date rather than just the first few, evict some |
| OldestMessageEvictionStrategy messageEvictionStrategy = new OldestMessageEvictionStrategy(); |
| // whether to check expiry before eviction, default limit 1000 is fine as no ttl set in this test |
| //messageEvictionStrategy.setEvictExpiredMessagesHighWatermark(1000); |
| entry.setMessageEvictionStrategy(messageEvictionStrategy); |
| |
| // let evicted messaged disappear |
| entry.setDeadLetterStrategy(null); |
| policyEntries.add(entry); |
| |
| final PolicyMap policyMap = new PolicyMap(); |
| policyMap.setPolicyEntries(policyEntries); |
| brokerService.setDestinationPolicy(policyMap); |
| |
| return brokerService; |
| } |
| |
| ConnectionFactory createConnectionFactory() throws Exception { |
| String url = broker.getTransportConnectors().get(0).getServer().getConnectURI().toString(); |
| ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(url); |
| factory.setWatchTopicAdvisories(false); |
| return factory; |
| } |
| |
| } |