Re: cannot use btrfs for nfs server

Ulli Horlacher
2021-07-27T11:35:09Z

On Mon 2021-07-19 (14:06), Forza wrote:

> > And the error messages are annoying!
> >
> > root@tsmsrvj:/etc# exportfs -v
> > /data/fex localhost.localdomain(rw,async,wdelay,crossmnt,no_root_squash,no_subtree_check,sec=sys,rw,secure,no_root_squash,no_all_squash)
> > /data/snapshots localhost.localdomain(rw,async,wdelay,crossmnt,no_root_squash,no_subtree_check,sec=sys,rw,secure,no_root_squash,no_all_squash)
> >
> > root@tsmsrvj:/etc# mount -o vers=3 localhost:/data/fex /nfs/localhost/fex
> > root@tsmsrvj:/etc# mount -o vers=3 localhost:/data/snapshots /nfs/localhost/snapshots
> > root@tsmsrvj:/etc# mount | grep localhost
> > localhost:/data/fex on /nfs/localhost/fex type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=127.0.0.1,mountvers=3,mountport=37961,mountproto=udp,local_lock=none,addr=127.0.0.1)
> > localhost:/data/snapshots on /nfs/localhost/snapshots type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=127.0.0.1,mountvers=3,mountport=37961,mountproto=udp,local_lock=none,addr=127.0.0.1)
> >
>
> What kind of NFS server is this?

Default Ubuntu kernel NFS-server.

> Isn't UDP mounts legacy and not normally used by default?

See above, I am using tcp!

> Can you switch to an nfs4 server and try again? I also still think you
> should use fsid export option.

No change. The error is still there.

--
Ullrich Horlacher Server und Virtualisierung
Rechenzentrum TIK
Universitaet Stuttgart E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a Tel: ++49-711-68565868
70569 Stuttgart (Germany) WWW: http://www.tik.uni-stuttgart.de/
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