[Bug]: `occ files:scan --all` scans the same samba share again and again for every user

[PaulStogov]

⚠️ This issue respects the following points: ⚠️

• [X] This is a bug, not a question or a configuration/webserver/proxy issue.
• [X] This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• [X] Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• [X] I agree to follow Nextcloud's Code of Conduct.

Bug description

TIL that running occ files:scan --all command scans over and over again the same SMB share attached to our NC installation and being available for a number of users for every single user account.

I got the same pair of errors for every user connected to that one network share. Is seems like a huge overhead for me to scan the same network drive over and over again.

Steps to reproduce

1. Add an SMB/CIFS storage in "External storage" setting.
2. Make it "Available for" a number of users.
3. Run occ files:scan --all command

Expected behavior

One network connected share over anyhow protocol must be scanned one time only.

Installation method

Other Community project

Nextcloud Server version

29

Operating system

Other

PHP engine version

PHP 8.3

Web server

Apache (supported)

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• [X] Default user-backend (database)
• [ ] LDAP/ Active Directory
• [ ] SSO - SAML
• [ ] Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response

[PaulStogov]

Some illustrations. Scan time with the SMB share unavailable: Scan time with the SMB share connected: It took 7+ hrs more. And the contents of the SMB share is like this: So it is easily calculable five times overhead.

[SystemKeeper]

Depends on how the share is made available to the users. See https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/external_storage/auth_mechanisms.html#considerations-for-shared-storage

[PaulStogov]

Depends on how the share is made available to the users. See https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/external_storage/auth_mechanisms.html#considerations-for-shared-storage

Thank you very much for the reply, I read the doc you provided. But it seems for me that my case does not include "user specific authorization":

Or it should be "all people" checked?