Hello, we are running a ceph cluster + rgw on luminous 12.2.12 that serves as a S3 compatible storage. We have noticed some buckets where the `rgw.none` from the output of `radosgw-admin bucket stats` shows extremely large value for `num_objects`, which is not convincible. It does look like an underflow by subtracting a positive number from 0 and then the value is interpreted and shown as an uint64. For example, ``` # radosgw-admin bucket stats --bucket redacted { "bucket": "redacted", ........... "usage": { "rgw.none": { "size": 0, "size_actual": 0, "size_utilized": 0, "size_kb": 0, "size_kb_actual": 0, "size_kb_utilized": 0, "num_objects": 18446744073709551607 }, "rgw.main": { "size": 1687971465874, "size_actual": 1696692400128, "size_utilized": 1687971465874, "size_kb": 1648409635, "size_kb_actual": 1656926172, "size_kb_utilized": 1648409635, "num_objects": 4290147 }, "rgw.multimeta": { "size": 0, "size_actual": 0, "size_utilized": 0, "size_kb": 0, "size_kb_actual": 0, "size_kb_utilized": 0, "num_objects": 75 } }, "bucket_quota": { "enabled": false, "check_on_raw": false, "max_size": -1, "max_size_kb": 0, "max_objects": -1 } } ``` We did find a few reports on this issue, eg. http://lists.ceph.com/pipermail/ceph-users-ceph.com/2019-November/037531.htm.... Do we know any use patterns that can lead object count to become that large? Also is there a way to accurately collect the object count for each bucket in the cluster, as we would like to use it for management purpose.