/*
* Copyright (c) 2008-2013, 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.spi.impl;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.core.IQueue;
import com.hazelcast.executor.impl.DistributedExecutorService;
import com.hazelcast.instance.HazelcastInstanceImpl;
import com.hazelcast.instance.HazelcastInstanceProxy;
import com.hazelcast.instance.MemberImpl;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.DataSerializable;
import com.hazelcast.spi.InvocationBuilder;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.OperationService;
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.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.*;
@RunWith(HazelcastParallelClassRunner.class)
@Category(QuickTest.class)
public class BasicOperationServiceTest extends HazelcastTestSupport {
//there was a memory leak caused by the invocation not releasing the backup registration when there is a timeout.
@Test
public void testTimeoutSingleMember() throws InterruptedException {
HazelcastInstance hz = createHazelcastInstance();
final IQueue<Object> q = hz.getQueue("queue");
for (int k = 0; k < 1000; k++) {
Object response = q.poll(1, TimeUnit.MILLISECONDS);
assertNull(response);
}
assertNoLitterInOpService(hz);
}
//there was a memory leak caused by the invocation not releasing the backup registration when there is a timeout.
@Test
public void testTimeoutWithMultiMemberCluster() throws InterruptedException {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
HazelcastInstance hz1 = factory.newHazelcastInstance();
HazelcastInstance hz2 = factory.newHazelcastInstance();
final IQueue<Object> q = hz1.getQueue("queue");
for (int k = 0; k < 1000; k++) {
Object response = q.poll(1, TimeUnit.MILLISECONDS);
assertNull(response);
}
assertNoLitterInOpService(hz1);
assertNoLitterInOpService(hz2);
}
//there was a memory leak caused by the invocation not releasing the backup registration
// when Future.get() is not called.
@Test
public void testAsyncOpsSingleMember() {
HazelcastInstance hz = createHazelcastInstance();
final IMap<Object, Object> map = hz.getMap("test");
final int count = 1000;
for (int i = 0; i < count; i++) {
map.putAsync(i, i);
}
assertSizeEventually(count, map);
assertNoLitterInOpService(hz);
}
//there was a memory leak caused by the invocation not releasing the backup registration
// when Future.get() is not called.
@Test
public void testAsyncOpsMultiMember() throws InterruptedException {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
HazelcastInstance hz = factory.newHazelcastInstance();
HazelcastInstance hz2 = factory.newHazelcastInstance();
warmUpPartitions(hz2, hz);
final IMap<Object, Object> map = hz.getMap("test");
final IMap<Object, Object> map2 = hz2.getMap("test");
final int count = 2000;
for (int i = 0; i < count; i++) {
if (i % 2 == 0) {
map.putAsync(i, i);
} else {
map2.putAsync(i, i);
}
}
assertSizeEventually(count, map);
assertSizeEventually(count, map2);
assertNoLitterInOpService(hz);
assertNoLitterInOpService(hz2);
}
@Test(expected = ExecutionException.class)
public void testPropagateSerializationErrorOnResponseToCallerGithubIssue2559()
throws Exception {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
HazelcastInstance hz1 = factory.newHazelcastInstance();
HazelcastInstance hz2 = factory.newHazelcastInstance();
Field original = HazelcastInstanceProxy.class.getDeclaredField("original");
original.setAccessible(true);
HazelcastInstanceImpl impl = (HazelcastInstanceImpl) original.get(hz1);
OperationService operationService = impl.node.nodeEngine.getOperationService();
Address address = ((MemberImpl) hz2.getCluster().getLocalMember()).getAddress();
Operation operation = new GithubIssue2559Operation();
String serviceName = DistributedExecutorService.SERVICE_NAME;
InvocationBuilder invocationBuilder = operationService.createInvocationBuilder(serviceName, operation, address);
invocationBuilder.invoke().get();
}
public static class GithubIssue2559Operation
extends Operation {
private GithubIssue2559Value value;
@Override
public void beforeRun()
throws Exception {
}
@Override
public void run()
throws Exception {
value = new GithubIssue2559Value();
value.foo = 10;
}
@Override
public void afterRun()
throws Exception {
}
@Override
public boolean returnsResponse() {
return true;
}
@Override
public Object getResponse() {
return value;
}
@Override
protected void writeInternal(ObjectDataOutput out)
throws IOException {
}
@Override
protected void readInternal(ObjectDataInput in)
throws IOException {
}
}
public static class GithubIssue2559Value
implements DataSerializable {
private int foo;
@Override
public void writeData(ObjectDataOutput out)
throws IOException {
throw new RuntimeException("BAM!");
}
@Override
public void readData(ObjectDataInput in)
throws IOException {
foo = in.readInt();
}
}
private void assertNoLitterInOpService(HazelcastInstance hz) {
final BasicOperationService operationService = (BasicOperationService) getNode(hz).nodeEngine.getOperationService();
//we need to do this with an assertTrueEventually because it can happen that system calls are being send
//and this leads to the maps not being empty. But eventually they will be empty at some moment in time.
assertTrueEventually(new AssertTask() {
@Override
public void run() {
assertEquals("invocations should be empty", 0, operationService.invocations.size());
}
});
}
}