Amazon web services 无法从笔记本实例读取S3中的TFR记录

我尝试从Sage Maker笔记本实例中读取S3中的tfrecords，如下所示：

上述代码失败，出现错误：

---------------------------------------------------------------------------
NotFoundError                             Traceback (most recent call last)
<ipython-input-7-770c0aef6d7b> in <module>()
      1 from tensorflow.python.lib.io import file_io
----> 2 print(file_io.stat('s3://<my-bucket>/data/DEMO-mnist/train.tfrecords'))

~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/tensorflow/python/lib/io/file_io.py in stat(filename)
    551   with errors.raise_exception_on_not_ok_status() as status:
    552     pywrap_tensorflow.Stat(compat.as_bytes(filename), file_statistics, status)
--> 553     return file_statistics

~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py in __exit__(self, type_arg, value_arg, traceback_arg)
    517             None, None,
    518             compat.as_text(c_api.TF_Message(self.status.status)),
--> 519             c_api.TF_GetCode(self.status.status))
    520     # Delete the underlying status object from memory otherwise it stays alive
    521     # as there is a reference to status from this from the traceback due to

NotFoundError: Object s3://<my-bucket>/data/DEMO-mnist/train.tfrecords does not exist

但是，如果我在不使用SageMaker的情况下从常规EC2实例运行，同样的代码也可以正常工作

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笔记本实例使用的IAM角色具有完全的S3访问权限。

我在us-west-2中重现了这个问题

但是在我手动导出环境变量AWS_REGION='us-west-2'之后，它就工作了

此外，我还尝试不出口AWS_地区，并在us-east-1桶上进行了测试。它也起作用了

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因此，由于某些原因，aws配置文件中的区域信息无法检索和使用。如果未使用环境变量AWS_REGION，它将始终为us-east-1，默认值。

您是否检查了S3 bucket和notebook实例是否在同一区域？您还可以粘贴附加了执行角色的策略吗

---------------------------------------------------------------------------
NotFoundError                             Traceback (most recent call last)
<ipython-input-7-770c0aef6d7b> in <module>()
      1 from tensorflow.python.lib.io import file_io
----> 2 print(file_io.stat('s3://<my-bucket>/data/DEMO-mnist/train.tfrecords'))

~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/tensorflow/python/lib/io/file_io.py in stat(filename)
    551   with errors.raise_exception_on_not_ok_status() as status:
    552     pywrap_tensorflow.Stat(compat.as_bytes(filename), file_statistics, status)
--> 553     return file_statistics

~/anaconda3/envs/tensorflow_p36/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py in __exit__(self, type_arg, value_arg, traceback_arg)
    517             None, None,
    518             compat.as_text(c_api.TF_Message(self.status.status)),
--> 519             c_api.TF_GetCode(self.status.status))
    520     # Delete the underlying status object from memory otherwise it stays alive
    521     # as there is a reference to status from this from the traceback due to

NotFoundError: Object s3://<my-bucket>/data/DEMO-mnist/train.tfrecords does not exist