- bucket: Holds a mapping between bucket name and bucket instance id
- bucket.instance: Holds bucket instance information[2]
-Every metadata entry is kept on a single rados object.
-See below for implementation defails.
+Every metadata entry is kept on a single rados object. See below for implementation details.
Note that the metadata is not indexed. When listing a metadata section we do a
rados pgls operation on the containing pool.