[Lustre-discuss] Exporting lustre over nfs

Frederik Ferner frederik.ferner at diamond.ac.uk
Thu Sep 2 09:59:35 PDT 2010


Hi David,

David Noriega wrote:
> I've read you can export lustre via nfs but I'm running into some
> trouble. I tried nfs3 but when I would check a directory, all the
> files where labeled red and ls -al showed no username or permissions,
> just "?" This was on the server
> 
> nfsd: non-standard errno: -43
> LustreError: 11-0: an error occurred while communicating with
> 192.168.5.104 at tcp. The mds_getxattr operation failed with -43
> nfsd: non-standard errno: -43
> LustreError: 11-0: an error occurred while communicating with
> 192.168.5.104 at tcp. The mds_getxattr operation failed with -43
> nfsd: non-standard errno: -43

We see these when the user trying to access the file system on the NFS 
client is not known on the MDS. This also sometimes happens to us if the 
NFS server is exporting with root_squash enabled (good!) and the user on 
the client is root but the mapped user is not know on the MDS...

This will the result in the described display on the NFS client.

> So then I tried out nfs4 and trying to navigate or ls into the nfs
> mount would hang and I would on get the mds_getxattr error.

Sorry, no experience with NFS4 (yet).

Hope this helps,
Frederik
-- 
Frederik Ferner
Computer Systems Administrator		phone: +44 1235 77 8624
Diamond Light Source Ltd.		mob:   +44 7917 08 5110
(Apologies in advance for the lines below. Some bits are a legal
requirement and I have no control over them.)



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