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MAPREDUCE-5505. Clients should be notified job finished only after job successfully unregistered (Zhijie Shen via bikas)

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1526071 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Bikas Saha 2013-09-25 00:46:48 +00:00
parent 10a4289ebf
commit 524dad1109
10 changed files with 134 additions and 14 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -216,6 +216,9 @@ Release 2.1.2 - UNRELEASED
needs to set up its own certificates etc and not depend on clusters'.
(Omkar Vinit Joshi via vinodkv)
MAPREDUCE-5505. Clients should be notified job finished only after job
successfully unregistered (Zhijie Shen via bikas)
Release 2.1.1-beta - 2013-09-23
INCOMPATIBLE CHANGES

3
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/AppContext.java
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@ -63,4 +63,7 @@ public interface AppContext {
ClientToAMTokenSecretManager getClientToAMTokenSecretManager();
boolean isLastAMRetry();
boolean safeToReportTerminationToUser();
}

16
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java
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@ -31,6 +31,7 @@
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
@ -209,6 +210,10 @@ public class MRAppMaster extends CompositeService {
private long recoveredJobStartTime = 0;
@VisibleForTesting
protected AtomicBoolean safeToReportTerminationToUser =
new AtomicBoolean(false);
public MRAppMaster(ApplicationAttemptId applicationAttemptId,
ContainerId containerId, String nmHost, int nmPort, int nmHttpPort,
long appSubmitTime, int maxAppAttempts) {
@ -554,8 +559,10 @@ public void shutDownJob() {
LOG.info("Calling stop for all the services");
MRAppMaster.this.stop();
// TODO: Stop ClientService last, since only ClientService should wait for
// some time so clients can know the final states. Will be removed once RM come on.
// Except ClientService, other services are already stopped, it is safe to
// let clients know the final states. ClientService should wait for some
// time so clients have enough time to know the final states.
safeToReportTerminationToUser.set(true);
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
@ -964,6 +971,11 @@ public ClientToAMTokenSecretManager getClientToAMTokenSecretManager() {
public boolean isLastAMRetry(){
return isLastAMRetry;
}
@Override
public boolean safeToReportTerminationToUser() {
return safeToReportTerminationToUser.get();
}
}
@SuppressWarnings("unchecked")

21
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java
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@ -641,6 +641,8 @@ JobEventType.JOB_KILL, new KillTasksTransition())
private ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(1);
private ScheduledFuture failWaitTriggerScheduledFuture;
private JobState lastNonFinalState = JobState.NEW;
public JobImpl(JobId jobId, ApplicationAttemptId applicationAttemptId,
Configuration conf, EventHandler eventHandler,
TaskAttemptListener taskAttemptListener,
@ -928,7 +930,14 @@ public Map<TaskId,Task> getTasks(TaskType taskType) {
public JobState getState() {
readLock.lock();
try {
return getExternalState(getInternalState());
JobState state = getExternalState(getInternalState());
if (!appContext.safeToReportTerminationToUser()
&& (state == JobState.SUCCEEDED || state == JobState.FAILED
|| state == JobState.KILLED || state == JobState.ERROR)) {
return lastNonFinalState;
} else {
return state;
}
} finally {
readLock.unlock();
}
@ -972,6 +981,7 @@ public void handle(JobEvent event) {
if (oldState != getInternalState()) {
LOG.info(jobId + "Job Transitioned from " + oldState + " to "
+ getInternalState());
rememberLastNonFinalState(oldState);
}
}
@ -980,6 +990,15 @@ public void handle(JobEvent event) {
}
}
private void rememberLastNonFinalState(JobStateInternal stateInternal) {
JobState state = getExternalState(stateInternal);
// if state is not the final state, set lastNonFinalState
if (state != JobState.SUCCEEDED && state != JobState.FAILED
&& state != JobState.KILLED && state != JobState.ERROR) {
lastNonFinalState = state;
}
}
@Private
public JobStateInternal getInternalState() {
readLock.lock();

