@Test
public void testAMAccessDisabled() throws IOException {
// test only applicable when AM not reachable
if (isAMReachableFromClient) {
return;
}
MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);
when(historyServerProxy.getJobReport(getJobReportRequest()))
.thenReturn(getJobReportResponseFromHistoryServer());
ResourceMgrDelegate rmDelegate = mock(ResourceMgrDelegate.class);
try {
when(rmDelegate.getApplicationReport(jobId.getAppId()))
.thenReturn(getRunningApplicationReport("am1", 78))
.thenReturn(getRunningApplicationReport("am1", 78))
.thenReturn(getRunningApplicationReport("am1", 78))
.thenReturn(getFinishedApplicationReport());
} catch (YarnException e) {
throw new IOException(e);
}
ClientServiceDelegate clientServiceDelegate =
spy(getClientServiceDelegate(historyServerProxy, rmDelegate));
JobStatus jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus);
Assert.assertEquals("N/A", jobStatus.getJobName());
verify(clientServiceDelegate, times(0)).instantiateAMProxy(any(InetSocketAddress.class));
// Should not reach AM even for second and third times too.
jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus);
Assert.assertEquals("N/A", jobStatus.getJobName());
verify(clientServiceDelegate, times(0)).instantiateAMProxy(any(InetSocketAddress.class));
jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus);
Assert.assertEquals("N/A", jobStatus.getJobName());
verify(clientServiceDelegate, times(0)).instantiateAMProxy(any(InetSocketAddress.class));
// The third time around, app is completed, so should go to JHS
JobStatus jobStatus1 = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus1);
Assert.assertEquals("TestJobFilePath", jobStatus1.getJobFile());
Assert.assertEquals("http://TestTrackingUrl", jobStatus1.getTrackingUrl());
Assert.assertEquals(1.0f, jobStatus1.getMapProgress(), 0.0f);
Assert.assertEquals(1.0f, jobStatus1.getReduceProgress(), 0.0f);
verify(clientServiceDelegate, times(0)).instantiateAMProxy(any(InetSocketAddress.class));
}
public static JobStatus downgrade(org.apache.hadoop.mapreduce.JobStatus stat) {
JobStatus old =
new JobStatus(
JobID.downgrade(stat.getJobID()),
stat.getSetupProgress(),
stat.getMapProgress(),
stat.getReduceProgress(),
stat.getCleanupProgress(),
stat.getState().getValue(),
JobPriority.valueOf(stat.getPriority().name()),
stat.getUsername(),
stat.getJobName(),
stat.getJobFile(),
stat.getTrackingUrl());
old.setStartTime(stat.getStartTime());
old.setFinishTime(stat.getFinishTime());
old.setSchedulingInfo(stat.getSchedulingInfo());
old.setHistoryFile(stat.getHistoryFile());
return old;
}
@Test
public void testReconnectOnAMRestart() throws IOException {
// test not applicable when AM not reachable
// as instantiateAMProxy is not called at all
if (!isAMReachableFromClient) {
return;
}
MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);
// RM returns AM1 url, null, null and AM2 url on invocations.
// Nulls simulate the time when AM2 is in the process of restarting.
ResourceMgrDelegate rmDelegate = mock(ResourceMgrDelegate.class);
try {
when(rmDelegate.getApplicationReport(jobId.getAppId()))
.thenReturn(getRunningApplicationReport("am1", 78))
.thenReturn(getRunningApplicationReport(null, 0))
.thenReturn(getRunningApplicationReport(null, 0))
.thenReturn(getRunningApplicationReport("am2", 90));
} catch (YarnException e) {
throw new IOException(e);
}
GetJobReportResponse jobReportResponse1 = mock(GetJobReportResponse.class);
when(jobReportResponse1.getJobReport())
.thenReturn(
MRBuilderUtils.newJobReport(
jobId,
"jobName-firstGen",
"user",
JobState.RUNNING,
0,
0,
0,
0,
0,
0,
0,
"anything",
null,
false,
""));
// First AM returns a report with jobName firstGen and simulates AM shutdown
// on second invocation.
MRClientProtocol firstGenAMProxy = mock(MRClientProtocol.class);
when(firstGenAMProxy.getJobReport(any(GetJobReportRequest.class)))
.thenReturn(jobReportResponse1)
.thenThrow(new RuntimeException("AM is down!"));
GetJobReportResponse jobReportResponse2 = mock(GetJobReportResponse.class);
when(jobReportResponse2.getJobReport())
.thenReturn(
MRBuilderUtils.newJobReport(
jobId,
"jobName-secondGen",
"user",
JobState.RUNNING,
0,
0,
0,
0,
0,
0,
0,
"anything",
null,
false,
""));
// Second AM generation returns a report with jobName secondGen
MRClientProtocol secondGenAMProxy = mock(MRClientProtocol.class);
when(secondGenAMProxy.getJobReport(any(GetJobReportRequest.class)))
.thenReturn(jobReportResponse2);
ClientServiceDelegate clientServiceDelegate =
spy(getClientServiceDelegate(historyServerProxy, rmDelegate));
// First time, connection should be to AM1, then to AM2. Further requests
// should use the same proxy to AM2 and so instantiateProxy shouldn't be
// called.
doReturn(firstGenAMProxy)
.doReturn(secondGenAMProxy)
.when(clientServiceDelegate)
.instantiateAMProxy(any(InetSocketAddress.class));
JobStatus jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus);
Assert.assertEquals("jobName-firstGen", jobStatus.getJobName());
jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus);
Assert.assertEquals("jobName-secondGen", jobStatus.getJobName());
jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
Assert.assertNotNull(jobStatus);
Assert.assertEquals("jobName-secondGen", jobStatus.getJobName());
verify(clientServiceDelegate, times(2)).instantiateAMProxy(any(InetSocketAddress.class));
}