AWS-GO-SDK NOTES

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Aws-go-sdk

Problem

• EC2 ec2metadataerror occurs when accessing AWS services using role.
  Due to the S3 resources under the account too much, in order to quickly statistics the use of S3 under the account, with go to write a concurrent acquisition of S3 object information function, frequently the following error occurred:
  listing mystorage objects: NoCredentialProviders: no valid providers in chain
  , but it is normal for the AWS S3api List-object command to return at the command line. This is due to the process of establishing too many sessions, each time you build a session to the Ec2-metadata service to take temporary authentication, the frequency of authentication requests is too high to cause the exception.