[英]Model pkl not found by SageMaker inference
我有以下 model.tar.gz 结构(如此处所述):
model
|- cuts34.pkl
|- code
|- inference.py
|- requirements.txt
我在本地部署我训练过的模型(用于推理),如下所示:
class Predictor(RealTimePredictor):
def __init__(self, endpoint_name, sagemaker_session):
super().__init__(endpoint_name,
sagemaker_session=sagemaker_session,
serializer=None,
deserializer=None,
content_type='text/plain'
)
entry_point = './model/code/inference.py'
model_data = 'model.tar.gz'
model = PyTorchModel(model_data=model_data,
framework_version="1.5.0",
py_version="py3",
role=role,
entry_point=entry_point
)
serverless_config = ServerlessInferenceConfig()
predictor = model.deploy(instance_type="local", initial_instance_count=1)
inference.py
中的model_fn
如下所示:
def model_fn(model_dir):
logger.info("*** Loading the model ...")
path = os.path.join(model_dir, "cuts34.pkl")
learner = load_learner(path)
return learner
当调用sagemaker.local.LocalSagemakerRuntimeClient()
时
response = runtime.invoke_endpoint(
EndpointName=endpoint_name,
ContentType=content_type,
Body=payload
)
我不断收到以下错误:
b'[Errno 2] No such file or directory: \'/.sagemaker/mms/models/model/cuts34.pkl\'\nTraceback (most recent call last):\n File "/opt/conda/lib/python3.6/site-packages/sagemaker_inference/transformer.py", line 110, in transform\n self.validate_and_initialize(model_dir=model_dir)\n File "/opt/conda/lib/python3.6/site-packages/sagemaker_inference/transformer.py", line 158, in validate_and_initialize\n self._model = self._model_fn(model_dir)\n File "/opt/ml/model/code/inference.py", line 265, in model_fn\n learner = torch.load(path, map_location=device)\n File "/opt/conda/lib/python3.6/site-packages/torch/serialization.py", line 584, in load\n with _open_file_like(f, \'rb\') as opened_file:\n File "/opt/conda/lib/python3.6/site-packages/torch/serialization.py", line 234, in _open_file_like\n return _open_file(name_or_buffer, mode)\n File "/opt/conda/lib/python3.6/site-packages/torch/serialization.py", line 215, in __init__\n super(_open_file, self).__init__(open(name, mode))\nFileNotFoundError: [Errno 2] No such file or directory: \'/.sagemaker/mms/models/model/cuts34.pkl\'\n'
似乎找不到模型 pkl。 关于为什么不的任何想法?
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