我使用以下代码部署了一个tensorflow saved_model：
`model_path = 's3://' + sagemaker_session.default_bucket() + '/model/model.tar.gz'
from sagemaker.tensorflow.serving import Model
model = Model(model_data=model_path, role=role)
predictor = model.deploy(initial_instance_count=1, instance_type='ml.c5.xlarge')`
模型拍摄的图像尺寸为1,48,48,1
紧接着，当我尝试使用以下代码进行预测时：
`predictor.predict(preprocessed_faces_emo.tolist())`
我收到以下错误，并且我知道是什么问题。我正在sagemaker中使用Python 3.7版和Tensorflow 1.14.0版中的这段代码：
`---------------------------------------------------------------------------
ModelError Traceback (most recent call last)
<ipython-input-37-4dc04dc0679c> in <module>()
----> 1 predictor.predict(preprocessed_faces_emo.tolist())~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/sagemaker/predictor.py in predict(self, data, initial_args)
105
106 request_args = self._create_request_args(data, initial_args)
--> 107 response = self.sagemaker_session.sagemaker_runtime_client.invoke_endpoint(**request_args)
108 return self._handle_response(response)
109 ~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/botocore/client.py in _api_call(self, *args, **kwargs)
355 "%s() only accepts keyword arguments." % py_operation_name)
356 # The "self" in this scope is referring to the BaseClient.
--> 357 return self._make_api_call(operation_name, kwargs)
358
359 _api_call.__name__ = str(py_operation_name)~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/botocore/client.py in _make_api_call(self, operation_name, api_params)
659 error_code = parsed_response.get("Error", {}).get("Code")
660 error_class = self.exceptions.from_code(error_code)
--> 661 raise error_class(parsed_response, operation_name)
662 else:
663 return parsed_responseModelError: An error occurred (ModelError) when calling the InvokeEndpoint operation: Received server error (502) from model with message "<html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx/1.16.1</center>
</body>
</html>
". See https://us-east-1.console.aws.amazon.com/cloudwatch/home?region=us-east-1#logEventViewer:group=/aws/sagemaker/Endpoints/sagemaker-tensorflow-serving-2020-01-13-13-43-12-354 in account 970351559819 for more information.`
我遇到了同样的问题。解决了吗请帮助！