Ceph » CephFS

1) The subvolumegroup ls lists `_index` directory as subvolumegroup

# bin/ceph fs subvolumegroup ls a
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2022-05-25T12:28:24.565+0530 7f2eb7c03700 -1 WARNING: all dangerous and experimental features are enabled.
2022-05-25T12:28:24.573+0530 7f2eb7c03700 -1 WARNING: all dangerous and experimental features are enabled.
[
    {
        "name": "_nogroup" 
    },
    {
        "name": "_index" 
    }
]
root@kotresh-T490s:~/sandbox/kotresh-ceph/ceph/build# 

The `_index` directory should be filtered.

2) The subvolume ls with internal directories as group_name lists contents inside.

# bin/ceph fs subvolume ls a --group-name=_index
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2022-05-25T12:31:07.125+0530 7f78dac3e700 -1 WARNING: all dangerous and experimental features are enabled.
2022-05-25T12:31:07.133+0530 7f78dac3e700 -1 WARNING: all dangerous and experimental features are enabled.
[
    {
        "name": "clone" 
    }
]

# bin/ceph fs subvolume ls a --group-name=_deleting
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2022-05-25T12:31:27.209+0530 7f151262e700 -1 WARNING: all dangerous and experimental features are enabled.
2022-05-25T12:31:27.217+0530 7f151262e700 -1 WARNING: all dangerous and experimental features are enabled.
[]

This should throw proper error.