NFS and the beowulf cluster.
rsand at d.umn.edu
Thu Jun 28 14:39:11 EDT 2001
As reported yesterday I am still having problems with nfs on my cluster
when I have never had nfs problems in the past. I have added the
/etc/exports file and put all the nodes into the hosts file and added a
line for portmap in the hosts.allow file and I still get errors on both
sides of the equation.
On the master portmap reports this when a node tries to mount the /home
portmap: connect from 192.168.1.12 to dump(): request from
and in the /var/log/beowulf/node.# file I see:
node_modprobe: installing kernel module: sunrpc
node_modprobe: installing kernel module: lockd
node_modprobe: installing kernel module: nfs
mount: RPC: Unable to receive; errno = Connection refused
Failed to mount 192.168.1.10:/home on /home.
Now in my hosts.allow file I have "ALL: 192.168." and I have "PORTMAP:
192.168." and in /etc/exports I have "/home node*(rw)" I also have an
nfs line in the /etc/beowulf/fstab that says:
$MASTER:/home /home nfs defaults 0 0
What is wrong here? I have each node listed in the /etc/hosts file too
and still nothing. Any ideas what might be causing this?
mailto:rsand at d.umn.edu
University of Minnesota, Duluth
Information Technology Systems and Services
218-726-6122 fax 218-726-7674
"Walk behind me I may not lead, Walk in front of me I may not follow,
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