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* Licensed to the Apache Software Foundation (ASF) under one
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* 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.
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package org.apache.flink.runtime.jobmanager;
import static org.apache.flink.runtime.jobgraph.JobManagerTestUtils.startJobManager;
import static org.apache.flink.runtime.jobgraph.JobManagerTestUtils.waitForTaskThreadsToBeTerminated;
import static org.junit.Assert.*;
import org.apache.flink.runtime.client.AbstractJobResult;
import org.apache.flink.runtime.client.JobSubmissionResult;
import org.apache.flink.runtime.execution.ExecutionState;
import org.apache.flink.runtime.executiongraph.ExecutionGraph;
import org.apache.flink.runtime.executiongraph.ExecutionVertex;
import org.apache.flink.runtime.instance.LocalInstanceManager;
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.jobmanager.scheduler.SlotSharingGroup;
import org.apache.flink.runtime.jobmanager.tasks.BlockingReceiver;
import org.apache.flink.runtime.jobmanager.tasks.Sender;
import org.apache.flink.runtime.taskmanager.TaskManager;
import org.junit.Test;
public class TaskManagerFailsWithSlotSharingITCase {
@Test
public void testExecutionWithFailingTaskManager() {
final int NUM_TASKS = 20;
try {
final AbstractJobVertex sender = new AbstractJobVertex("Sender");
final AbstractJobVertex receiver = new AbstractJobVertex("Receiver");
sender.setInvokableClass(Sender.class);
receiver.setInvokableClass(BlockingReceiver.class);
sender.setParallelism(NUM_TASKS);
receiver.setParallelism(NUM_TASKS);
receiver.connectNewDataSetAsInput(sender, DistributionPattern.POINTWISE);
SlotSharingGroup sharingGroup = new SlotSharingGroup();
sender.setSlotSharingGroup(sharingGroup);
receiver.setSlotSharingGroup(sharingGroup);
final JobGraph jobGraph = new JobGraph("Pointwise Job", sender, receiver);
final JobManager jm = startJobManager(2, NUM_TASKS / 2);
final TaskManager tm1 = ((LocalInstanceManager) jm.getInstanceManager()).getTaskManagers()[0];
final TaskManager tm2 = ((LocalInstanceManager) jm.getInstanceManager()).getTaskManagers()[1];
final GlobalBufferPool bp1 = tm1.getChannelManager().getGlobalBufferPool();
final GlobalBufferPool bp2 = tm2.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());
ExecutionGraph eg = jm.getCurrentJobs().get(jobGraph.getJobID());
// wait until everyone has settled in
long deadline = System.currentTimeMillis() + 2000;
while (System.currentTimeMillis() < deadline) {
boolean allrunning = true;
for (ExecutionVertex v : eg.getJobVertex(receiver.getID()).getTaskVertices()) {
if (v.getCurrentExecutionAttempt().getState() != ExecutionState.RUNNING) {
allrunning = false;
break;
}
}
if (allrunning) {
break;
}
Thread.sleep(200);
}
// kill one task manager
TaskManager tm = ((LocalInstanceManager) jm.getInstanceManager()).getTaskManagers()[0];
tm.shutdown();
eg.waitForJobEnd();
// make sure that in any case, the network buffers are all returned
waitForTaskThreadsToBeTerminated();
assertTrue(bp1.isDestroyed() || bp1.numBuffers() == bp1.numAvailableBuffers());
assertTrue(bp2.isDestroyed() || bp2.numBuffers() == bp2.numAvailableBuffers());
}
finally {
jm.shutdown();
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
}