Hello. 

We are using Ceph storage to test whether we can run the service by uploading 
and saving more than 40 billion files.

So I'd like to check the contents below.

1) Maximum number of Rados gateway objects that can be stored in one cluster 
using the bucket index
2) Maximum number of Rados gateway objects that can be stored in one bucket

Although we have referred to the limitations on the number of Rados gateway 
objects mentioned in existing documents, it seems theoretically unlimited

If you have operated the number of files at the level we think in actual 
services or products, we would appreciate it if you could share them.

Below are related documents and related settings values.

> Related documents
- https://documentation.suse.com/ses/5.5/html/ses-all/cha-ceph-gw.html
- 
https://www.ibm.com/docs/en/storage-ceph/6?topic=resharding-limitations-bucket-index
- https://docs.ceph.com/en/latest/dev/radosgw/bucket_index/

> Related config
- rgw_dynamic_resharding: true
- rgw_max_objs_per_shard: 100000
- rgw_max_dynamic_shards : 65521
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