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

Examples of org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId

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        LOG.info("Replacing MAP container " + allocated.getId());
        // allocated container was for a map
        String host = allocated.getNodeId().getHost();
        LinkedList<TaskAttemptId> list = mapsHostMapping.get(host);
        if (list != null && list.size() > 0) {
          TaskAttemptId tId = list.removeLast();
          if (maps.containsKey(tId)) {
            toBeReplaced = maps.remove(tId);
          }
        }
        else {
          TaskAttemptId tId = maps.keySet().iterator().next();
          toBeReplaced = maps.remove(tId);         
        }       
      }
      else if (PRIORITY_REDUCE.equals(priority)) {
        TaskAttemptId tId = reduces.keySet().iterator().next();
        toBeReplaced = reduces.remove(tId);   
      }
      LOG.info("Found replacement: " + toBeReplaced);
      return toBeReplaced;
    }
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    @SuppressWarnings("unchecked")
    private ContainerRequest assignToFailedMap(Container allocated) {
      //try to assign to earlierFailedMaps if present
      ContainerRequest assigned = null;
      while (assigned == null && earlierFailedMaps.size() > 0) {
        TaskAttemptId tId = earlierFailedMaps.removeFirst();     
        if (maps.containsKey(tId)) {
          assigned = maps.remove(tId);
          JobCounterUpdateEvent jce =
            new JobCounterUpdateEvent(assigned.attemptID.getTaskId().getJobId());
          jce.addCounterUpdate(JobCounter.OTHER_LOCAL_MAPS, 1);
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    private ContainerRequest assignToReduce(Container allocated) {
      ContainerRequest assigned = null;
      //try to assign to reduces if present
      if (assigned == null && reduces.size() > 0) {
        TaskAttemptId tId = reduces.keySet().iterator().next();
        assigned = reduces.remove(tId);
        LOG.info("Assigned to reduce");
      }
      return assigned;
    }
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        LinkedList<TaskAttemptId> list = mapsHostMapping.get(host);
        while (list != null && list.size() > 0) {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Host matched to the request list " + host);
          }
          TaskAttemptId tId = list.removeFirst();
          if (maps.containsKey(tId)) {
            ContainerRequest assigned = maps.remove(tId);
            containerAssigned(allocated, assigned);
            it.remove();
            JobCounterUpdateEvent jce =
              new JobCounterUpdateEvent(assigned.attemptID.getTaskId().getJobId());
            jce.addCounterUpdate(JobCounter.DATA_LOCAL_MAPS, 1);
            eventHandler.handle(jce);
            hostLocalAssigned++;
            if (LOG.isDebugEnabled()) {
              LOG.debug("Assigned based on host match " + host);
            }
            break;
          }
        }
      }
     
      // try to match all rack local
      it = allocatedContainers.iterator();
      while(it.hasNext() && maps.size() > 0){
        Container allocated = it.next();
        Priority priority = allocated.getPriority();
        assert PRIORITY_MAP.equals(priority);
        // "if (maps.containsKey(tId))" below should be almost always true.
        // hence this while loop would almost always have O(1) complexity
        String host = allocated.getNodeId().getHost();
        String rack = RackResolver.resolve(host).getNetworkLocation();
        LinkedList<TaskAttemptId> list = mapsRackMapping.get(rack);
        while (list != null && list.size() > 0) {
          TaskAttemptId tId = list.removeFirst();
          if (maps.containsKey(tId)) {
            ContainerRequest assigned = maps.remove(tId);
            containerAssigned(allocated, assigned);
            it.remove();
            JobCounterUpdateEvent jce =
              new JobCounterUpdateEvent(assigned.attemptID.getTaskId().getJobId());
            jce.addCounterUpdate(JobCounter.RACK_LOCAL_MAPS, 1);
            eventHandler.handle(jce);
            rackLocalAssigned++;
            if (LOG.isDebugEnabled()) {
              LOG.debug("Assigned based on rack match " + rack);
            }
            break;
          }
        }
      }
     
      // assign remaining
      it = allocatedContainers.iterator();
      while(it.hasNext() && maps.size() > 0){
        Container allocated = it.next();
        Priority priority = allocated.getPriority();
        assert PRIORITY_MAP.equals(priority);
        TaskAttemptId tId = maps.keySet().iterator().next();
        ContainerRequest assigned = maps.remove(tId);
        containerAssigned(allocated, assigned);
        it.remove();
        JobCounterUpdateEvent jce =
          new JobCounterUpdateEvent(assigned.attemptID.getTaskId().getJobId());
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    }

