[Samba] Samba and BTRFS server-side copy

[Saint Germain]

On Thu, 3 Nov 2016 20:41:14 +0100, Achim Gottinger via samba
<samba at lists.samba.org> wrote :

> Am 02.11.2016 um 20:32 schrieb Saint Germain via samba:
> > On Wed, 2 Nov 2016 16:45:31 +0100, Achim Gottinger via samba
> > <samba at lists.samba.org> wrote :
> >> Am 02.11.2016 um 15:50 schrieb Saint Germain via samba:
> >>> On Wed, 2 Nov 2016 14:44:05 +0100, Achim Gottinger via samba
> >>> <samba at lists.samba.org> wrote :
> >>>>>>> I just tried and when I limit samba to SMB2 connections (in
> >>>>>>> smb.conf), Nautilus/gvfs cannot connect (it doesn't even see
> >>>>>>> the share).
> >>>>>>>
> >>>>>>> I also tried starting a discussion on the topic yesterday:
> >>>>>>> https://mail.gnome.org/archives/gvfs-list/2016-October/msg00000.html
> >>>>>>>
> >>>>>>> It seems that Ross Lagerwall started working on the topic a
> >>>>>>> while ago, but I don't know when/how the code will be
> >>>>>>> included.
> >>>>>>>
> >>>>>>> Thanks for your help !
> >>>>>>>
> >>>>>> gvfs connects with smb2 here with these settings on the
> >>>>>> client's smb.conf
> >>>>>>
> >>>>>> client max protocol = SMB2_10
> >>>>>> client min protocol = SMB2_10
> >>>>>>
> >>>>> With these lines, my gvfs connect but with protocol SMB1
> >>>>> (confirmed with smbstatus -b).
> >>>>>
> >>>>> Which version of samba on the server are you using ?
> >>>>> Which version of libsmbclient and gvfs on the client are you
> >>>>> using ?
> >>>> server: debian wheezy, serner-samba 4.2.14-11
> >>>> client: debian jessie (backports), samba 4.2.10, gvfs 1.22.2-1
> >>>>
> >>>> smbstatus -b shows i'm connected with SMB2_10
> >>>>
> >>>> On the server I have no protocol settings only on the client only
> >>>> above two lines are needed on an otherwise default smb.conf. It's
> >>>> working since debian updated to samba 4.2, that time i did not
> >>>> use jessie-backports packages on the client back then.
> >>>>
> >>> Hum that's really strange. I've downgraded my smblient to be sure:
> >>> - server: Debian Stable + samba 4.2.10 + kernel 4.7 (amd64)
> >>> - client: Debian Stable + smbclient 4.2.10 + kernel 4.7 (amd64) +
> >>> gvfs 1.22.2-1
> >>>
> >>> With only these lines in /etc/samba/smb.conf:
> >>> client max protocol = SMB2_10
> >>> client min protocol = SMB2_10
> >> This must be set on the clients smb.conf not on the server!
> > Ah ! I didn't understood that.
> > Why is "server min protocol" not enough when set on the server ?
> >
> > Anyway I tried with "client min protocol = SMB2_10" on the client,
> > and indeed the connection is now SMB2_10.
> > However it is not possible to copy anymore through Nautilus
> > ("Invalid argument" error) or through command-line (also "Invalid
> > argument").
> >
> > No problem at all when the protocol is NT1 and there is nothing at
> > all in the logs (syslog = 10 on both server and client smb.conf).
> >
> > Thanks for the help !
> >
> gvfs never worked flawless here. I can copy files from amd to the
> server but if i try to copy an folder with files it error.
> With libreoffice i always have to safe an file under an different
> name because it does not let me overwrite on an gvfs samba share.
> Afterwards i can delete the old file and rename the new file without
> errors. But it makes no difference if i use smb1 or smb2 here.

Indeed with SMB2 protocol, I can copy a file but not directory with
files.
However with scopy, the copy is instantaneous (thanks to BTRFS reflink),
but with Nautilus/Gvfs the copy is very slow (it is perhaps not even
server-side).
If you have a samba server with BTRFS, can you confirm that ?

Thanks !