/*
* 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.flink.runtime.jobmanager;
import static org.apache.flink.runtime.jobgraph.JobManagerTestUtils.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import org.apache.flink.runtime.client.AbstractJobResult;
import org.apache.flink.runtime.client.JobSubmissionResult;
import org.apache.flink.runtime.executiongraph.ExecutionGraph;
import org.apache.flink.runtime.instance.LocalInstanceManager;
import org.apache.flink.runtime.io.network.api.RecordReader;
import org.apache.flink.runtime.io.network.api.RecordWriter;
import org.apache.flink.runtime.io.network.bufferprovider.GlobalBufferPool;
import org.apache.flink.runtime.jobgraph.AbstractJobVertex;
import org.apache.flink.runtime.jobgraph.DistributionPattern;
import org.apache.flink.runtime.jobgraph.JobGraph;
import org.apache.flink.runtime.jobgraph.JobStatus;
import org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable;
import org.apache.flink.runtime.jobmanager.tasks.AgnosticBinaryReceiver;
import org.apache.flink.runtime.jobmanager.tasks.AgnosticReceiver;
import org.apache.flink.runtime.jobmanager.tasks.BlockingNoOpInvokable;
import org.apache.flink.runtime.jobmanager.tasks.NoOpInvokable;
import org.apache.flink.runtime.jobmanager.tasks.Receiver;
import org.apache.flink.runtime.jobmanager.tasks.Sender;
import org.apache.flink.runtime.types.IntegerRecord;
import org.junit.Test;
/**
* This test is intended to cover the basic functionality of the {@link JobManager}.
*/
public class JobManagerITCase {
@Test
public void testScheduleNotEnoughSlots() {
try {
final AbstractJobVertex vertex = new AbstractJobVertex("Test Vertex");
vertex.setParallelism(2);
vertex.setInvokableClass(BlockingNoOpInvokable.class);
final JobGraph jobGraph = new JobGraph("Test Job", vertex);
final JobManager jm = startJobManager(1);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
assertEquals(1, jm.getTotalNumberOfRegisteredSlots());
JobSubmissionResult result = jm.submitJob(jobGraph);
assertEquals(AbstractJobResult.ReturnCode.ERROR, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
long deadline = System.currentTimeMillis() + 60*1000;
boolean success = false;
while (System.currentTimeMillis() < deadline) {
JobStatus state = eg.getState();
if (state == JobStatus.FINISHED) {
success = true;
break;
}
else if (state == JobStatus.FAILED || state == JobStatus.CANCELED) {
break;
}
else {
Thread.sleep(200);
}
}
assertTrue("The job did not finish successfully.", success);
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testSingleVertexJobImmediately() {
final int NUM_TASKS = 133;
try {
final AbstractJobVertex vertex = new AbstractJobVertex("Test Vertex");
vertex.setParallelism(NUM_TASKS);
vertex.setInvokableClass(NoOpInvokable.class);
final JobGraph jobGraph = new JobGraph("Test Job", vertex);
final JobManager jm = startJobManager(NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
assertEquals(NUM_TASKS, jm.getTotalNumberOfRegisteredSlots());
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
long deadline = System.currentTimeMillis() + 60*1000;
boolean success = false;
while (System.currentTimeMillis() < deadline) {
JobStatus state = eg.getState();
if (state == JobStatus.FINISHED) {
success = true;
break;
}
else if (state == JobStatus.FAILED || state == JobStatus.CANCELED) {
break;
}
else {
Thread.sleep(200);
}
}
assertTrue("The job did not finish successfully.", success);
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testSingleVertexJobQueued() {
final int NUM_TASKS = 111;
try {
final AbstractJobVertex vertex = new AbstractJobVertex("Test Vertex");
vertex.setParallelism(NUM_TASKS);
vertex.setInvokableClass(NoOpInvokable.class);
final JobGraph jobGraph = new JobGraph("Test Job", vertex);
jobGraph.setAllowQueuedScheduling(true);
final JobManager jm = startJobManager(10);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FINISHED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testForwardJob() {
final int NUM_TASKS = 31;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(Sender.class);
receiver.setInvokableClass(Receiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(2 * NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FINISHED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testBipartiteJob() {
final int NUM_TASKS = 31;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(Sender.class);
receiver.setInvokableClass(AgnosticReceiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Bipartite Job", sender, receiver);
final JobManager jm = startJobManager(2 * NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FINISHED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testTwoInputJobFailingEdgeMismatch() {
final int NUM_TASKS = 11;
try {
final AbstractJobVertex sender1 = new AbstractJobVertex("Sender1");
final AbstractJobVertex sender2 = new AbstractJobVertex("Sender2");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender1.setInvokableClass(Sender.class);
sender2.setInvokableClass(Sender.class);
receiver.setInvokableClass(AgnosticReceiver.class);
sender1.setParallelism(NUM_TASKS);
sender2.setParallelism(2*NUM_TASKS);
receiver.setParallelism(3*NUM_TASKS);
receiver.connectNewDataSetAsInput(sender1, DistributionPattern.POINTWISE);
receiver.connectNewDataSetAsInput(sender2, DistributionPattern.BIPARTITE);
final JobGraph jobGraph = new JobGraph("Bipartite Job", sender1, receiver, sender2);
final JobManager jm = startJobManager(6*NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FAILED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testTwoInputJob() {
final int NUM_TASKS = 11;
try {
