[lustre-discuss] refresh file layout error

[E.S. Rosenberg]

On Wed, Sep 2, 2015 at 6:51 PM, Stearman, Marc <stearman2 at llnl.gov> wrote:

> -13 is permission denied (EACCES).  Does your webserver have access to
> those files?  If it is running as nobody, do you have the proper
> ownership/permissions set on all the directories and files?
>
The files were created by the web/python-server to begin with, though the
apache process is running as a different user, but they are set to 644.
Also if it were permissions shouldn't it not succeed to return any data?
Here it's returning chunks of varying sizes every time....

Thanks,
Eli

>
> -Marc
>
> ----
> D. Marc Stearman
> Lustre Operations Lead
> stearman2 at llnl.gov
> 925.423.9670
>
>
>
>
> On Sep 2, 2015, at 4:57 AM, E.S. Rosenberg <esr+lustre at mail.hebrew.edu>
> wrote:
>
> > Hi all,
> >
> > I am seeing an interesting/annoying problem with lustre and am not
> really sure what/where to look.
> >
> > When a webserver (galaxy using wsgi/apache2) tries to server (large)
> files stored on lustre it fails to send the full file and I see the
> following errors in syslog:
> >
> > Sep  2 11:50:17 hm-02 kernel: LustreError:
> 6973:0:(vvp_io.c:1197:vvp_io_init()) fs01: refresh file layout
> [0x200008815:0x217e:0x0] error -13.
> > Sep  2 11:50:17 hm-02 kernel: LustreError:
> 6973:0:(file.c:179:ll_close_inode_openhandle()) inode 144115772543738238
> mdc close failed: rc = -13
> >
> > If I try to access the files through their direct path (copying to
> tmp/md5sum/sha512sum) it seems to work without a problem (full file is
> copied and sums agree, from different nodes).
> >
> > When we switched the storage backend to NFS the server worked fine, so
> my guess is that there is an issue with the way python tries to read from
> the 'disk'...
> >
> > Is anyone familiar with the error above?
> >
> > Thanks,
> > Eli
> > _______________________________________________
> > lustre-discuss mailing list
> > lustre-discuss at lists.lustre.org
> > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lustre.org/pipermail/lustre-discuss-lustre.org/attachments/20150903/5adcac75/attachment.htm>