/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.partition;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.instance.Node;
import com.hazelcast.internal.partition.InternalPartition;
import com.hazelcast.internal.partition.impl.InternalPartitionServiceImpl;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.partition.PartitionLostListenerStressTest.EventCollectingPartitionLostListener;
import com.hazelcast.spi.impl.NodeEngineImpl;
import com.hazelcast.spi.partition.IPartitionLostEvent;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.TestHazelcastInstanceFactory;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.io.IOException;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class PartitionLostListenerTest extends HazelcastTestSupport {
private TestHazelcastInstanceFactory factory;
private HazelcastInstance[] instances;
@Before
public void init() {
factory = createHazelcastInstanceFactory(3);
instances = new HazelcastInstance[2];
instances[0] = factory.newHazelcastInstance();
instances[1] = factory.newHazelcastInstance();
}
@After
public void after() {
factory.terminateAll();
}
@Test
public void test_partitionLostListenerInvoked() {
HazelcastInstance instance = instances[0];
final EventCollectingPartitionLostListener listener = new EventCollectingPartitionLostListener();
instance.getPartitionService().addPartitionLostListener(listener);
final IPartitionLostEvent internalEvent = new IPartitionLostEvent(1, 0, null);
NodeEngineImpl nodeEngine = getNode(instance).getNodeEngine();
InternalPartitionServiceImpl partitionService = (InternalPartitionServiceImpl) nodeEngine.getPartitionService();
partitionService.onPartitionLost(internalEvent);
assertEventEventually(listener, internalEvent);
}
@Test
public void test_allPartitionLostListenersInvoked() {
HazelcastInstance instance1 = instances[0];
HazelcastInstance instance2 = instances[1];
final EventCollectingPartitionLostListener listener1 = new EventCollectingPartitionLostListener();
final EventCollectingPartitionLostListener listener2 = new EventCollectingPartitionLostListener();
instance1.getPartitionService().addPartitionLostListener(listener1);
instance2.getPartitionService().addPartitionLostListener(listener2);
final IPartitionLostEvent internalEvent = new IPartitionLostEvent(1, 0, null);
NodeEngineImpl nodeEngine = getNode(instance1).getNodeEngine();
InternalPartitionServiceImpl partitionService = (InternalPartitionServiceImpl) nodeEngine.getPartitionService();
partitionService.onPartitionLost(internalEvent);
assertEventEventually(listener1, internalEvent);
assertEventEventually(listener2, internalEvent);
}
@Test
public void test_partitionLostListenerInvoked_whenNodeCrashed() {
HazelcastInstance survivingInstance = instances[0];
HazelcastInstance terminatingInstance = instances[1];
warmUpPartitions(instances);
waitAllForSafeState(instances);
final EventCollectingPartitionLostListener listener = new EventCollectingPartitionLostListener();
survivingInstance.getPartitionService().addPartitionLostListener(listener);
Node survivingNode = getNode(survivingInstance);
final Address survivingAddress = survivingNode.getThisAddress();
final Set<Integer> survivingPartitionIds = new HashSet<Integer>();
for (InternalPartition partition : survivingNode.getPartitionService().getInternalPartitions()) {
if (survivingAddress.equals(partition.getReplicaAddress(0))) {
survivingPartitionIds.add(partition.getPartitionId());
}
}
terminatingInstance.getLifecycleService().terminate();
waitAllForSafeState(survivingInstance);
assertTrueEventually(new AssertTask() {
@Override
public void run()
throws Exception {
List<PartitionLostEvent> events = listener.getEvents();
assertFalse(events.isEmpty());
for (PartitionLostEvent event : events) {
assertEquals(survivingAddress, event.getEventSource());
assertFalse(survivingPartitionIds.contains(event.getPartitionId()));
assertEquals(0, event.getLostBackupCount());
}
}
});
}
@Test
public void test_partitionLostListenerInvoked_whenAllPartitionReplicasCrashed() {
HazelcastInstance lite = factory.newHazelcastInstance(new Config().setLiteMember(true));
warmUpPartitions(instances);
warmUpPartitions(lite);
waitAllForSafeState(instances);
waitInstanceForSafeState(lite);
final EventCollectingPartitionLostListener listener = new EventCollectingPartitionLostListener();
lite.getPartitionService().addPartitionLostListener(listener);
instances[0].getLifecycleService().terminate();
instances[1].getLifecycleService().terminate();
assertTrueEventually(new AssertTask() {
@Override
public void run()
throws Exception {
List<PartitionLostEvent> events = listener.getEvents();
assertFalse(events.isEmpty());
}
});
}
@Test
public void test_internalPartitionLostEvent_serialization() throws IOException {
Address address = new Address();
IPartitionLostEvent internalEvent = new IPartitionLostEvent(1, 2, address);
ObjectDataOutput output = mock(ObjectDataOutput.class);
internalEvent.writeData(output);
verify(output).writeInt(1);
verify(output).writeInt(2);
}
@Test
public void test_internalPartitionLostEvent_deserialization() throws IOException {
IPartitionLostEvent internalEvent = new IPartitionLostEvent();
ObjectDataInput input = mock(ObjectDataInput.class);
when(input.readInt()).thenReturn(1, 2);
internalEvent.readData(input);
assertEquals(1, internalEvent.getPartitionId());
assertEquals(2, internalEvent.getLostReplicaIndex());
}
@Test
public void test_internalPartitionLostEvent_toString() {
assertNotNull(new IPartitionLostEvent().toString());
}
private void assertEventEventually(final EventCollectingPartitionLostListener listener, final IPartitionLostEvent internalEvent) {
assertTrueEventually(new AssertTask() {
@Override
public void run()
throws Exception {
List<PartitionLostEvent> events = listener.getEvents();
assertEquals(1, events.size());
PartitionLostEvent event = events.get(0);
assertEquals(internalEvent.getPartitionId(), event.getPartitionId());
assertEquals(internalEvent.getLostReplicaIndex(), event.getLostBackupCount());
}
});
}
}