Questions Tagged With nfs

NFS Stale File Handle Problem

baddestguy — Tue, 30 Oct 2012 14:08:05 -0400

Hi guys, I have the files for a website on a central machine and mount this directory on several other small servers around using nfs. problem is, I have started to get some strange errors recently, the whole system gets frozen and I get this error:

Stale File Handle

I havent been able to get enough information for debugging from the server itself, but I am hoping there would be a way to resolve this issue, is there anything in particular that I have to bear in mind when mounting file for a website to a central server?

I there a better way to handle this situation? keeping the website files on one server and have all others share into same files?

thanks in advance

NFS over SSH. RPC Error

Dave 1 — Tue, 24 Aug 2010 17:50:10 -0400

Hi,

I have seen many articles saying that to get rid of this error I should be using portmap, that's fine but how do I use it over ssh...

I am trying to mount NFS over SSH. I have the server configured to export the share and I can mount it correctly over the network, however company policy is to ONLY allow ssh access.

On the server side; ]# cat /etc/exports

/home/Shared localhost(rw,no_root_squash,async)

]# rpcinfo -p

program vers proto port

100000    2   tcp    111  portmapper
100000    2   udp    111  portmapper
100024    1   udp  49449  status
100024    1   tcp  36697  status
100021    1   udp  34934  nlockmgr
100021    3   udp  34934  nlockmgr
100021    4   udp  34934  nlockmgr
100021    1   tcp  37221  nlockmgr
100021    3   tcp  37221  nlockmgr
100021    4   tcp  37221  nlockmgr
100003    2   udp   2049  nfs
100003    3   udp   2049  nfs
100003    4   udp   2049  nfs
100003    2   tcp   2049  nfs
100003    3   tcp   2049  nfs
100003    4   tcp   2049  nfs
100005    1   udp   2051  mountd
100005    1   tcp   2051  mountd
100005    2   udp   2051  mountd
100005    2   tcp   2051  mountd
100005    3   udp   2051  mountd
100005    3   tcp   2051  mountd

The on the client side I use 2 ssh tunnels;

]# ssh -f -N -L 52051:localhost:2051 my.server

]# ssh -f -N -L 52049:localhost:2049 my.server

I can telnet to these ports and receive a response. So now I try to mount;

]# mount -t nfs -o nolock,port=52049,mountport=52051 localhost:/home/Shared /mnt/Shared

mount.nfs: mount to NFS server 'localhost:/home/Shared' failed: RPC Error: Program not registered

So it seems as if the problem is caused by mount talking to the local portmap, however I thought the mount options were supposed to stop that. Obviously I cannot forward portmapper from the server to the client's port 111 as that would disrupt the client's portmapper.

I am using SUSE 11.2 for the client and Ubuntu 10.04 as the server.

what is RPC error program not registered error while mounting NFS on boot can't mount at boot

Sanil — Wed, 05 May 2010 15:01:55 -0400

what is RPC error program not registered error when mounting NFS on boot can't mount at boot using FSTAB

I added fstab entry as

host.foo.com:/nfsshare /pub nfs defaults 0 0

at the boot time it report RPC failed program not registered. what i do?