https://issues.apache.org/activemq/browse/AMQ-2983 - sticky kahadb log files concurrent tx

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1027863 13f79535-47bb-0310-9956-ffa450edef68

activemq-core/src/main/java/org/apache/activemq/broker/region/Queue.java

@@ -793,11 +793,8 @@ public class Queue extends BaseDestination implements Task, UsageListener {
                 ack.setLastMessageId(node.getMessageId());
                 ack.setMessageCount(1);
             }
-            if (context.isInTransaction()) {
-                store.removeMessage(context, ack);
-            } else {
-                store.removeAsyncMessage(context, ack);
-            }
+
+            store.removeAsyncMessage(context, ack);
         }
     }
 

activemq-core/src/test/java/org/apache/activemq/bugs/AMQ2983Test.java

@@ -0,0 +1,162 @@
+/**
+ * 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.bugs;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import javax.jms.BytesMessage;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.DeliveryMode;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.Session;
+
+import org.apache.activemq.ActiveMQConnectionFactory;
+import org.apache.activemq.broker.BrokerService;
+import org.apache.activemq.store.kahadb.KahaDBStore;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class AMQ2983Test {
+
+    private static final int MAX_CONSUMER = 10;
+
+    private static final int MAX_MESSAGES = 2000;
+
+    private static final String QUEUE_NAME = "test.queue";
+
+    private BrokerService broker;
+
+    private final CountDownLatch messageCountDown = new CountDownLatch(MAX_MESSAGES);
+
+    private CleanableKahaDBStore kahaDB;
+
+    private static class CleanableKahaDBStore extends KahaDBStore {
+        // make checkpoint cleanup accessible
+        public void forceCleanup() throws IOException {
+            checkpointCleanup(true);
+        }
+
+        public int getFileMapSize() throws IOException {
+            // ensure save memory publishing, use the right lock
+            indexLock.readLock().lock();
+            try {
+                return getJournal().getFileMap().size();
+            } finally {
+                indexLock.readLock().unlock();
+            }
+        }
+    }
+
+    private class ConsumerThread extends Thread {
+
+        @Override
+        public void run() {
+            try {
+                ConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost");
+                Connection connection = factory.createConnection();
+                connection.start();
+                Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
+                MessageConsumer consumer = session.createConsumer(session.createQueue(QUEUE_NAME));
+                do {
+                    Message message = consumer.receive(200);
+                    if (message != null) {
+                        session.commit();
+                        messageCountDown.countDown();
+                    }
+                } while (messageCountDown.getCount() != 0);
+                consumer.close();
+                session.close();
+                connection.close();
+            } catch (Exception e) {
+                Assert.fail(e.getMessage());
+            }
+        }
+    }
+
+    @Before
+    public void setup() throws Exception {
+
+        broker = new BrokerService();
+        broker.setDeleteAllMessagesOnStartup(true);
+        broker.setPersistent(true);
+
+        kahaDB = new CleanableKahaDBStore();
+        kahaDB.setJournalMaxFileLength(256 * 1024);
+        broker.setPersistenceAdapter(kahaDB);
+
+        broker.start();
+        broker.waitUntilStarted();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        broker.stop();
+    }
+
+    @Test
+    public void testNoStickyKahaDbLogFilesOnConcurrentTransactionalConsumer() throws Exception {
+
+        List<Thread> consumerThreads = new ArrayList<Thread>();
+        for (int i = 0; i < MAX_CONSUMER; i++) {
+            ConsumerThread thread = new ConsumerThread();
+            thread.start();
+            consumerThreads.add(thread);
+        }
+        sendMessages();
+
+        boolean allMessagesReceived = messageCountDown.await(60, TimeUnit.SECONDS);
+        assertTrue(allMessagesReceived);
+
+        for (Thread thread : consumerThreads) {
+            thread.join(TimeUnit.MILLISECONDS.convert(60, TimeUnit.SECONDS));
+            assertFalse(thread.isAlive());
+        }
+        kahaDB.forceCleanup();
+        assertEquals("Expect only one active KahaDB log file after cleanup", 1, kahaDB.getFileMapSize());
+    }
+
+    private void sendMessages() throws Exception {
+        ConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost");
+        Connection connection = factory.createConnection();
+        connection.start();
+        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+        MessageProducer producer = session.createProducer(session.createQueue(QUEUE_NAME));
+        producer.setDeliveryMode(DeliveryMode.PERSISTENT);
+        for (int i = 0; i < MAX_MESSAGES; i++) {
+            BytesMessage message = session.createBytesMessage();
+            message.writeBytes(new byte[200]);
+            producer.send(message);
+        }
+        producer.close();
+        session.close();
+        connection.close();
+    }
+
+}