Run the following command: $ hdfs dfs -ls s3://doc-example-bucket/myfolder Your output might look like the following: An error occurred (AccessDenied) when calling the ListObjectsV2 operation: Access Denied To troubleshoot this issue, check if you have the required read permission by running the following command: $ aws s3 ls s3://doc-example-bucket/myfolder/ Be sure that the IAM policies attached to this role allow the required S3 operations on the source and destination buckets. Note: By default, applications inherit Amazon S3 access from the IAM role for the Amazon EC2 instance profile.

If the Amazon Elastic Compute Cloud (Amazon EC2) instance profile doesn’t have the required read and write permissions on the S3 buckets, you might get the “Access Denied” error. Then, check the following to resolve the 'Access Denied' error: Check the policy for the Amazon EC2 instance profile role If this command fails, confirm that you're using the most recent version of the AWS Command Line Interface (AWS CLI). Then, perform a sample request to the S3 path. Verify that the role has permissions to the Amazon S3 path by assuming the AWS Identity and Access Management (IAM) role using the AWS CLI. Confirm that your application is using the expected credentials, or assuming the expected role, and that it has access to the Amazon S3 path. If this command is successful, then the credentials or role specified in your application code are causing the 'Access Denied' error. Replace s3://doc-example-bucket/abc/ with your Amazon S3 path. Run the following command on the EMR cluster's master node. The error looks similar to the following message: java.io.IOException: .s3.model.AmazonS3Exception: Access Denied (Service: Amazon S3 Status Code: 403 Error Code: AccessDenied Request ID: 8B28722038047BAA S3 Extended Request ID: puwS77OKgMrvjd30/EY4CWlC/AuhOOSNsxfI8xQJXMd20c7sCq4ljjVKsX4AwS7iuo92C9m+GWY=), S3 Extended Request ID: puwS77OKgMrvjd30/EY4CWlC/AuhOOSNsxfI8xQJXMd20c7sCq4ljjVKsX4AwS7iuo92C9m+GWY= First, check the credentials or role specified in your application code If permissions are not configured correctly, you might get an 'Access Denied' error on Amazon EMR or Amazon Simple Storage Service (Amazon S3).

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