42
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRApp.java
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@ -135,11 +135,22 @@ public MRApp(int maps, int reduces, boolean autoComplete, String testName,
this(maps, reduces, autoComplete, testName, cleanOnStart, 1, clock);
}
public MRApp(int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, Clock clock, boolean shutdown) {
this(maps, reduces, autoComplete, testName, cleanOnStart, 1, clock,
shutdown);
}
public MRApp(int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart) {
this(maps, reduces, autoComplete, testName, cleanOnStart, 1);
}
public MRApp(int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, boolean shutdown) {
this(maps, reduces, autoComplete, testName, cleanOnStart, 1, shutdown);
}
@Override
protected void initJobCredentialsAndUGI(Configuration conf) {
// Fake a shuffle secret that normally is provided by the job client.
@ -169,23 +180,43 @@ public MRApp(int maps, int reduces, boolean autoComplete, String testName,
new SystemClock());
}
public MRApp(int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, int startCount, boolean shutdown) {
this(maps, reduces, autoComplete, testName, cleanOnStart, startCount,
new SystemClock(), shutdown);
}
public MRApp(int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, int startCount, Clock clock, boolean shutdown) {
this(getApplicationAttemptId(applicationId, startCount), getContainerId(
applicationId, startCount), maps, reduces, autoComplete, testName,
cleanOnStart, startCount, clock, shutdown);
}
public MRApp(int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, int startCount, Clock clock) {
this(getApplicationAttemptId(applicationId, startCount), getContainerId(
applicationId, startCount), maps, reduces, autoComplete, testName,
cleanOnStart, startCount, clock);
cleanOnStart, startCount, clock, true);
}
public MRApp(ApplicationAttemptId appAttemptId, ContainerId amContainerId,
int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, int startCount, boolean shutdown) {
this(appAttemptId, amContainerId, maps, reduces, autoComplete, testName,
cleanOnStart, startCount, new SystemClock(), shutdown);
}
public MRApp(ApplicationAttemptId appAttemptId, ContainerId amContainerId,
int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, int startCount) {
this(appAttemptId, amContainerId, maps, reduces, autoComplete, testName,
cleanOnStart, startCount, new SystemClock());
cleanOnStart, startCount, new SystemClock(), true);
}
public MRApp(ApplicationAttemptId appAttemptId, ContainerId amContainerId,
int maps, int reduces, boolean autoComplete, String testName,
boolean cleanOnStart, int startCount, Clock clock) {
boolean cleanOnStart, int startCount, Clock clock, boolean shutdown) {
super(appAttemptId, amContainerId, NM_HOST, NM_PORT, NM_HTTP_PORT, clock, System
.currentTimeMillis(), MRJobConfig.DEFAULT_MR_AM_MAX_ATTEMPTS);
this.testWorkDir = new File("target", testName);
@ -204,6 +235,9 @@ public MRApp(ApplicationAttemptId appAttemptId, ContainerId amContainerId,
this.maps = maps;
this.reduces = reduces;
this.autoComplete = autoComplete;
// If safeToReportTerminationToUser is set to true, we can verify whether
// the job can reaches the final state when MRAppMaster shuts down.
this.safeToReportTerminationToUser.set(shutdown);
}
@Override

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MockAppContext.java
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@ -135,4 +135,11 @@ public ClientToAMTokenSecretManager getClientToAMTokenSecretManager() {
public boolean isLastAMRetry() {
return false;
}
@Override
public boolean safeToReportTerminationToUser() {
// bogus - Not Required
return true;
}
}

14
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestMRApp.java
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@ -44,6 +44,7 @@
import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobStartEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobUpdatedNodesEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
@ -374,6 +375,19 @@ public void testJobError() throws Exception {
app.waitForState(job, JobState.ERROR);
}
@SuppressWarnings("resource")
@Test
public void testJobSuccess() throws Exception {
MRApp app = new MRApp(2, 2, true, this.getClass().getName(), true, false);
JobImpl job = (JobImpl) app.submit(new Configuration());
app.waitForInternalState(job, JobStateInternal.SUCCEEDED);
// AM is not unregistered
Assert.assertEquals(JobState.RUNNING, job.getState());
// imitate that AM is unregistered
app.safeToReportTerminationToUser.set(true);
app.waitForState(job, JobState.SUCCEEDED);
}
@Test
public void testJobRebootNotLastRetry() throws Exception {
MRApp app = new MRApp(1, 0, false, this.getClass().getName(), true);

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRuntimeEstimators.java
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@ -867,5 +867,12 @@ public ClientToAMTokenSecretManager getClientToAMTokenSecretManager() {
public boolean isLastAMRetry() {
return false;
}
@Override
public boolean safeToReportTerminationToUser() {
// bogus - Not Required
return true;
}
}
}

