Understanding MapR Object Store Bucket Policy

Because the Amazon S3 API standard supports the concept of bucket policies to allow the owner of a bucket to grant access for other users to share the bucket, you can create buckets using the S3 interface and thereby become their owner.

As owner, you have full access to perform any operation on the bucket and on data objects within the bucket, and you can grant other users access to your bucket using the S3 Policies API.