Package org.apache.hadoop.mapreduce.v2.api

Examples of org.apache.hadoop.mapreduce.v2.api.MRClientProtocol

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    Task task = job.getTasks().values().iterator().next();
    TaskAttempt attempt = task.getAttempts().values().iterator().next();

    HistoryClientService historyService = historyServer.getClientService();
    MRClientProtocol protocol = historyService.getClientHandler();

    GetTaskAttemptReportRequest gtarRequest = recordFactory
            .newRecordInstance(GetTaskAttemptReportRequest.class);
    // test getTaskAttemptReport
    TaskAttemptId taId = attempt.getID();
    taId.setTaskId(task.getID());
    taId.getTaskId().setJobId(job.getID());
    gtarRequest.setTaskAttemptId(taId);
    GetTaskAttemptReportResponse response = protocol
            .getTaskAttemptReport(gtarRequest);
    assertEquals("container_0_0000_01_000000", response.getTaskAttemptReport()
            .getContainerId().toString());
    assertTrue(response.getTaskAttemptReport().getDiagnosticInfo().isEmpty());
    // counters
    assertNotNull(response.getTaskAttemptReport().getCounters()
            .getCounter(TaskCounter.PHYSICAL_MEMORY_BYTES));
    assertEquals(taId.toString(), response.getTaskAttemptReport()
            .getTaskAttemptId().toString());
    // test getTaskReport
    GetTaskReportRequest request = recordFactory
            .newRecordInstance(GetTaskReportRequest.class);
    TaskId taskId = task.getID();
    taskId.setJobId(job.getID());
    request.setTaskId(taskId);
    GetTaskReportResponse reportResponse = protocol.getTaskReport(request);
    assertEquals("", reportResponse.getTaskReport().getDiagnosticsList()
            .iterator().next());
    // progress
    assertEquals(1.0f, reportResponse.getTaskReport().getProgress(), 0.01);
    // report has corrected taskId
    assertEquals(taskId.toString(), reportResponse.getTaskReport().getTaskId()
            .toString());
    // Task state should be SUCCEEDED
    assertEquals(TaskState.SUCCEEDED, reportResponse.getTaskReport()
            .getTaskState());
    // test getTaskAttemptCompletionEvents
    GetTaskAttemptCompletionEventsRequest taskAttemptRequest = recordFactory
            .newRecordInstance(GetTaskAttemptCompletionEventsRequest.class);
    taskAttemptRequest.setJobId(job.getID());
    GetTaskAttemptCompletionEventsResponse taskAttemptCompletionEventsResponse = protocol
            .getTaskAttemptCompletionEvents(taskAttemptRequest);
    assertEquals(0, taskAttemptCompletionEventsResponse.getCompletionEventCount());
   
    // test getDiagnostics
    GetDiagnosticsRequest diagnosticRequest = recordFactory
            .newRecordInstance(GetDiagnosticsRequest.class);
    diagnosticRequest.setTaskAttemptId(taId);
    GetDiagnosticsResponse diagnosticResponse = protocol
            .getDiagnostics(diagnosticRequest);
    // it is strange : why one empty string ?
    assertEquals(1, diagnosticResponse.getDiagnosticsCount());
    assertEquals("", diagnosticResponse.getDiagnostics(0));
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  MRClientProtocol instantiateAMProxy(final InetSocketAddress serviceAddr)
      throws IOException {
    LOG.trace("Connecting to ApplicationMaster at: " + serviceAddr);
    YarnRPC rpc = YarnRPC.create(conf);
    MRClientProtocol proxy =
         (MRClientProtocol) rpc.getProxy(MRClientProtocol.class,
            serviceAddr, conf);
    LOG.trace("Connected to ApplicationMaster at: " + serviceAddr);
    return proxy;
  }
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  }

