Package com.google.appengine.tools.mapreduce.impl.shardedjob

Examples of com.google.appengine.tools.mapreduce.impl.shardedjob.ShardedJobService

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    public void completed(Iterator<TestTask> results) {}
  }

  @Test
  public void testCleanupJob() throws Exception {
    ShardedJobService jobService = ShardedJobServiceFactory.getShardedJobService();
    assertTrue(jobService.cleanupJob("testCleanupJob")); // No such job yet
    ShardedJobSettings settings = new ShardedJobSettings.Builder().build();
    ShardedJobController<TestTask> controller = new DummyWorkerController();
    byte[] bytes = new byte[1024 * 1024];
    new Random().nextBytes(bytes);
    TestTask s1 = new TestTask(0, 2, 2, 2, bytes);
    TestTask s2 = new TestTask(1, 2, 2, 1);
    jobService.startJob("testCleanupJob", ImmutableList.of(s1, s2), controller, settings);
    assertFalse(jobService.cleanupJob("testCleanupJob"));
    executeTasksUntilEmpty();
    DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
    assertEquals(3, ds.prepare(new Query()).countEntities(FetchOptions.Builder.withDefaults()));
    assertTrue(jobService.cleanupJob("testCleanupJob"));
    executeTasksUntilEmpty();
    assertEquals(0, ds.prepare(new Query()).countEntities(FetchOptions.Builder.withDefaults()));
  }
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  }

  // Tests that an job that has just been initialized returns a reasonable job detail.
  @Test
  public void testGetJobDetail_empty() throws Exception {
    ShardedJobService jobService = ShardedJobServiceFactory.getShardedJobService();
    ShardedJobSettings settings = new ShardedJobSettings.Builder().build();
    ShardedJobController<TestTask> controller = new DummyWorkerController();
    jobService.startJob("testGetJobDetail_empty", ImmutableList.<TestTask>of(), controller,
        settings);

    JSONObject result = StatusHandler.handleGetJobDetail("testGetJobDetail_empty");
    assertEquals("testGetJobDetail_empty", result.getString("mapreduce_id"));
    assertEquals(0, result.getJSONArray("shards").length());
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  }

  // Tests that a populated job (with a couple of shards) generates a reasonable job detail.
  @Test
  public void testGetJobDetail_populated() throws Exception {
    ShardedJobService jobService = ShardedJobServiceFactory.getShardedJobService();
    ShardedJobSettings settings = new ShardedJobSettings.Builder().build();
    ShardedJobController<TestTask> controller = new DummyWorkerController();
    TestTask s1 = new TestTask(0, 2, 2, 2);
    TestTask s2 = new TestTask(1, 2, 2, 1);
    jobService.startJob("testGetJobDetail_populated", ImmutableList.of(s1, s2), controller,
        settings);
    ShardedJobState state = jobService.getJobState("testGetJobDetail_populated");
    assertEquals(2, state.getActiveTaskCount());
    assertEquals(2, state.getTotalTaskCount());
    assertEquals(new Status(Status.StatusCode.RUNNING), state.getStatus());
    JSONObject jobDetail = StatusHandler.handleGetJobDetail("testGetJobDetail_populated");
    assertNotNull(jobDetail);
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  /**
   * Handle the get_job_detail AJAX command.
   */
  @VisibleForTesting
  static JSONObject handleGetJobDetail(String jobId) {
    ShardedJobService shardedJobService = ShardedJobServiceFactory.getShardedJobService();
    ShardedJobState state = shardedJobService.getJobState(jobId);
    if (state == null) {
      return null;
    }
    JSONObject jobObject = new JSONObject();
    try {
      jobObject.put("name", jobId); // For display
      jobObject.put("mapreduce_id", jobId); // This is the sharedJobId but it needs be be called
                                            // mapreduce_id for python compatibility.
      jobObject.put("start_timestamp_ms", state.getStartTimeMillis());

      if (state.getStatus().isActive()) {
        jobObject.put("active", true);
        jobObject.put("updated_timestamp_ms", System.currentTimeMillis());
      } else {
        jobObject.put("active", false);
        jobObject.put("result_status", String.valueOf(state.getStatus().getStatusCode()));
        jobObject.put("updated_timestamp_ms", state.getMostRecentUpdateTimeMillis());
      }
      jobObject.put("shards", state.getTotalTaskCount());
      jobObject.put("active_shards", state.getActiveTaskCount());

      JSONObject mapperParams = new JSONObject();
      mapperParams.put("Shards completed",
          state.getTotalTaskCount() - state.getActiveTaskCount());
      mapperParams.put("Shards active", state.getActiveTaskCount());
      mapperParams.put("Shards total", state.getTotalTaskCount());
      JSONObject mapperSpec = new JSONObject();
      mapperSpec.put("mapper_params", mapperParams);
      jobObject.put("mapper_spec", mapperSpec);

      JSONArray shardArray = new JSONArray();
      Counters totalCounters = new CountersImpl();
      int i = 0;
      long[] workerCallCounts = new long[state.getTotalTaskCount()];
      Iterator<IncrementalTaskState<IncrementalTask>> tasks = shardedJobService.lookupTasks(state);
      while (tasks.hasNext()) {
        IncrementalTaskState<?> taskState = tasks.next();
        JSONObject shardObject = new JSONObject();
        shardObject.put("shard_number", i);
        shardObject.put("shard_description", taskState.getTaskId());
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  }

  // Tests that an job that has just been initialized returns a reasonable
  // job detail.
  public void testGetJobDetail_empty() throws Exception {
    ShardedJobService jobService = ShardedJobServiceFactory.getShardedJobService();
    ShardedJobSettings settings = new ShardedJobSettings();
    ShardedJobController<TestWorkerTask, WorkerResult<Integer>>
    controller = new DummyWorkerController("Namey");
    jobService.startJob(
        "testGetJobDetail_empty", ImmutableList.<TestWorkerTask>of(), controller, settings);


    JSONObject result = StatusHandler.handleGetJobDetail("testGetJobDetail_empty");
    assertEquals("testGetJobDetail_empty", result.getString("mapreduce_id"));
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  }

  // Tests that a populated job (with a couple of shards) generates a reasonable
  // job detail.
  public void testGetJobDetail_populated() throws Exception {
    ShardedJobService jobService = ShardedJobServiceFactory.getShardedJobService();
    ShardedJobSettings settings = new ShardedJobSettings();
    ShardedJobController<TestWorkerTask, WorkerResult<Integer>> controller =
        new DummyWorkerController("Namey");
    TestWorkerTask three = new TestWorkerTask(0, 3, null);
    TestWorkerTask two = new TestWorkerTask(1, 2, null);
    TestWorkerTask one = new TestWorkerTask(0, 1, three);
    jobService.startJob(
        "testGetJobDetail_populated", ImmutableList.of(one, two), controller, settings);
    ShardedJobState<?, WorkerResult<? extends Serializable>> state =
        jobService.getJobState("testGetJobDetail_populated");
    assertEquals(2, state.getActiveTaskCount());
    assertEquals(new CountersImpl(), state.getAggregateResult().getCounters());
    assertEquals(2, state.getTotalTaskCount());
    assertEquals(Status.RUNNING, state.getStatus());
    JSONObject jobDetail = StatusHandler.handleGetJobDetail("testGetJobDetail_populated");
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Related Classes of com.google.appengine.tools.mapreduce.impl.shardedjob.ShardedJobService

  • com.google.appengine.tools.mapreduce.impl.handlers.StatusHandler
  • com.google.appengine.tools.mapreduce.impl.handlers.StatusHandlerTest
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