[Lustre-discuss] NFS Export Issues

[William Olson]

On 7/16/2010 5:41 PM, Kevin Van Maren wrote:
> Looks like a problem with your mount point.  What are the permissions 
> on the client directory?
>
NFSServer/Lustre Client

Lustre mounted:
drwxrwxrwx 29 root root 4.0K Jul 12 17:03 lustre_mail_fs
Lustre not mounted:
drwxrwxrwx 2 root root 4.0K Jun 10 13:26 lustre_mail_fs

NFSClient mount dir:
drwxrwxrwx  2 root root 4.0K Jul 12 15:09 lustre

>
> On Jul 16, 2010, at 6:23 PM, William Olson <lustre_admin at reachone.com> 
> wrote:
>
>> On 7/16/2010 5:12 PM, Andreas Dilger wrote:
>>>
>>>> Well that improved the debug level, but didn't reveal any -2 
>>>> errors..   In fact I can't seem to find a line with an error in 
>>>> it... Is there a specific verbiage used on error lines that I can 
>>>> grep for?  90% is "Process entered" or "Process leaving"...
>>>>
>>> You could try "strace -f" on the mount process, to see which syscall 
>>> is failing.  It may be failing with something before it gets to Lustre.
>>>
>> Results of strace below:
>>
>> [root at lustreclient mnt]# strace -f -p 15964
>> Process 15964 attached - interrupt to quit
>
>
>
>> lstat("/mnt", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/mnt/lustre_mail_fs", 0x7fff4bd4b2b0) = -1 EACCES (Permission 
>> denied)
>> stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2875, ...}) = 0
>
>