Package org.apache.hadoop.mapreduce.v2.app

Examples of org.apache.hadoop.mapreduce.v2.app.MockAppContext

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    WebAppTests.testPage(SingleCounterPage.class, AppContext.class,
                         appContext, params);
  }

  @Test public void testTaskCountersView() {
    AppContext appContext = new MockAppContext(0, 1, 1, 1);
    Map<String, String> params = getTaskParams(appContext);
    WebAppTests.testPage(CountersPage.class, AppContext.class,
                         appContext, params);
  }
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    WebAppTests.testPage(CountersPage.class, AppContext.class,
                         appContext, params);
  }

  @Test public void testSingleTaskCounterView() {
    AppContext appContext = new MockAppContext(0, 1, 1, 2);
    Map<String, String> params = getTaskParams(appContext);
    params.put(AMParams.COUNTER_GROUP,
        "org.apache.hadoop.mapreduce.FileSystemCounter");
    params.put(AMParams.COUNTER_NAME, "HDFS_WRITE_OPS");
   
    // remove counters from one task attempt
    // to test handling of missing counters
    TaskId taskID = MRApps.toTaskID(params.get(AMParams.TASK_ID));
    Job job = appContext.getJob(taskID.getJobId());
    Task task = job.getTask(taskID);
    TaskAttempt attempt = task.getAttempts().values().iterator().next();
    attempt.getReport().setCounters(null);
   
    WebAppTests.testPage(SingleCounterPage.class, AppContext.class,
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      app.verifyCompleted();
    }
  }

  public static void main(String[] args) {
    WebApps.$for("yarn", AppContext.class, new MockAppContext(0, 8, 88, 4)).
        at(58888).inDevMode().start(new AMWebApp()).joinThread();
  }
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    public void transition(TaskAttemptImpl taskAttempt,
        TaskAttemptEvent event) {
      TaskAttemptContext taskContext =
        new TaskAttemptContextImpl(taskAttempt.conf,
            TypeConverter.fromYarn(taskAttempt.attemptId));
      taskAttempt.eventHandler.handle(new CommitterTaskAbortEvent(
          taskAttempt.attemptId, taskContext));
    }
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    conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
    Job job = app.submit(conf);
    app.waitForState(job, JobState.FAILED);
    Map<TaskId,Task> tasks = job.getTasks();
    Assert.assertEquals("Num tasks is not correct", 1, tasks.size());
    Task task = tasks.values().iterator().next();
    Assert.assertEquals("Task state not correct", TaskState.FAILED,
        task.getReport().getTaskState());
    Map<TaskAttemptId, TaskAttempt> attempts =
        tasks.values().iterator().next().getAttempts();
    Assert.assertEquals("Num attempts is not correct", maxAttempts,
        attempts.size());
    for (TaskAttempt attempt : attempts.values()) {
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    conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
    Job job = app.submit(conf);
    app.waitForState(job, JobState.RUNNING);
    Map<TaskId, Task> tasks = job.getTasks();
    Assert.assertEquals("Num tasks is not correct", 1, tasks.size());
    Task task = tasks.values().iterator().next();
    app.waitForState(task, TaskState.SCHEDULED);
    Map<TaskAttemptId, TaskAttempt> attempts = tasks.values().iterator()
        .next().getAttempts();
    Assert.assertEquals("Num attempts is not correct", maxAttempts, attempts
        .size());
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    app.waitForState(task, TaskState.SCHEDULED);
    Map<TaskAttemptId, TaskAttempt> attempts = tasks.values().iterator()
        .next().getAttempts();
    Assert.assertEquals("Num attempts is not correct", maxAttempts, attempts
        .size());
    TaskAttempt attempt = attempts.values().iterator().next();
    app.waitForInternalState((TaskAttemptImpl) attempt,
        TaskAttemptStateInternal.ASSIGNED);
    app.getDispatcher().getEventHandler().handle(
        new TaskAttemptEvent(attempt.getID(),
            TaskAttemptEventType.TA_CONTAINER_COMPLETED));
    app.waitForState(job, JobState.FAILED);
  }
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      LOG.debug("Processing " + event.getTaskAttemptID() + " of type "
          + event.getType());
    }
    writeLock.lock();
    try {
      final TaskAttemptStateInternal oldState = getInternalState()  ;
      try {
        stateMachine.doTransition(event.getType(), event);
      } catch (InvalidStateTransitonException e) {
        LOG.error("Can't handle this event at current state for "
            + this.attemptId, e);
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        recoveredState = TaskAttemptState.KILLED.toString();
        needToClean = true;
      }
    }

    TaskAttemptStateInternal attemptState;
    if (TaskAttemptState.SUCCEEDED.toString().equals(recoveredState)) {
      attemptState = TaskAttemptStateInternal.SUCCEEDED;
      reportedStatus.taskState = TaskAttemptState.SUCCEEDED;
      eventHandler.handle(createJobCounterUpdateEventTASucceeded(this));
      logAttemptFinishedEvent(attemptState);
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  }

  private static JobCounterUpdateEvent createJobCounterUpdateEventTASucceeded(
      TaskAttemptImpl taskAttempt) {
    TaskId taskId = taskAttempt.attemptId.getTaskId();
    JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskId.getJobId());
    updateMillisCounters(jce, taskAttempt);
    return jce;
  }
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Related Classes of org.apache.hadoop.mapreduce.v2.app.MockAppContext

  • org.apache.hadoop.conf.Configuration
  • org.apache.hadoop.fs.FileSystem
  • org.apache.hadoop.fs.FSDataInputStream
  • org.apache.hadoop.fs.Path
  • org.apache.hadoop.fs.permission.FsPermission
  • org.apache.hadoop.mapred.JobConf
  • org.apache.hadoop.mapred.TaskAttemptListenerImpl
  • org.apache.hadoop.mapred.TestClientRedirect
  • org.apache.hadoop.mapred.TestClientRedirect$AMService
  • org.apache.hadoop.mapred.TestClientRedirect$HistoryService
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