/**
* 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.mapreduce.v2.app.local;
import static org.mockito.Matchers.isA;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.io.IOException;
import java.security.PrivilegedExceptionAction;
import java.util.Collections;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.ClusterInfo;
import org.apache.hadoop.mapreduce.v2.app.client.ClientService;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
import org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterRequest;
import org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterResponse;
import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterRequest;
import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerResourceDecrease;
import org.apache.hadoop.yarn.api.records.ContainerResourceIncrease;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NMToken;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.client.ClientRMProxy;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
import org.apache.hadoop.yarn.ipc.RPCUtil;
import org.apache.hadoop.yarn.security.AMRMTokenIdentifier;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.junit.Assert;
import org.junit.Test;
public class TestLocalContainerAllocator {
@Test
public void testRMConnectionRetry() throws Exception {
// verify the connection exception is thrown
// if we haven't exhausted the retry interval
ApplicationMasterProtocol mockScheduler =
mock(ApplicationMasterProtocol.class);
when(mockScheduler.allocate(isA(AllocateRequest.class)))
.thenThrow(RPCUtil.getRemoteException(new IOException("forcefail")));
Configuration conf = new Configuration();
LocalContainerAllocator lca =
new StubbedLocalContainerAllocator(mockScheduler);
lca.init(conf);
lca.start();
try {
lca.heartbeat();
Assert.fail("heartbeat was supposed to throw");
} catch (YarnException e) {
// YarnException is expected
} finally {
lca.stop();
}
// verify YarnRuntimeException is thrown when the retry interval has expired
conf.setLong(MRJobConfig.MR_AM_TO_RM_WAIT_INTERVAL_MS, 0);
lca = new StubbedLocalContainerAllocator(mockScheduler);
lca.init(conf);
lca.start();
try {
lca.heartbeat();
Assert.fail("heartbeat was supposed to throw");
} catch (YarnRuntimeException e) {
// YarnRuntimeException is expected
} finally {
lca.stop();
}
}
@Test
public void testAllocResponseId() throws Exception {
ApplicationMasterProtocol scheduler = new MockScheduler();
Configuration conf = new Configuration();
LocalContainerAllocator lca =
new StubbedLocalContainerAllocator(scheduler);
lca.init(conf);
lca.start();
// do two heartbeats to verify the response ID is being tracked
lca.heartbeat();
lca.heartbeat();
lca.close();
}
@Test
public void testAMRMTokenUpdate() throws Exception {
Configuration conf = new Configuration();
ApplicationAttemptId attemptId = ApplicationAttemptId.newInstance(
ApplicationId.newInstance(1, 1), 1);
AMRMTokenIdentifier oldTokenId = new AMRMTokenIdentifier(attemptId, 1);
AMRMTokenIdentifier newTokenId = new AMRMTokenIdentifier(attemptId, 2);
Token<AMRMTokenIdentifier> oldToken = new Token<AMRMTokenIdentifier>(
oldTokenId.getBytes(), "oldpassword".getBytes(), oldTokenId.getKind(),
new Text());
Token<AMRMTokenIdentifier> newToken = new Token<AMRMTokenIdentifier>(
newTokenId.getBytes(), "newpassword".getBytes(), newTokenId.getKind(),
new Text());
MockScheduler scheduler = new MockScheduler();
scheduler.amToken = newToken;
final LocalContainerAllocator lca =
new StubbedLocalContainerAllocator(scheduler);
lca.init(conf);
lca.start();
UserGroupInformation testUgi = UserGroupInformation.createUserForTesting(
"someuser", new String[0]);
testUgi.addToken(oldToken);
testUgi.doAs(new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws Exception {
lca.heartbeat();
return null;
}
});
lca.close();
// verify there is only one AMRM token in the UGI and it matches the
// updated token from the RM
int tokenCount = 0;
Token<? extends TokenIdentifier> ugiToken = null;
for (Token<? extends TokenIdentifier> token : testUgi.getTokens()) {
if (AMRMTokenIdentifier.KIND_NAME.equals(token.getKind())) {
ugiToken = token;
++tokenCount;
}
}
Assert.assertEquals("too many AMRM tokens", 1, tokenCount);
Assert.assertArrayEquals("token identifier not updated",
newToken.getIdentifier(), ugiToken.getIdentifier());
Assert.assertArrayEquals("token password not updated",
newToken.getPassword(), ugiToken.getPassword());
Assert.assertEquals("AMRM token service not updated",
new Text(ClientRMProxy.getAMRMTokenService(conf)),
ugiToken.getService());
}
private static class StubbedLocalContainerAllocator
extends LocalContainerAllocator {
private ApplicationMasterProtocol scheduler;
public StubbedLocalContainerAllocator(ApplicationMasterProtocol scheduler) {
super(mock(ClientService.class), createAppContext(),
"nmhost", 1, 2, null);
this.scheduler = scheduler;
}
@Override
protected void register() {
}
@Override
protected void unregister() {
}
@Override
protected void startAllocatorThread() {
allocatorThread = new Thread();
}
@Override
protected ApplicationMasterProtocol createSchedulerProxy() {
return scheduler;
}
private static AppContext createAppContext() {
ApplicationId appId = ApplicationId.newInstance(1, 1);
ApplicationAttemptId attemptId =
ApplicationAttemptId.newInstance(appId, 1);
Job job = mock(Job.class);
@SuppressWarnings("rawtypes")
EventHandler eventHandler = mock(EventHandler.class);
AppContext ctx = mock(AppContext.class);
when(ctx.getApplicationID()).thenReturn(appId);
when(ctx.getApplicationAttemptId()).thenReturn(attemptId);
when(ctx.getJob(isA(JobId.class))).thenReturn(job);
when(ctx.getClusterInfo()).thenReturn(
new ClusterInfo(Resource.newInstance(10240, 1)));
when(ctx.getEventHandler()).thenReturn(eventHandler);
return ctx;
}
}
private static class MockScheduler implements ApplicationMasterProtocol {
int responseId = 0;
Token<AMRMTokenIdentifier> amToken = null;
@Override
public RegisterApplicationMasterResponse registerApplicationMaster(
RegisterApplicationMasterRequest request) throws YarnException,
IOException {
return null;
}
@Override
public FinishApplicationMasterResponse finishApplicationMaster(
FinishApplicationMasterRequest request) throws YarnException,
IOException {
return null;
}
@Override
public AllocateResponse allocate(AllocateRequest request)
throws YarnException, IOException {
Assert.assertEquals("response ID mismatch",
responseId, request.getResponseId());
++responseId;
org.apache.hadoop.yarn.api.records.Token yarnToken = null;
if (amToken != null) {
yarnToken = org.apache.hadoop.yarn.api.records.Token.newInstance(
amToken.getIdentifier(), amToken.getKind().toString(),
amToken.getPassword(), amToken.getService().toString());
}
return AllocateResponse.newInstance(responseId,
Collections.<ContainerStatus>emptyList(),
Collections.<Container>emptyList(),
Collections.<NodeReport>emptyList(),
Resources.none(), null, 1, null,
Collections.<NMToken>emptyList(),
yarnToken,
Collections.<ContainerResourceIncrease>emptyList(),
Collections.<ContainerResourceDecrease>emptyList());
}
}
}