[Samba] Success with vfs_ceph_snapshots?

Bailey Allison ballison at 45drives.com
Sun Sep 18 17:18:19 UTC 2022 

Good afternoon,

 

I am wondering if anyone out there has had success with the vfs_ceph_snapshots module for exposing CephFS snaps as shadowcopy on samba shares?

 

As of current we’ve been trying with both Ubuntu 20.04 (samba version 4.13.17) and Rocky Linux (samba version 4.15.5), and are seeing completely different results on both.

 

On the Ubuntu machines when connecting to the samba share via a client there is absolutely no snapshots showing up via shadowcopy,

 

On the Rocky Linux machines when connecting to the samba share via a client the snapshots do actually appear, however when trying to restore nothing occurs, and when opening the snapshot to view it is completely empty.

 

As a workaround we’ve actually been able to use the traditional vfs_shadow_copy2 which works fine, but it would be nice to make use of the tool designed specifically for CephFS 😊

 

I’ve attached the share definitions for both Ubuntu 20.04 and Rocky Linux below:

 

Ubuntu 20.04

 

[share2]

        guest ok = Yes

        path = /mnt/cephfs/share2

        read only = No

        vfs objects = ceph_snapshots

 

Rocky Linux 

 

[share2]

        guest ok = Yes

        path = /mnt/cephfs/share2

        read only = No

        vfs objects = ceph_snapshots

 

Setting the log level to 5 for vfs we’ve been able to capture these outputs from both machines when checking the snapshots from a client

 

Ubuntu 20.04

 

[2022/09/18 17:14:47.195796,  3] ../../source3/smbd/vfs.c:115(vfs_init_default)

  Initialising default vfs hooks

[2022/09/18 17:14:47.195847,  3] ../../source3/smbd/vfs.c:141(vfs_init_custom)

  Initialising custom vfs hooks from [/[Default VFS]/]

  Successfully loaded vfs module [/[Default VFS]/] with the new modules system

[2022/09/18 17:14:47.195870,  3] ../../source3/smbd/vfs.c:141(vfs_init_custom)

  Initialising custom vfs hooks from [ceph_snapshots]

[2022/09/18 17:14:47.195884,  5] ../../source3/smbd/vfs.c:180(vfs_init_custom)

  vfs module [ceph_snapshots] not loaded - trying to load...

[2022/09/18 17:14:47.198105,  5] ../../source3/smbd/vfs.c:105(smb_register_vfs)

  Successfully added vfs backend 'ceph_snapshots'

  Successfully loaded vfs module [ceph_snapshots] with the new modules system

[2022/09/18 17:14:47.199435,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.199508,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.199582,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 17:14:47.200594,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 17:14:47.201484,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 17:14:47.204307,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 17:14:47.205259,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 17:14:47.206008,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 17:14:47.214894,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.214937,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.214957,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.214987,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.215025,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.216447,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.216494,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.216524,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.216546,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.216570,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.231976,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.232031,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.232052,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.232074,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.232099,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.233666,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.233705,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.233724,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.233746,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.233770,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.234561,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap/snap2

[2022/09/18 17:14:47.235842,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.235883,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.235902,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.235924,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.235948,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.237562,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.237603,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.237622,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.237644,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.237668,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.239681,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.239739,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.239792,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.239819,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.239845,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.241101,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.241140,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.241159,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.241180,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.241204,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.241898,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap/snap1

[2022/09/18 17:14:47.242661,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.242692,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.242711,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.242732,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.242755,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 17:14:47.244109,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 17:14:47.244161,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.244183,  5] ../../source3/smbd/vfs.c:1495(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 17:14:47.244204,  4] ../../source3/smbd/vfs.c:939(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 17:14:47.244233,  5] ../../source3/smbd/vfs.c:1001(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

 

Rocky Linux

 

[2022/09/18 13:15:45.136440,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.136577,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.136665,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.136702,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.137597,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.139275,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.139350,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.139469,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.142276,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.142342,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.143007,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

[2022/09/18 13:15:45.144558,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.144616,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.144670,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.144702,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.144721,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.144749,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.144952,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.146342,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.146398,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.146439,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.146489,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.146519,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.146744,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.146945,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.149138,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.149193,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.154988,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.155064,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.155104,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.155148,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.155198,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.157090,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.157145,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.157171,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.157453,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.157488,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.159067,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap/snap2

[2022/09/18 13:15:45.159172,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.159213,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.159438,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.159725,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.159763,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.161262,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap/snap2

[2022/09/18 13:15:45.161323,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.161355,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.161373,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.161398,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.161424,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.163445,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.163501,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.163527,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.163553,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.163582,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.165093,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.165162,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.165201,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.165271,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.165328,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.166963,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap/snap2

[2022/09/18 13:15:45.167025,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to ./.snap

[2022/09/18 13:15:45.167054,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.167082,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2/.snap

[2022/09/18 13:15:45.167106,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.167138,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.169972,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.170029,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.177056,  4] ../../source3/smbd/vfs.c:938(vfs_ChDir)

  vfs_ChDir to /mnt/cephfs/share2

[2022/09/18 13:15:45.177117,  5] ../../source3/smbd/vfs.c:1000(vfs_ChDir)

  vfs_ChDir: vfs_ChDir got /mnt/cephfs/share2

[2022/09/18 13:15:45.177213,  5] ../../source3/smbd/vfs.c:1334(check_reduced_name)

  check_reduced_name: . reduced to /mnt/cephfs/share2

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