/**
* 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.hadoop.yarn.server.resourcemanager;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import junit.framework.Assert;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.ContainerState;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.ResourceRequest;
import org.apache.hadoop.yarn.event.Dispatcher;
import org.apache.hadoop.yarn.event.DrainDispatcher;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEvent;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.junit.Test;
public class TestApplicationCleanup {
private static final Log LOG = LogFactory
.getLog(TestApplicationCleanup.class);
@Test
public void testAppCleanup() throws Exception {
Logger rootLogger = LogManager.getRootLogger();
rootLogger.setLevel(Level.DEBUG);
MockRM rm = new MockRM();
rm.start();
MockNM nm1 = rm.registerNode("127.0.0.1:1234", 5000);
RMApp app = rm.submitApp(2000);
//kick the scheduling
nm1.nodeHeartbeat(true);
RMAppAttempt attempt = app.getCurrentAppAttempt();
MockAM am = rm.sendAMLaunched(attempt.getAppAttemptId());
am.registerAppAttempt();
//request for containers
int request = 2;
am.allocate("127.0.0.1" , 1000, request,
new ArrayList<ContainerId>());
//kick the scheduler
nm1.nodeHeartbeat(true);
List<Container> conts = am.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
int contReceived = conts.size();
int waitCount = 0;
while (contReceived < request && waitCount++ < 200) {
LOG.info("Got " + contReceived + " containers. Waiting to get "
+ request);
Thread.sleep(100);
conts = am.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
contReceived += conts.size();
nm1.nodeHeartbeat(true);
}
Assert.assertEquals(request, contReceived);
am.unregisterAppAttempt();
NodeHeartbeatResponse resp = nm1.nodeHeartbeat(attempt.getAppAttemptId(), 1,
ContainerState.COMPLETE);
am.waitForState(RMAppAttemptState.FINISHED);
//currently only containers are cleaned via this
//AM container is cleaned via container launcher
resp = nm1.nodeHeartbeat(true);
List<ContainerId> contsToClean = resp.getContainersToCleanup();
List<ApplicationId> apps = resp.getApplicationsToCleanup();
int cleanedConts = contsToClean.size();
int cleanedApps = apps.size();
waitCount = 0;
while ((cleanedConts < 2 || cleanedApps < 1) && waitCount++ < 200) {
LOG.info("Waiting to get cleanup events.. cleanedConts: "
+ cleanedConts + " cleanedApps: " + cleanedApps);
Thread.sleep(100);
resp = nm1.nodeHeartbeat(true);
contsToClean = resp.getContainersToCleanup();
apps = resp.getApplicationsToCleanup();
cleanedConts += contsToClean.size();
cleanedApps += apps.size();
}
Assert.assertEquals(1, apps.size());
Assert.assertEquals(app.getApplicationId(), apps.get(0));
Assert.assertEquals(1, cleanedApps);
Assert.assertEquals(2, cleanedConts);
rm.stop();
}
@Test
public void testContainerCleanup() throws Exception {
Logger rootLogger = LogManager.getRootLogger();
rootLogger.setLevel(Level.DEBUG);
final DrainDispatcher dispatcher = new DrainDispatcher();
MockRM rm = new MockRM() {
@Override
protected EventHandler<SchedulerEvent> createSchedulerEventDispatcher() {
return new SchedulerEventDispatcher(this.scheduler) {
@Override
public void handle(SchedulerEvent event) {
scheduler.handle(event);
}
};
}
@Override
protected Dispatcher createDispatcher() {
return dispatcher;
}
};
rm.start();
MockNM nm1 = rm.registerNode("127.0.0.1:1234", 5000);
RMApp app = rm.submitApp(2000);
//kick the scheduling
nm1.nodeHeartbeat(true);
RMAppAttempt attempt = app.getCurrentAppAttempt();
MockAM am = rm.sendAMLaunched(attempt.getAppAttemptId());
am.registerAppAttempt();
//request for containers
int request = 2;
am.allocate("127.0.0.1" , 1000, request,
new ArrayList<ContainerId>());
dispatcher.await();
//kick the scheduler
nm1.nodeHeartbeat(true);
List<Container> conts = am.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
int contReceived = conts.size();
int waitCount = 0;
while (contReceived < request && waitCount++ < 200) {
LOG.info("Got " + contReceived + " containers. Waiting to get "
+ request);
Thread.sleep(100);
conts = am.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
dispatcher.await();
contReceived += conts.size();
nm1.nodeHeartbeat(true);
}
Assert.assertEquals(request, contReceived);
// Release a container.
ArrayList<ContainerId> release = new ArrayList<ContainerId>();
release.add(conts.get(0).getId());
am.allocate(new ArrayList<ResourceRequest>(), release);
dispatcher.await();
// Send one more heartbeat with a fake running container. This is to
// simulate the situation that can happen if the NM reports that container
// is running in the same heartbeat when the RM asks it to clean it up.
Map<ApplicationId, List<ContainerStatus>> containerStatuses =
new HashMap<ApplicationId, List<ContainerStatus>>();
ArrayList<ContainerStatus> containerStatusList =
new ArrayList<ContainerStatus>();
containerStatusList.add(BuilderUtils.newContainerStatus(conts.get(0)
.getId(), ContainerState.RUNNING, "nothing", 0));
containerStatuses.put(app.getApplicationId(), containerStatusList);
NodeHeartbeatResponse resp = nm1.nodeHeartbeat(containerStatuses, true);
dispatcher.await();
List<ContainerId> contsToClean = resp.getContainersToCleanup();
int cleanedConts = contsToClean.size();
waitCount = 0;
while (cleanedConts < 1 && waitCount++ < 200) {
LOG.info("Waiting to get cleanup events.. cleanedConts: " + cleanedConts);
Thread.sleep(100);
resp = nm1.nodeHeartbeat(true);
dispatcher.await();
contsToClean = resp.getContainersToCleanup();
cleanedConts += contsToClean.size();
}
LOG.info("Got cleanup for " + contsToClean.get(0));
Assert.assertEquals(1, cleanedConts);
// Now to test the case when RM already gave cleanup, and NM suddenly
// realizes that the container is running.
LOG.info("Testing container launch much after release and "
+ "NM getting cleanup");
containerStatuses.clear();
containerStatusList.clear();
containerStatusList.add(BuilderUtils.newContainerStatus(conts.get(0)
.getId(), ContainerState.RUNNING, "nothing", 0));
containerStatuses.put(app.getApplicationId(), containerStatusList);
resp = nm1.nodeHeartbeat(containerStatuses, true);
dispatcher.await();
contsToClean = resp.getContainersToCleanup();
cleanedConts = contsToClean.size();
// The cleanup list won't be instantaneous as it is given out by scheduler
// and not RMNodeImpl.
waitCount = 0;
while (cleanedConts < 1 && waitCount++ < 200) {
LOG.info("Waiting to get cleanup events.. cleanedConts: " + cleanedConts);
Thread.sleep(100);
resp = nm1.nodeHeartbeat(true);
dispatcher.await();
contsToClean = resp.getContainersToCleanup();
cleanedConts += contsToClean.size();
}
LOG.info("Got cleanup for " + contsToClean.get(0));
Assert.assertEquals(1, cleanedConts);
rm.stop();
}
public static void main(String[] args) throws Exception {
TestApplicationCleanup t = new TestApplicationCleanup();
t.testAppCleanup();
}
}