@Test(timeout = 20000)
public void testKilledDuringSetup() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer =
new StubbedOutputCommitter() {
@Override
public synchronized void setupJob(JobContext jobContext) throws IOException {
while (!Thread.interrupted()) {
try {
wait();
} catch (InterruptedException e) {
}
}
}
};
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createStubbedJob(conf, dispatcher, 2, null);
JobId jobId = job.getID();
job.handle(new JobEvent(jobId, JobEventType.JOB_INIT));
assertJobState(job, JobStateInternal.INITED);
job.handle(new JobStartEvent(jobId));
assertJobState(job, JobStateInternal.SETUP);
job.handle(new JobEvent(job.getID(), JobEventType.JOB_KILL));
assertJobState(job, JobStateInternal.KILLED);
dispatcher.stop();
commitHandler.stop();
}
@Test(timeout = 20000)
public void testCheckJobCompleteSuccess() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
CyclicBarrier syncBarrier = new CyclicBarrier(2);
OutputCommitter committer = new TestingOutputCommitter(syncBarrier, true);
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createRunningStubbedJob(conf, dispatcher, 2, null);
completeJobTasks(job);
assertJobState(job, JobStateInternal.COMMITTING);
// let the committer complete and verify the job succeeds
syncBarrier.await();
assertJobState(job, JobStateInternal.SUCCEEDED);
job.handle(new JobEvent(job.getID(), JobEventType.JOB_TASK_ATTEMPT_COMPLETED));
assertJobState(job, JobStateInternal.SUCCEEDED);
job.handle(new JobEvent(job.getID(), JobEventType.JOB_MAP_TASK_RESCHEDULED));
assertJobState(job, JobStateInternal.SUCCEEDED);
dispatcher.stop();
commitHandler.stop();
}
@Test
public void testAbortJobCalledAfterKillingTasks() throws IOException {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
conf.set(MRJobConfig.MR_AM_COMMITTER_CANCEL_TIMEOUT_MS, "1000");
InlineDispatcher dispatcher = new InlineDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer = Mockito.mock(OutputCommitter.class);
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createRunningStubbedJob(conf, dispatcher, 2, null);
// Fail one task. This should land the JobImpl in the FAIL_WAIT state
job.handle(
new JobTaskEvent(MRBuilderUtils.newTaskId(job.getID(), 1, TaskType.MAP), TaskState.FAILED));
// Verify abort job hasn't been called
Mockito.verify(committer, Mockito.never())
.abortJob((JobContext) Mockito.any(), (State) Mockito.any());
assertJobState(job, JobStateInternal.FAIL_WAIT);
// Verify abortJob is called once and the job failed
Mockito.verify(committer, Mockito.timeout(2000).times(1))
.abortJob((JobContext) Mockito.any(), (State) Mockito.any());
assertJobState(job, JobStateInternal.FAILED);
dispatcher.stop();
}
@Test(timeout = 20000)
public void testRebootedDuringCommit() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
conf.setInt(MRJobConfig.MR_AM_MAX_ATTEMPTS, 2);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
CyclicBarrier syncBarrier = new CyclicBarrier(2);
OutputCommitter committer = new WaitingOutputCommitter(syncBarrier, true);
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
AppContext mockContext = mock(AppContext.class);
when(mockContext.isLastAMRetry()).thenReturn(true);
when(mockContext.hasSuccessfullyUnregistered()).thenReturn(false);
JobImpl job = createRunningStubbedJob(conf, dispatcher, 2, mockContext);
completeJobTasks(job);
assertJobState(job, JobStateInternal.COMMITTING);
syncBarrier.await();
job.handle(new JobEvent(job.getID(), JobEventType.JOB_AM_REBOOT));
assertJobState(job, JobStateInternal.REBOOT);
// return the external state as ERROR since this is last retry.
