code: @Override
    public void launchTask(final ExecutorDriver driver, final TaskInfo task) {
      driver.sendStatusUpdate(TaskStatus.newBuilder()
          .setTaskId(TaskID.newBuilder().setValue(this.mesosExecutorId).build())
          .setState(TaskState.TASK_STARTING)
          .setSlaveId(task.getSlaveId())
          .setMessage(this.mesosRemoteManager.getMyIdentifier())
          .build());
    }
docs: We assume a long-running Mesos Task that manages a REEF Evaluator process, leveraging Mesos Executor's interface.