[Lustre-discuss] Root squashing in 1.6.5?

[Andreas Dilger]

On Jun 29, 2008  16:53 +0200, Andrei Maslennikov wrote:
> Could somebody comment on the state of the root squashing in 1.6.5? It was
> meant to be there, but the May 2008 edition of the manual does not mention it.

Not sure about it being in the manual, likely just an omission.

> One would expect /proc/fs/lustre/mdt/rootsquash_uid,
> /proc/fs/lustre/mdt/rootsquash_gid and
> /proc/fs/lustre/mdt/rootsquash_nids to be available as of 1.6.5 (not there
> so far). Or was that postponed until 1.7?

Root should be in /proc/fs/lustre/mds/{MDS}/ in the 1.6.5 release.

The files that I see are:

# lctl get_param mds.*.*squash*
mds.lustre-MDT0000.nosquash_nid=0@<0:0>
mds.lustre-MDT0000.rootsquash=0:0

These files are of the form nosquash_nid={single NID which will not be
squashed}, and "rootsquash={uid:gid to remap root access to}".

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.