[Samba] nextcloud files_external:notify: "Due to limitations of linux based SMB servers, this feature only works reliably on Windows SMB servers"

[Jeremy Allison]

On Wed, May 13, 2020 at 09:06:29PM +0200, Jelle de Jong via samba wrote:
> Hello everybody,
> 
> I am wondering if anyone know more about the fact that the official
> nextcloud documentation states it does not work with linux based smb servers
> for notify support?
> 
> https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/external_storage/smb.html
> 
> "Due to limitations of linux based SMB servers, this feature only works
> reliably on Windows SMB servers."

If all accesses to the underlying SMB filestore are via
SMB to Samba, then we are as reliable as a Windows SMB
server as we handle everything internally via Samba and
don't depend on the underlying OS change notify.

They may be talking about scenarios where there are
other protocols or local process access to the underlying
filestore simultaneously to Samba. In that case we have
to depend on notification via the underlying OS change
notify implementation, which is sometimes unreliable.

Hope this helps !

Jeremy.