message: fix sleep when waiting for training chunks to finish writing
diff: @@ -111,8 +111,9 @@ def train_loop():
  while True:
  num_chunks = sum([1 if fname.endswith('.gz') else 0 for fname in os.listdir(TRAINING_DIRECTORY)])
  if num_chunks != 0:
  - break
  time.sleep(300)
  + break
  + time.sleep(120)
  # Take a training step.
  bigarg = train_cmd.format(model_num, model_num+1, MODEL_DIRECTORY, TF_LOG_DIR, TRAINING_DIRECTORY)
  