[Lustre-discuss] NFS Export Issues

[William Olson]

Hello All,

   Having trouble exporting a lustre mount with NFS..

When mounting the NFS export on client:
[root at nfsclient /]# mount 192.168.100.77:/mnt/lustre_mail_fs 
/mnt/lustre  (have tried nearly every possible switch that I can think 
of, don't think it's related to "how" I attempt to mount)
mount: 192.168.100.77:/mnt/lustre_mail_fs failed, reason given by 
server: Permission denied

Server shows log:
Jul 14 10:24:28 lustreclient mountd[9868]: authenticated mount request 
from 192.168.100.2:720 for /mnt/lustre_mail_fs (/mnt/lustre_mail_fs)
Jul 14 10:24:28 lustreclient mountd[9868]: can't stat exported dir 
/mnt/lustre_mail_fs: Permission denied

Everything from a NFS service/config perspective appears to be 
functional, and I can indeed export a local filesystem without errors...

Additionally, I have no trouble using the mounted lustre filesystem, I 
can even rsync data from the nfs client to the lustre file system on the 
nfs server..

Any clues?  Your knowledge and experience would be greatly appreciated!
See below for config specifics..

Thanks!
Billy Olson

Server/Client Specifics:
Lustre Client/NFS Server: 192.168.100.77
CentOS release 5.4 (Final)
lustre-client-modules-1.8.3-2.6.18_164.11.1.el5_lustre.1.8.3
lustre-client-1.8.3-2.6.18_164.11.1.el5_lustre.1.8.3
Kernel:  2.6.18-164.11.1.el5

/etc/exports:
/mnt/lustre_mail_fs 192.168.100.0/24(ro,insecure)
I've tried various other options all the same outcome, these seemed like 
the best to test with though..

[root at lustreclient ]# rpcinfo -p
    program vers proto   port
     100000    2   tcp    111  portmapper
     100000    2   udp    111  portmapper
     100024    1   udp    645  status
     100024    1   tcp    648  status
     100011    1   udp    702  rquotad
     100011    2   udp    702  rquotad
     100011    1   tcp    705  rquotad
     100011    2   tcp    705  rquotad
     100003    2   udp   2049  nfs
     100003    3   udp   2049  nfs
     100003    4   udp   2049  nfs
     100021    1   udp  37527  nlockmgr
     100021    3   udp  37527  nlockmgr
     100021    4   udp  37527  nlockmgr
     100003    2   tcp   2049  nfs
     100003    3   tcp   2049  nfs
     100003    4   tcp   2049  nfs
     100021    1   tcp  52555  nlockmgr
     100021    3   tcp  52555  nlockmgr
     100021    4   tcp  52555  nlockmgr
     100005    1   udp    716  mountd
     100005    1   tcp    719  mountd
     100005    2   udp    716  mountd
     100005    2   tcp    719  mountd
     100005    3   udp    716  mountd
     100005    3   tcp    719  mountd

[root at lustreclient ]# exportfs -v -r
exporting 192.168.100.0/24:/mnt/lustre_mail_fs

NFS Client: 192.168.100.2