/**
* 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.store.kahadb;
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.apache.activemq.store.kahadb.disk.journal.DataFile;
import org.apache.activemq.store.kahadb.disk.journal.Location;
import org.apache.activemq.store.kahadb.disk.page.Page;
import org.apache.activemq.store.kahadb.disk.page.PageFile;
import org.apache.activemq.store.kahadb.disk.page.Transaction;
import org.junit.After;
import org.junit.Ignore;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;
import java.io.IOException;
import java.util.Collection;
import static org.apache.activemq.store.kahadb.JournalCorruptionEofIndexRecoveryTest.drain;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class JournalMetaDataCheckpointTest {
private static final Logger LOG = LoggerFactory.getLogger(JournalMetaDataCheckpointTest.class);
private final String KAHADB_DIRECTORY = "target/activemq-data/";
private final String payload = new String(new byte[1024]);
private BrokerService broker = null;
private final Destination destination = new ActiveMQQueue("Test");
private KahaDBPersistenceAdapter adapter;
protected void startBroker() throws Exception {
doStartBroker(true);
}
protected void restartBroker() throws Exception {
if (broker != null) {
broker.stop();
broker.waitUntilStopped();
}
doStartBroker(false);
}
private void doStartBroker(boolean delete) throws Exception {
doCreateBroker(delete);
LOG.info("Starting broker..");
broker.start();
}
private void doCreateBroker(boolean delete) throws Exception {
broker = new BrokerService();
broker.setDeleteAllMessagesOnStartup(delete);
broker.setPersistent(true);
broker.setUseJmx(true);
broker.setDataDirectory(KAHADB_DIRECTORY);
PolicyMap policyMap = new PolicyMap();
PolicyEntry policyEntry = new PolicyEntry();
policyEntry.setUseCache(false);
policyMap.setDefaultEntry(policyEntry);
broker.setDestinationPolicy(policyMap);
configurePersistence(broker);
}
protected void configurePersistence(BrokerService brokerService) throws Exception {
adapter = (KahaDBPersistenceAdapter) brokerService.getPersistenceAdapter();
// ensure there are a bunch of data files but multiple entries in each
adapter.setJournalMaxFileLength(1024 * 20);
// manual cleanup
adapter.setCheckpointInterval(0);
adapter.setCleanupInterval(0);
adapter.setCheckForCorruptJournalFiles(true);
}
@After
public void tearDown() throws Exception {
if (broker != null) {
broker.stop();
broker.waitUntilStopped();
}
}
@Test
public void testRecoveryOnDeleteFailureMetaDataOk() throws Exception {
startBroker();
int sent = produceMessagesToConsumeMultipleDataFiles(50);
int numFilesAfterSend = getNumberOfJournalFiles();
LOG.info("Sent {}, Num journal files: {} ", sent, numFilesAfterSend);
assertTrue("more than x files: " + numFilesAfterSend, numFilesAfterSend > 4);
int received = tryConsume(destination, sent/2);
assertEquals("all message received", sent/2, received);
int numFilesAfterRestart = getNumberOfJournalFiles();
LOG.info("Num journal files before gc: " + numFilesAfterRestart);
// force gc
((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getStore().checkpoint(true);
int numFilesAfterGC = getNumberOfJournalFiles();
assertEquals("all message received", sent/2, received);
LOG.info("Num journal files after restart nd gc: " + numFilesAfterGC);
assertTrue("Gc has happened", numFilesAfterGC < numFilesAfterRestart);
// verify metadata is correct on disk
final MessageDatabase.Metadata[] fromDiskMetaData = new MessageDatabase.Metadata[1];
final KahaDBStore messageStore = ((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getStore();
// need to avoid cache and in-progress writes of existing pageFile
PageFile fromDiskPageFile = new PageFile(messageStore.getIndexDirectory(), "db");
fromDiskPageFile.setEnablePageCaching(false);
fromDiskPageFile.setEnableRecoveryFile(false);
fromDiskPageFile.load();
fromDiskPageFile.tx().execute(new Transaction.Closure<IOException>() {
@Override
public void execute(Transaction tx) throws IOException {
Page<MessageDatabase.Metadata> page = tx.load(0, messageStore.metadataMarshaller);
fromDiskMetaData[0] = page.get();
}
});
assertEquals("location is uptodate", messageStore.getMetadata().ackMessageFileMapLocation, fromDiskMetaData[0].ackMessageFileMapLocation);
}
@Ignore("needs work")
public void testAckMessageFileMapSyncOnModOnly() throws Exception {
startBroker();
// force gc
((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getStore().checkpoint(true);
KahaDBStore messageStore = ((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getStore();
Location ackMessageFileModLoc = messageStore.getMetadata().ackMessageFileMapLocation;
// force gc
((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getStore().checkpoint(true);
assertEquals("location is not changed on no modification", ackMessageFileModLoc, messageStore.getMetadata().ackMessageFileMapLocation);
}
private int getNumberOfJournalFiles() throws IOException {
Collection<DataFile> files = ((KahaDBPersistenceAdapter) broker.getPersistenceAdapter()).getStore().getJournal().getFileMap().values();
int reality = 0;
for (DataFile file : files) {
if (file != null) {
reality++;
}
}
return reality;
}
private int produceMessages(Destination destination, int numToSend) throws Exception {
int sent = 0;
Connection connection = new ActiveMQConnectionFactory(broker.getVmConnectorURI()).createConnection();
connection.start();
try {
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(destination);
for (int i = 0; i < numToSend; i++) {
producer.send(createMessage(session, i));
sent++;
}
} finally {
connection.close();
}
return sent;
}
private int tryConsume(Destination destination, int numToGet) throws Exception {
ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(broker.getVmConnectorURI());
return drain(cf, destination, numToGet);
}
private int produceMessagesToConsumeMultipleDataFiles(int numToSend) throws Exception {
return produceMessages(destination, numToSend);
}
private Message createMessage(Session session, int i) throws Exception {
return session.createTextMessage(payload + "::" + i);
}
}