/**
* 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.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
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.Priority;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.ResourceRequest;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
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.NMContainerStatus;
import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.MemoryRMStateStore;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
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.Assert;
import org.junit.Before;
import org.junit.Test;
public class TestApplicationCleanup {
private static final Log LOG = LogFactory
.getLog(TestApplicationCleanup.class);
private YarnConfiguration conf;
@Before
public void setup() throws UnknownHostException {
Logger rootLogger = LogManager.getRootLogger();
rootLogger.setLevel(Level.DEBUG);
conf = new YarnConfiguration();
UserGroupInformation.setConfiguration(conf);
conf.set(YarnConfiguration.RECOVERY_ENABLED, "true");
conf.set(YarnConfiguration.RM_STORE, MemoryRMStateStore.class.getName());
Assert.assertTrue(YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS > 1);
}
@SuppressWarnings("resource")
@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> containersToCleanup = resp.getContainersToCleanup();
List<ApplicationId> appsToCleanup = resp.getApplicationsToCleanup();
int numCleanedContainers = containersToCleanup.size();
int numCleanedApps = appsToCleanup.size();
waitCount = 0;
while ((numCleanedContainers < 2 || numCleanedApps < 1)
&& waitCount++ < 200) {
LOG.info("Waiting to get cleanup events.. cleanedConts: "
+ numCleanedContainers + " cleanedApps: " + numCleanedApps);
Thread.sleep(100);
resp = nm1.nodeHeartbeat(true);
List<ContainerId> deltaContainersToCleanup =
resp.getContainersToCleanup();
List<ApplicationId> deltaAppsToCleanup = resp.getApplicationsToCleanup();
// Add the deltas to the global list
containersToCleanup.addAll(deltaContainersToCleanup);
appsToCleanup.addAll(deltaAppsToCleanup);
// Update counts now
numCleanedContainers = containersToCleanup.size();
numCleanedApps = appsToCleanup.size();
}
Assert.assertEquals(1, appsToCleanup.size());
Assert.assertEquals(app.getApplicationId(), appsToCleanup.get(0));
Assert.assertEquals(1, numCleanedApps);
Assert.assertEquals(2, numCleanedContainers);
rm.stop();
}
@SuppressWarnings("resource")
@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();
}
private void waitForAppCleanupMessageRecved(MockNM nm, ApplicationId appId)
throws Exception {
while (true) {
NodeHeartbeatResponse response = nm.nodeHeartbeat(true);
if (response.getApplicationsToCleanup() != null
&& response.getApplicationsToCleanup().size() == 1
&& appId.equals(response.getApplicationsToCleanup().get(0))) {
return;
}
LOG.info("Haven't got application=" + appId.toString()
+ " in cleanup list from node heartbeat response, "
+ "sleep for a while before next heartbeat");
Thread.sleep(1000);
}
}
private MockAM launchAM(RMApp app, MockRM rm, MockNM nm)
throws Exception {
RMAppAttempt attempt = app.getCurrentAppAttempt();
nm.nodeHeartbeat(true);
MockAM am = rm.sendAMLaunched(attempt.getAppAttemptId());
am.registerAppAttempt();
rm.waitForState(app.getApplicationId(), RMAppState.RUNNING);
return am;
}
@SuppressWarnings("resource")
@Test (timeout = 60000)
public void testAppCleanupWhenRMRestartedAfterAppFinished() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 1);
MemoryRMStateStore memStore = new MemoryRMStateStore();
memStore.init(conf);
// start RM
MockRM rm1 = new MockRM(conf, memStore);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// create app and launch the AM
RMApp app0 = rm1.submitApp(200);
MockAM am0 = launchAM(app0, rm1, nm1);
nm1.nodeHeartbeat(am0.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
rm1.waitForState(app0.getApplicationId(), RMAppState.FAILED);
// start new RM
MockRM rm2 = new MockRM(conf, memStore);
rm2.start();
// nm1 register to rm2, and do a heartbeat
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
nm1.registerNode(Arrays.asList(app0.getApplicationId()));
rm2.waitForState(app0.getApplicationId(), RMAppState.FAILED);
// wait for application cleanup message received
waitForAppCleanupMessageRecved(nm1, app0.getApplicationId());
rm1.stop();
rm2.stop();
}
@SuppressWarnings("resource")
@Test(timeout = 60000)
public void testAppCleanupWhenRMRestartedBeforeAppFinished() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 1);
MemoryRMStateStore memStore = new MemoryRMStateStore();
memStore.init(conf);
// start RM
MockRM rm1 = new MockRM(conf, memStore);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 1024, rm1.getResourceTrackerService());
nm1.registerNode();
MockNM nm2 =
new MockNM("127.0.0.1:5678", 1024, rm1.getResourceTrackerService());
nm2.registerNode();
// create app and launch the AM
RMApp app0 = rm1.submitApp(200);
MockAM am0 = launchAM(app0, rm1, nm1);
// alloc another container on nm2
AllocateResponse allocResponse =
am0.allocate(Arrays.asList(ResourceRequest.newInstance(
Priority.newInstance(1), "*", Resource.newInstance(1024, 0), 1)),
null);
while (null == allocResponse.getAllocatedContainers()
|| allocResponse.getAllocatedContainers().isEmpty()) {
nm2.nodeHeartbeat(true);
allocResponse = am0.allocate(null, null);
Thread.sleep(1000);
}
// start new RM
MockRM rm2 = new MockRM(conf, memStore);
rm2.start();
// nm1/nm2 register to rm2, and do a heartbeat
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
nm1.registerNode(Arrays.asList(NMContainerStatus.newInstance(
ContainerId.newInstance(am0.getApplicationAttemptId(), 1),
ContainerState.COMPLETE, Resource.newInstance(1024, 1), "", 0,
Priority.newInstance(0), 1234)), Arrays.asList(app0.getApplicationId()));
nm2.setResourceTrackerService(rm2.getResourceTrackerService());
nm2.registerNode(Arrays.asList(app0.getApplicationId()));
// assert app state has been saved.
rm2.waitForState(app0.getApplicationId(), RMAppState.FAILED);
// wait for application cleanup message received on NM1
waitForAppCleanupMessageRecved(nm1, app0.getApplicationId());
// wait for application cleanup message received on NM2
waitForAppCleanupMessageRecved(nm2, app0.getApplicationId());
rm1.stop();
rm2.stop();
}
public static void main(String[] args) throws Exception {
TestApplicationCleanup t = new TestApplicationCleanup();
t.testAppCleanup();
}
}