/*
* 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.geode.internal.cache.ha;
import static org.apache.geode.distributed.ConfigurationProperties.*;
import static org.junit.Assert.*;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import org.apache.geode.test.junit.categories.ClientSubscriptionTest;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.apache.geode.cache.AttributesFactory;
import org.apache.geode.cache.Cache;
import org.apache.geode.cache.CacheException;
import org.apache.geode.cache.CacheFactory;
import org.apache.geode.cache.CacheListener;
import org.apache.geode.cache.DataPolicy;
import org.apache.geode.cache.EntryEvent;
import org.apache.geode.cache.InterestResultPolicy;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.RegionAttributes;
import org.apache.geode.cache.Scope;
import org.apache.geode.cache.util.CacheListenerAdapter;
import org.apache.geode.cache30.CacheSerializableRunnable;
import org.apache.geode.cache30.ClientServerTestCase;
import org.apache.geode.distributed.DistributedSystem;
import org.apache.geode.internal.AvailablePort;
import org.apache.geode.internal.cache.CacheServerImpl;
import org.apache.geode.test.dunit.Host;
import org.apache.geode.test.dunit.IgnoredException;
import org.apache.geode.test.dunit.NetworkUtils;
import org.apache.geode.test.dunit.VM;
import org.apache.geode.test.dunit.internal.JUnit4DistributedTestCase;
import org.apache.geode.test.junit.categories.DistributedTest;
/**
* This is the Dunit test to verify the duplicates after the fail over The test perorms following
* operations 1. Create 2 servers and 1 client 2. Perform put operations for knows set of keys
* directy from the server1. 3. Stop the server1 so that fail over happens 4. Validate the
* duplicates received by the client1
*/
@Category({DistributedTest.class, ClientSubscriptionTest.class})
public class HADuplicateDUnitTest extends JUnit4DistributedTestCase {
VM server1 = null;
VM server2 = null;
VM client1 = null;
VM client2 = null;
private static final String REGION_NAME = "HADuplicateDUnitTest_Region";
protected static Cache cache = null;
static boolean isEventDuplicate = true;
static CacheServerImpl server = null;
static final int NO_OF_PUTS = 100;
public static final Object dummyObj = "dummyObject";
static boolean waitFlag = true;
static int put_counter = 0;
static Map storeEvents = new HashMap();
@Override
public final void postSetUp() throws Exception {
final Host host = Host.getHost(0);
server1 = host.getVM(0);
server2 = host.getVM(1);
client1 = host.getVM(2);
client2 = host.getVM(3);
}
@Override
public final void preTearDown() throws Exception {
client1.invoke(() -> HADuplicateDUnitTest.closeCache());
// close server
server1.invoke(() -> HADuplicateDUnitTest.reSetQRMslow());
server1.invoke(() -> HADuplicateDUnitTest.closeCache());
server2.invoke(() -> HADuplicateDUnitTest.closeCache());
}
@Ignore("TODO")
@Test
public void testDuplicate() throws Exception {
createClientServerConfiguration();
server1.invoke(putForKnownKeys());
server1.invoke(stopServer());
// wait till all the duplicates are received by client
client1.invoke(new CacheSerializableRunnable("waitForPutToComplete") {
public void run2() throws CacheException {
synchronized (dummyObj) {
while (waitFlag) {
try {
dummyObj.wait();
} catch (InterruptedException e) {
fail("interrupted");
}
}
}
if (waitFlag)
fail("test failed");
}
});
// validate the duplicates received by client
client1.invoke(new CacheSerializableRunnable("validateDuplicates") {
public void run2() throws CacheException {
if (!isEventDuplicate)
fail(" Not all duplicates received");
}
});
server1.invoke(() -> HADuplicateDUnitTest.reSetQRMslow());
}
@Test
public void testSample() throws Exception {
IgnoredException.addIgnoredException("IOException");
IgnoredException.addIgnoredException("Connection reset");
createClientServerConfiguration();
server1.invoke(new CacheSerializableRunnable("putKey") {
public void run2() throws CacheException {
Region region = cache.getRegion(Region.SEPARATOR + REGION_NAME);
assertNotNull(region);
region.put("key1", "value1");
}
});
}
// function to perform put operations for the known set of keys.
