Arch Linux

parnigot

Member

Registered: 2013-09-10

Posts: 2

Various NFS problems

I'm quite new with Arch and I'm having a lot of problems with NFS.

At home I've a small home server (running Ubuntu Server 12.04) with some NFSv4 shares. On the client (the one running Arch) I mount the shares with the following line in /etc/fstab:

192.168.1.1:/   /mnt/nfs4   nfs4   noauto,x-systemd.automount,x-systemd.device-timeout=20,rsize=8192,wsize=8192	0 0

The shares are correctly mounted at boot and I don't have any problems when I copy files from the server to the client. Performances are really good: with big files I've seen transfer rates up to 80-90MB/s.
Things get messy the other way around, when I copy files from the client to the server. If the files being copied are small it usually works fine, but if the files are big (let's say 1GB+) the copy always hangs after 20-30s. When this happens the entire system becomes laggy and unresponsive. To get an usable system again I must stop the copy (not an easy task with nautilus freezed) and umount the nfs shares or, alternatively, reboot the entire system (the faster method).

Any ideas?

PS: sorry for my terrible english.

Nicop

Member

From: Nice, France

Registered: 2013-12-10

Posts: 12

Re: Various NFS problems

Hello,

You need to provide more information in order to find a solution. It can be a network, disk or configuration problem, or maybe something else.

You can try to:
- Detect disk errors using dmesg and copy the file locally on the server share (using a flash drive for example)
- Copy the file using the terminal from the client
- Use other protocols to send the file on the server (FTP, SSH, SAMBA, ...)
- Monitor your network, cpu and memory during the copy process (on the server and the client)
- Use another client or OS to mount the NFS.
- Investigate the logs and send useful information.

The steps above aren't in a relevant order. You can also provide your NFS configuration file, you connection type (wireless, wired, with/without router/switch/hub), the file system of your drives.

Thank you.

nomorewindows

Member

Registered: 2010-04-03

Posts: 3,424

Re: Various NFS problems

You might take a gander at http://nfs.sourceforge.net

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I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

parnigot

Member

Registered: 2013-09-10

Posts: 2

Re: Various NFS problems

Thanks for the answers and sorry for the delay (horrible week).

After tinkering with the mount options I've apparently solved the issue removing the x-systemd.device-timeout=20 from the fstab mount option. Now it works fine.