28
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestJobImpl.java
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@ -275,6 +275,7 @@ public void testRebootedDuringCommit() throws Exception {
AppContext mockContext = mock(AppContext.class);
when(mockContext.isLastAMRetry()).thenReturn(true);
when(mockContext.safeToReportTerminationToUser()).thenReturn(false);
JobImpl job = createRunningStubbedJob(conf, dispatcher, 2, mockContext);
completeJobTasks(job);
assertJobState(job, JobStateInternal.COMMITTING);
@ -282,7 +283,9 @@ public void testRebootedDuringCommit() throws Exception {
syncBarrier.await();
job.handle(new JobEvent(job.getID(), JobEventType.JOB_AM_REBOOT));
assertJobState(job, JobStateInternal.REBOOT);
// return the external state as FAILED since this is last retry.
// return the external state as ERROR since this is last retry.
Assert.assertEquals(JobState.RUNNING, job.getState());
when(mockContext.safeToReportTerminationToUser()).thenReturn(true);
Assert.assertEquals(JobState.ERROR, job.getState());
dispatcher.stop();
@ -590,12 +593,14 @@ public void testReportDiagnostics() throws Exception {
final JobDiagnosticsUpdateEvent diagUpdateEvent =
new JobDiagnosticsUpdateEvent(jobId, diagMsg);
MRAppMetrics mrAppMetrics = MRAppMetrics.create();
AppContext mockContext = mock(AppContext.class);
when(mockContext.safeToReportTerminationToUser()).thenReturn(true);
JobImpl job = new JobImpl(jobId, Records
.newRecord(ApplicationAttemptId.class), new Configuration(),
mock(EventHandler.class),
null, mock(JobTokenSecretManager.class), null,
new SystemClock(), null,
mrAppMetrics, null, true, null, 0, null, null, null, null);
mrAppMetrics, null, true, null, 0, null, mockContext, null, null);
job.handle(diagUpdateEvent);
String diagnostics = job.getReport().getDiagnostics();
Assert.assertNotNull(diagnostics);
@ -606,7 +611,7 @@ null, mock(JobTokenSecretManager.class), null,
mock(EventHandler.class),
null, mock(JobTokenSecretManager.class), null,
new SystemClock(), null,
mrAppMetrics, null, true, null, 0, null, null, null, null);
mrAppMetrics, null, true, null, 0, null, mockContext, null, null);
job.handle(new JobEvent(jobId, JobEventType.JOB_KILL));
job.handle(diagUpdateEvent);
diagnostics = job.getReport().getDiagnostics();
@ -699,7 +704,9 @@ public void testTransitionsAtFailed() throws IOException {
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createStubbedJob(conf, dispatcher, 2, null);
AppContext mockContext = mock(AppContext.class);
when(mockContext.safeToReportTerminationToUser()).thenReturn(false);
JobImpl job = createStubbedJob(conf, dispatcher, 2, mockContext);
JobId jobId = job.getID();
job.handle(new JobEvent(jobId, JobEventType.JOB_INIT));
assertJobState(job, JobStateInternal.INITED);
@ -707,12 +714,15 @@ public void testTransitionsAtFailed() throws IOException {
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_COMPLETED));
Assert.assertEquals(JobState.FAILED, job.getState());
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_ATTEMPT_COMPLETED));
Assert.assertEquals(JobState.FAILED, job.getState());
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_MAP_TASK_RESCHEDULED));
Assert.assertEquals(JobState.FAILED, job.getState());
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE));
assertJobState(job, JobStateInternal.FAILED);
Assert.assertEquals(JobState.RUNNING, job.getState());
when(mockContext.safeToReportTerminationToUser()).thenReturn(true);
Assert.assertEquals(JobState.FAILED, job.getState());
dispatcher.stop();
@ -750,6 +760,10 @@ private static StubbedJob createStubbedJob(Configuration conf,
Dispatcher dispatcher, int numSplits, AppContext appContext) {
JobID jobID = JobID.forName("job_1234567890000_0001");
JobId jobId = TypeConverter.toYarn(jobID);
if (appContext == null) {
appContext = mock(AppContext.class);
when(appContext.safeToReportTerminationToUser()).thenReturn(true);
}
StubbedJob job = new StubbedJob(jobId,
ApplicationAttemptId.newInstance(ApplicationId.newInstance(0, 0), 0),
conf,dispatcher.getEventHandler(), true, "somebody", numSplits, appContext);

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java
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@ -387,4 +387,11 @@ public boolean isLastAMRetry() {
// bogus - Not Required
return false;
}
@Override
public boolean safeToReportTerminationToUser() {
// bogus - Not Required
return true;
}
}