private CacheSerializableRunnable putForKnownKeys() {
CacheSerializableRunnable putforknownkeys = new CacheSerializableRunnable("putforknownkeys") {
public void run2() throws CacheException {
Region region = cache.getRegion(Region.SEPARATOR + REGION_NAME);
assertNotNull(region);
for (int i = 0; i < NO_OF_PUTS; i++) {
region.put("key" + i, "value" + i);
}
}
};
return putforknownkeys;
}
// function to stop server so that the fail over happens
private CacheSerializableRunnable stopServer() {
CacheSerializableRunnable stopserver = new CacheSerializableRunnable("stopServer") {
public void run2() throws CacheException {
server.stop();
}
};
return stopserver;
}
// function to create 2servers and 1 clients
private void createClientServerConfiguration() {
int PORT1 =
((Integer) server1.invoke(() -> HADuplicateDUnitTest.createServerCache())).intValue();
server1.invoke(() -> HADuplicateDUnitTest.setQRMslow());
int PORT2 =
((Integer) server2.invoke(() -> HADuplicateDUnitTest.createServerCache())).intValue();
String hostname = NetworkUtils.getServerHostName(Host.getHost(0));
client1.invoke(() -> HADuplicateDUnitTest.createClientCache(hostname, new Integer(PORT1),
new Integer(PORT2)));
}
// function to set QRM slow
public static void setQRMslow() {
System.setProperty("QueueRemovalThreadWaitTime", "100000");
}
public static void reSetQRMslow() {
System.setProperty("QueueRemovalThreadWaitTime", "1000");
}
public static Integer createServerCache() throws Exception {
new HADuplicateDUnitTest().createCache(new Properties());
AttributesFactory factory = new AttributesFactory();
factory.setScope(Scope.DISTRIBUTED_ACK);
factory.setDataPolicy(DataPolicy.REPLICATE);
RegionAttributes attrs = factory.create();
cache.createRegion(REGION_NAME, attrs);
server = (CacheServerImpl) cache.addCacheServer();
assertNotNull(server);
int port = AvailablePort.getRandomAvailablePort(AvailablePort.SOCKET);
server.setPort(port);
server.setNotifyBySubscription(true);
server.start();
return new Integer(server.getPort());
}
private void createCache(Properties props) throws Exception {
DistributedSystem ds = getSystem(props);
assertNotNull(ds);
ds.disconnect();
ds = getSystem(props);
cache = CacheFactory.create(ds);
assertNotNull(cache);
}
public static void createClientCache(String hostName, Integer port1, Integer port2)
throws Exception {
int PORT1 = port1.intValue();
int PORT2 = port2.intValue();
Properties props = new Properties();
props.setProperty(MCAST_PORT, "0");
props.setProperty(LOCATORS, "");
new HADuplicateDUnitTest().createCache(props);
AttributesFactory factory = new AttributesFactory();
ClientServerTestCase.configureConnectionPool(factory, hostName, new int[] {PORT1, PORT2}, true,
-1, 2, null);
factory.setScope(Scope.DISTRIBUTED_ACK);
CacheListener clientListener = new HAValidateDuplicateListener();
factory.setCacheListener(clientListener);
RegionAttributes attrs = factory.create();
cache.createRegion(REGION_NAME, attrs);
Region region = cache.getRegion(Region.SEPARATOR + REGION_NAME);
assertNotNull(region);
region.registerInterest("ALL_KEYS", InterestResultPolicy.NONE);
}
public static void closeCache() {
if (cache != null && !cache.isClosed()) {
cache.close();
cache.getDistributedSystem().disconnect();
}
}
}
// TODO: move these classes to be inner static classes
// Listener class for the validation purpose
class HAValidateDuplicateListener extends CacheListenerAdapter {
public void afterCreate(EntryEvent event) {
System.out.println("After Create");
HADuplicateDUnitTest.storeEvents.put(event.getKey(), event.getNewValue());
}
public void afterUpdate(EntryEvent event) {
Object value = HADuplicateDUnitTest.storeEvents.get(event.getKey());
if (value == null)
HADuplicateDUnitTest.isEventDuplicate = false;
synchronized (HADuplicateDUnitTest.dummyObj) {
try {
HADuplicateDUnitTest.put_counter++;
if (HADuplicateDUnitTest.put_counter == HADuplicateDUnitTest.NO_OF_PUTS) {
HADuplicateDUnitTest.waitFlag = false;
HADuplicateDUnitTest.dummyObj.notifyAll();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}