final AbstractJobVertex sender1 = new AbstractJobVertex("Sender1");
final AbstractJobVertex sender2 = new AbstractJobVertex("Sender2");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender1.setInvokableClass(Sender.class);
sender2.setInvokableClass(Sender.class);
receiver.setInvokableClass(AgnosticBinaryReceiver.class);
sender1.setParallelism(NUM_TASKS);
sender2.setParallelism(2*NUM_TASKS);
receiver.setParallelism(3*NUM_TASKS);
receiver.connectNewDataSetAsInput(sender1, DistributionPattern.POINTWISE);
receiver.connectNewDataSetAsInput(sender2, DistributionPattern.BIPARTITE);
final JobGraph jobGraph = new JobGraph("Bipartite Job", sender1, receiver, sender2);
JobManager jm = startJobManager(6 * NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FINISHED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testJobFailingSender() {
final int NUM_TASKS = 100;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(ExceptionSender.class);
receiver.setInvokableClass(Receiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
assertEquals(NUM_TASKS, jm.getTotalNumberOfRegisteredSlots());
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FAILED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testJobSometimesFailingSender() {
final int NUM_TASKS = 100;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(SometimesExceptionSender.class);
receiver.setInvokableClass(Receiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
assertEquals(NUM_TASKS, jm.getTotalNumberOfRegisteredSlots());
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FAILED, eg.getState());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testJobFailingReceiver() {
final int NUM_TASKS = 200;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(Sender.class);
receiver.setInvokableClass(ExceptionReceiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(2 * NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FAILED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
/**
* Test failure in instantiation, where all fail by themselves
*/
@Test
public void testJobFailingInstantiation() {
final int NUM_TASKS = 200;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(InstantiationErrorSender.class);
receiver.setInvokableClass(Receiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
assertEquals(NUM_TASKS, jm.getTotalNumberOfRegisteredSlots());
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FAILED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
/**
* Test failure in instantiation, where some have to be canceled (not all fail by themselves)
*/
@Test
public void testJobFailingSomeInstantiations() {
final int NUM_TASKS = 200;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(SometimesInstantiationErrorSender.class);
receiver.setInvokableClass(Receiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(2*NUM_TASKS);
final GlobalBufferPool bp = ((LocalInstanceManager) jm.getInstanceManager())
.getTaskManagers()[0].getChannelManager().getGlobalBufferPool();
try {
assertEquals(2*NUM_TASKS, jm.getNumberOfSlotsAvailableToScheduler());
JobSubmissionResult result = jm.submitJob(jobGraph);
if (result.getReturnCode() != AbstractJobResult.ReturnCode.SUCCESS) {
System.out.println(result.getDescription());
}
assertEquals(AbstractJobResult.ReturnCode.SUCCESS, result.getReturnCode());
// monitor the execution
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
if (eg != null) {
eg.waitForJobEnd();
assertEquals(JobStatus.FAILED, eg.getState());
// assertEquals(0, eg.getRegisteredExecutions().size());
}
else {
// already done, that was fast;
}
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertEquals(bp.numBuffers(), bp.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
// --------------------------------------------------------------------------------------------
// Simple test tasks
// --------------------------------------------------------------------------------------------
public static final class ExceptionSender extends AbstractInvokable {
private RecordWriter<IntegerRecord> writer;
@Override
public void registerInputOutput() {
writer = new RecordWriter<IntegerRecord>(this);
}
@Override
public void invoke() throws Exception {
writer.initializeSerializers();
throw new Exception("Test Exception");
}
}
public static final class ExceptionReceiver extends AbstractInvokable {
@Override
public void registerInputOutput() {
new RecordReader<IntegerRecord>(this, IntegerRecord.class);
}
@Override
public void invoke() throws Exception {
throw new Exception("Expected Test Exception");
}
}
public static final class SometimesExceptionSender extends AbstractInvokable {
private RecordWriter<IntegerRecord> writer;
@Override
public void registerInputOutput() {
writer = new RecordWriter<IntegerRecord>(this);
}
@Override
public void invoke() throws Exception {
writer.initializeSerializers();
if (Math.random() < 0.05) {
throw new Exception("Test Exception");
} else {
Object o = new Object();
synchronized (o) {
o.wait();
}
}
}
}
public static final class InstantiationErrorSender extends AbstractInvokable {
public InstantiationErrorSender() {
throw new RuntimeException("Test Exception in Constructior");
}
@Override
public void registerInputOutput() {}
@Override
public void invoke() {}
}
public static final class SometimesInstantiationErrorSender extends AbstractInvokable {
public SometimesInstantiationErrorSender() {
if (Math.random() < 0.05) {
throw new RuntimeException("Test Exception in Constructior");
}
}
@Override
public void registerInputOutput() {
new RecordWriter<IntegerRecord>(this);
}
@Override
public void invoke() throws Exception {
Object o = new Object();
synchronized (o) {
o.wait();
}
}
}
}