  @VisibleForTesting
  void addHistoryToken(Credentials ts) throws IOException, InterruptedException {
    /* check if we have a hsproxy, if not, no need */
    MRClientProtocol hsProxy = clientCache.getInitializedHSProxy();
    if (UserGroupInformation.isSecurityEnabled() && (hsProxy != null)) {
      /*
       * note that get delegation token was called. Again this is hack for oozie
       * to make sure we add history server delegation tokens to the credentials
       */
      RMDelegationTokenSelector tokenSelector = new RMDelegationTokenSelector();
      Text service = SecurityUtil.buildTokenService(resMgrDelegate
          .getConnectAddress());
      if (tokenSelector.selectToken(service, ts.getAllTokens()) != null) {
        Text hsService = SecurityUtil.buildTokenService(hsProxy
            .getConnectAddress());
        if (ts.getToken(hsService) == null) {
          ts.addToken(hsService, getDelegationTokenFromHS(hsProxy));
        }
      }
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    return Arrays.asList(data);
  }

  @Test
  public void testUnknownAppInRM() throws Exception {
    MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);
    when(historyServerProxy.getJobReport(getJobReportRequest())).thenReturn(
        getJobReportResponse());
    ClientServiceDelegate clientServiceDelegate = getClientServiceDelegate(
        historyServerProxy, getRMDelegate());

    JobStatus jobStatus = clientServiceDelegate.getJobStatus(oldJobId);
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  }

  @Test
  public void testRemoteExceptionFromHistoryServer() throws Exception {

    MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);
    when(historyServerProxy.getJobReport(getJobReportRequest())).thenThrow(
        new IOException("Job ID doesnot Exist"));

    ResourceMgrDelegate rm = mock(ResourceMgrDelegate.class);
    when(rm.getApplicationReport(TypeConverter.toYarn(oldJobId).getAppId()))
        .thenReturn(null);
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  }

  @Test
  public void testRetriesOnConnectionFailure() throws Exception {

    MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);
    when(historyServerProxy.getJobReport(getJobReportRequest())).thenThrow(
        new RuntimeException("1")).thenThrow(new RuntimeException("2"))      
        .thenReturn(getJobReportResponse());

    ResourceMgrDelegate rm = mock(ResourceMgrDelegate.class);
    when(rm.getApplicationReport(TypeConverter.toYarn(oldJobId).getAppId()))
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    Assert.assertEquals(JobStatus.State.SUCCEEDED, jobStatus.getState());
  }
 
  @Test
  public void testJobReportFromHistoryServer() throws Exception {                                
    MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);                          
    when(historyServerProxy.getJobReport(getJobReportRequest())).thenReturn(                     
        getJobReportResponseFromHistoryServer());                                                
    ResourceMgrDelegate rm = mock(ResourceMgrDelegate.class);                                    
    when(rm.getApplicationReport(TypeConverter.toYarn(oldJobId).getAppId()))                     
    .thenReturn(null);                                                                       
    ClientServiceDelegate clientServiceDelegate = getClientServiceDelegate(                      
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    Assert.assertEquals(1.0f, jobStatus.getReduceProgress());                                    
  }
 
  @Test
  public void testCountersFromHistoryServer() throws Exception {                                
    MRClientProtocol historyServerProxy = mock(MRClientProtocol.class);                          
    when(historyServerProxy.getCounters(getCountersRequest())).thenReturn(                     
        getCountersResponseFromHistoryServer());
    ResourceMgrDelegate rm = mock(ResourceMgrDelegate.class);                                    
    when(rm.getApplicationReport(TypeConverter.toYarn(oldJobId).getAppId()))                     
        .thenReturn(null);                                                                       
    ClientServiceDelegate clientServiceDelegate = getClientServiceDelegate(                      
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    //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
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    //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(
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Related Classes of org.apache.hadoop.mapreduce.v2.api.MRClientProtocol

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  • org.apache.hadoop.mapred.ClientServiceDelegate
  • org.apache.hadoop.mapred.JobConf
  • org.apache.hadoop.mapred.TaskAttemptListenerImpl
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  • org.apache.hadoop.mapred.TestClientRedirect$AMService
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