/*
* 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.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.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.jobmanager.scheduler.SlotSharingGroup;
import org.apache.flink.runtime.jobmanager.tasks.Receiver;
import org.apache.flink.runtime.jobmanager.tasks.Sender;
import org.junit.Test;
public class CoLocationConstraintITCase {
/**
* This job runs in N slots with N senders and N receivers. Unless slot sharing is used, it cannot complete.
*/
@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);
SlotSharingGroup sharingGroup = new SlotSharingGroup(sender.getID(), receiver.getID());
sender.setSlotSharingGroup(sharingGroup);
receiver.setSlotSharingGroup(sharingGroup);
receiver.setStrictlyCoLocatedWith(sender);
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 {
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());
}
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());
}
}
}