Assert.assertEquals(JobState.RUNNING, job.getState());
when(mockContext.hasSuccessfullyUnregistered()).thenReturn(true);
Assert.assertEquals(JobState.ERROR, job.getState());
dispatcher.stop();
commitHandler.stop();
}
private static void completeJobTasks(JobImpl job) {
// complete the map tasks and the reduce tasks so we start committing
int numMaps = job.getTotalMaps();
for (int i = 0; i < numMaps; ++i) {
job.handle(
new JobTaskEvent(
MRBuilderUtils.newTaskId(job.getID(), 1, TaskType.MAP), TaskState.SUCCEEDED));
Assert.assertEquals(JobState.RUNNING, job.getState());
}
int numReduces = job.getTotalReduces();
for (int i = 0; i < numReduces; ++i) {
job.handle(
new JobTaskEvent(
MRBuilderUtils.newTaskId(job.getID(), 1, TaskType.MAP), TaskState.SUCCEEDED));
Assert.assertEquals(JobState.RUNNING, job.getState());
}
}
@Test(timeout = 20000)
public void testRebootedDuringSetup() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer =
new StubbedOutputCommitter() {
@Override
public synchronized void setupJob(JobContext jobContext) throws IOException {
while (!Thread.interrupted()) {
try {
wait();
} catch (InterruptedException e) {
}
}
}
};
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
AppContext mockContext = mock(AppContext.class);
when(mockContext.isLastAMRetry()).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);
job.handle(new JobStartEvent(jobId));
assertJobState(job, JobStateInternal.SETUP);
job.handle(new JobEvent(job.getID(), JobEventType.JOB_AM_REBOOT));
assertJobState(job, JobStateInternal.REBOOT);
// return the external state as RUNNING since otherwise JobClient will
// exit when it polls the AM for job state
Assert.assertEquals(JobState.RUNNING, job.getState());
dispatcher.stop();
commitHandler.stop();
}
@Test
public void testJobNoTasks() {
Configuration conf = new Configuration();
conf.setInt(MRJobConfig.NUM_REDUCES, 0);
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
conf.set(MRJobConfig.WORKFLOW_ID, "testId");
conf.set(MRJobConfig.WORKFLOW_NAME, "testName");
conf.set(MRJobConfig.WORKFLOW_NODE_NAME, "testNodeName");
conf.set(MRJobConfig.WORKFLOW_ADJACENCY_PREFIX_STRING + "key1", "value1");
conf.set(MRJobConfig.WORKFLOW_ADJACENCY_PREFIX_STRING + "key2", "value2");
conf.set(MRJobConfig.WORKFLOW_TAGS, "tag1,tag2");
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer = mock(OutputCommitter.class);
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobSubmittedEventHandler jseHandler =
new JobSubmittedEventHandler(
"testId",
"testName",
"testNodeName",
"\"key2\"=\"value2\" \"key1\"=\"value1\" ",
"tag1,tag2");
dispatcher.register(EventType.class, jseHandler);
JobImpl job = createStubbedJob(conf, dispatcher, 0, null);
job.handle(new JobEvent(job.getID(), JobEventType.JOB_INIT));
assertJobState(job, JobStateInternal.INITED);
job.handle(new JobStartEvent(job.getID()));
assertJobState(job, JobStateInternal.SUCCEEDED);
dispatcher.stop();
commitHandler.stop();
try {
Assert.assertTrue(jseHandler.getAssertValue());
} catch (InterruptedException e) {
Assert.fail("Workflow related attributes are not tested properly");
}
}
@Test(timeout = 20000)
public void testKilledDuringCommit() throws Exception {
Configuration conf = new Configuration();
conf.set(MRJobConfig.MR_AM_STAGING_DIR, stagingDir);
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
CyclicBarrier syncBarrier = new CyclicBarrier(2);
OutputCommitter committer = new WaitingOutputCommitter(syncBarrier, true);
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
JobImpl job = createRunningStubbedJob(conf, dispatcher, 2, null);
completeJobTasks(job);
assertJobState(job, JobStateInternal.COMMITTING);
syncBarrier.await();
job.handle(new JobEvent(job.getID(), JobEventType.JOB_KILL));
assertJobState(job, JobStateInternal.KILLED);
dispatcher.stop();
commitHandler.stop();
}
@Test
public void testTransitionsAtFailed() throws IOException {
Configuration conf = new Configuration();
AsyncDispatcher dispatcher = new AsyncDispatcher();
dispatcher.init(conf);
dispatcher.start();
OutputCommitter committer = mock(OutputCommitter.class);
doThrow(new IOException("forcefail")).when(committer).setupJob(any(JobContext.class));
CommitterEventHandler commitHandler = createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
AppContext mockContext = mock(AppContext.class);
when(mockContext.hasSuccessfullyUnregistered()).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);
job.handle(new JobStartEvent(jobId));
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_COMPLETED));
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_ATTEMPT_COMPLETED));
assertJobState(job, JobStateInternal.FAILED);
job.handle(new JobEvent(jobId, JobEventType.JOB_MAP_TASK_RESCHEDULED));
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.hasSuccessfullyUnregistered()).thenReturn(true);
Assert.assertEquals(JobState.FAILED, job.getState());
dispatcher.stop();
commitHandler.stop();
}