[lustre-discuss] putting web pages on lustre mount

Andrus, Brian Contractor bdandrus at nps.edu
Thu Jan 26 07:06:56 PST 2017

It comes back with:

# L_GETIDENTITY_TEST=true l_getidentity -d 48
uid=48 gid=48
  nid                   perm

The only thing in /etc/hosts is the localhost. Everything else is via DNS that is all there (forward/reverse/aliases, etc)

Brian Andrus
ITACS/Research Computing
Naval Postgraduate School
Monterey, California
voice: 831-656-6238

-----Original Message-----
From: Dilger, Andreas [mailto:andreas.dilger at intel.com] 
Sent: Wednesday, January 25, 2017 5:25 PM
To: Andrus, Brian Contractor <bdandrus at nps.edu>
Cc: lustre-discuss at lists.lustre.org
Subject: Re: [lustre-discuss] putting web pages on lustre mount

On Jan 25, 2017, at 16:36, Andrus, Brian Contractor <bdandrus at nps.edu> wrote:
> We’ve been using lustre for some time with great success, but I recently tried moving some hosted web pages from a gluster mount to a lustre mount and suddenly they don’t work, giving an error:
> [core:error] [pid 8769] (13)Permission denied: [client xxx.xxx.yyy.zzz:56341] AH00035: access to /yum/7/ denied (filesystem path '/opt/yum/7') because search permissions are missing on a component of the path
> Thing is, the permissions/ownership are exactly the same as the gluster mount. Is there a particular mount setting that needs done so apache can serve pages on a lustre mount?

Is the web server UID/GID in the /etc/hosts file on the MDS so that the l_getidentity upcall can find them?  Try running on the MDS as root:

L_GETIDENTITY_TEST=true l_getidentity -d {uid}

and verify that the user can be found.

Cheers, Andreas
Andreas Dilger
Lustre Principal Architect
Intel Corporation

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