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amazon-web-servicesboto3aws-glue

Glue Boto Client -- NoCredentialsError


I've been running my Glue Jobs on a schedule for a few months. Last night my Glue Job failed due to botocore.exceptions.NoCredentialsError: Unable to locate credentials after calling bucket.objects.filter(Prefix=productionDirectory):

I am under the impression this is a result of not having defined a credentials file, but AWS Glue has always pulled credentials without issue. I just re-ran my job and everything worked perfectly. For reference, I define my Glue Client via: glue = boto3.client('glue'). Has anyone ever experienced this before? Is this just an edge-case?

Full Logs:

Traceback (most recent call last):
  File "/tmp/data-deployment", line 67, in <module>
    for obj in bucket.objects.filter(Prefix=productionDirectory):
  File "/home/spark/.local/lib/python3.7/site-packages/boto3/resources/collection.py", line 83, in __iter__
    for page in self.pages():
  File "/home/spark/.local/lib/python3.7/site-packages/boto3/resources/collection.py", line 166, in pages
    for page in pages:
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/paginate.py", line 255, in __iter__
    response = self._make_request(current_kwargs)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/paginate.py", line 332, in _make_request
    return self._method(**current_kwargs)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/client.py", line 316, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/client.py", line 613, in _make_api_call
    operation_model, request_dict, request_context)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/client.py", line 632, in _make_request
    return self._endpoint.make_request(operation_model, request_dict)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/endpoint.py", line 102, in make_request
    return self._send_request(request_dict, operation_model)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/endpoint.py", line 132, in _send_request
    request = self.create_request(request_dict, operation_model)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/endpoint.py", line 116, in create_request
    operation_name=operation_model.name)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/hooks.py", line 356, in emit
    return self._emitter.emit(aliased_event_name, **kwargs)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/hooks.py", line 228, in emit
    return self._emit(event_name, kwargs)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/hooks.py", line 211, in _emit
    response = handler(**kwargs)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/signers.py", line 90, in handler
    return self.sign(operation_name, request)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/signers.py", line 160, in sign
    auth.add_auth(request)
  File "/home/spark/.local/lib/python3.7/site-packages/botocore/auth.py", line 357, in add_auth
    raise NoCredentialsError
botocore.exceptions.NoCredentialsError: Unable to locate credentials

Edit/Update: This is a known bug. I've posted the mitigation strategy provided from AWS as an answer below.


Solution

  • Update: I reached out to AWS via Support and they responded. Apparently this is a known bug and issue. While they do not have a solution or ETA for solution, they do have a way to mitigate the issue. Information below:

    Thank you for reporting your issue to us and product team is aware of this intermittent issue. 
    They are working on resolution however, I do not have an ETA. 
    To mitigate this issue, increase the timeout / attempts to meta service request in your code:
    
    ####START######
    
    import os
    
    ####Increase meta service timeout and attempt########
    
    os.environ['AWS_METADATA_SERVICE_NUM_ATTEMPTS'] ="5"
    os.environ['AWS_METADATA_SERVICE_TIMEOUT'] ="30"
    
    #####################END#################