[Lustre-discuss] NFS Export Issues

[William Olson]

Somebody, anybody?  I'm sure it's something fairly simple, but it 
escapes me, assistance would be greatly appreciated!
Thanks Again!
> 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
>
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