    @Override
    public GetTaskAttemptReportResponse getTaskAttemptReport(
        GetTaskAttemptReportRequest request) throws IOException {
      TaskAttemptId taskAttemptId = request.getTaskAttemptId();
      Job job = verifyAndGetJob(taskAttemptId.getTaskId().getJobId());
      GetTaskAttemptReportResponse response = recordFactory.newRecordInstance(GetTaskAttemptReportResponse.class);
      response.setTaskAttemptReport(job.getTask(taskAttemptId.getTaskId()).getAttempt(taskAttemptId).getReport());
      return response;
    }
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    }

    @Override
    public GetDiagnosticsResponse getDiagnostics(GetDiagnosticsRequest request)
        throws IOException {
      TaskAttemptId taskAttemptId = request.getTaskAttemptId();

      Job job = verifyAndGetJob(taskAttemptId.getTaskId().getJobId());

      GetDiagnosticsResponse response = recordFactory.newRecordInstance(GetDiagnosticsResponse.class);
      response.addAllDiagnostics(job.getTask(taskAttemptId.getTaskId()).getAttempt(taskAttemptId).getDiagnostics());
      return response;
    }
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    completedJob =
      new CompletedJob(conf, jobId, fulleHistoryPath, loadTasks, "user",
          info, jobAclsManager);
    TaskId mt1Id = MRBuilderUtils.newTaskId(jobId, 0, TaskType.MAP);
    TaskId rt1Id = MRBuilderUtils.newTaskId(jobId, 0, TaskType.REDUCE);
    TaskAttemptId mta1Id = MRBuilderUtils.newTaskAttemptId(mt1Id, 0);
    TaskAttemptId rta1Id = MRBuilderUtils.newTaskAttemptId(rt1Id, 0);
   
    Task mt1 = completedJob.getTask(mt1Id);
    Task rt1 = completedJob.getTask(rt1Id);
   
    TaskAttempt mta1 = mt1.getAttempt(mta1Id);
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    JobId  jobId = MRBuilderUtils.newJobId(1L, 1, 1);
 
    final TaskId taskId1 = MRBuilderUtils.newTaskId(jobId, 1, TaskType.REDUCE);
    final TaskId taskId2 = MRBuilderUtils.newTaskId(jobId, 2, TaskType.REDUCE);
 
    final TaskAttemptId taskAttemptId1  = MRBuilderUtils.
        newTaskAttemptId(taskId1, 1);
    final TaskAttemptId taskAttemptId2  = MRBuilderUtils.
        newTaskAttemptId(taskId2, 2);
 
    final TaskAttempt taskAttempt1 = mock(TaskAttempt.class);
    final TaskAttempt taskAttempt2 = mock(TaskAttempt.class);
 
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    MRApps.toTaskID("task_0_0000_x_000000");
  }

  //TODO_get.set
  @Test public void testTaskAttemptIDtoString() {
    TaskAttemptId taid = RecordFactoryProvider.getRecordFactory(null).newRecordInstance(TaskAttemptId.class);
    taid.setTaskId(RecordFactoryProvider.getRecordFactory(null).newRecordInstance(TaskId.class));
    taid.getTaskId().setTaskType(TaskType.MAP);
    taid.getTaskId().setJobId(RecordFactoryProvider.getRecordFactory(null).newRecordInstance(JobId.class));
    taid.getTaskId().getJobId().setAppId(RecordFactoryProvider.getRecordFactory(null).newRecordInstance(ApplicationId.class));
    assertEquals("attempt_0_0000_m_000000_0", MRApps.toString(taid));
  }
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    taid.getTaskId().getJobId().setAppId(RecordFactoryProvider.getRecordFactory(null).newRecordInstance(ApplicationId.class));
    assertEquals("attempt_0_0000_m_000000_0", MRApps.toString(taid));
  }

  @Test public void testToTaskAttemptID() {
    TaskAttemptId taid = MRApps.toTaskAttemptID("attempt_0_1_m_2_3");
    assertEquals(0, taid.getTaskId().getJobId().getAppId().getClusterTimestamp());
    assertEquals(1, taid.getTaskId().getJobId().getAppId().getId());
    assertEquals(1, taid.getTaskId().getJobId().getId());
    assertEquals(2, taid.getTaskId().getId());
    assertEquals(3, taid.getId());
  }
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