Hello Rafael, To get the the size, in GB, occupied by buckets I need to manipulate a JSON key which contains a dot in its name: ```` - name: "radosgw.containers.objects.size" sample_type: "gauge" unit: "B" value_attribute: "rgw.main.size" <------------------------------------"rgw.main" is a JSON key, with a dot in its name, which belongs to "bucket.usage" JSON container url_path: "http://FQDN/admin/bucket?stats=True" module: "awsauth" authentication_object: "S3Auth" authentication_parameters: my_access_key,my_secret_key,FQDN user_id_attribute: "owner" project_id_attribute: "tenant" resource_id_attribute: "id" response_entries_key: "usage" ```` But with this dynamic pollster definition, I get the python error "KeyError: 'rgw' ". In this case, is there a specific syntax to define "value_attribute" or am I doing something the wrong way ? Jean-Francois