[Lustre-discuss] NFS Export Issues

[Andreas Dilger]

On 2010-07-16, at 17:35, Kevin Van Maren wrote:
> Without more information about the server error messages and exact nfs 
> configuration, not sure anyone can help more than this.  A common 
> problem with Lustre NFS exports, one that isn't due to normal 
> NFS/configuration issues, is getting error -43 when the mds did not have 
> the client's IDs in its /etc/passwd and /etc/group files.
> 
> Dumb question, but have you checked the permissions on the NFS server's 
> Lustre mount point (before/after Lustre is mounted), and exported a 
> non-Lustre directory successfully?

This is covered earlier in the thread.

> Andreas Dilger wrote:
>> My only other suggestion is to dump the Lustre kernel debug log on the NFS server after a mount failure to see where/why it is getting the permission error. 
>> 
>> # lctl clear
>> # (mount NFS client)
>> # lctl dk /tmp/debug
>> 
>> Then search through the logs for -2 errors (-EPERM).

Cheers, Andreas
--
Andreas Dilger
Lustre Technical Lead
Oracle Corporation Canada Inc.