[gpfsug-discuss] CES NFS with Kerberos

[Lukas Hejtmanek]

Hello,

thanks, I do not see any error in GPFS logs. The link, I posted below is not
related to GPFS at all, it seems that it is bug in ganesha.

On Wed, Sep 21, 2016 at 10:34:09PM +0000, Greg.Lehmann at csiro.au wrote:
> It may not be NFS. Check your GPFS logs too.
> 
> -----Original Message-----
> From: gpfsug-discuss-bounces at spectrumscale.org [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Lukas Hejtmanek
> Sent: Thursday, 22 September 2016 5:10 AM
> To: gpfsug-discuss at spectrumscale.org
> Subject: [gpfsug-discuss] CES NFS with Kerberos
> 
> Hello,
> 
> does nfs server (ganesha) work for someone with Kerberos authentication?
> 
> I got random permission denied:
> :/mnt/nfs-test/tmp# for i in `seq 1 20`; do rm testf; dd if=/dev/zero of=testf bs=1M count=100000; done
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 642.849 s, 163 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 925.326 s, 113 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 762.749 s, 137 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 860.608 s, 122 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 788.62 s, 133 MB/s
> dd: error writing ‘testf’: Permission denied
> 51949+0 records in
> 51948+0 records out
> 54471426048 bytes (54 GB) copied, 566.667 s, 96.1 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 1082.63 s, 96.9 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 1080.65 s, 97.0 MB/s
> 100000+0 records in
> 100000+0 records out
> 104857600000 bytes (105 GB) copied, 949.683 s, 110 MB/s
> dd: error writing ‘testf’: Permission denied
> 30076+0 records in
> 30075+0 records out
> 31535923200 bytes (32 GB) copied, 308.009 s, 102 MB/s
> dd: error writing ‘testf’: Permission denied
> 89837+0 records in
> 89836+0 records out
> 94199873536 bytes (94 GB) copied, 976.368 s, 96.5 MB/s
> 
> It seems that it is a bug in ganesha:
> http://permalink.gmane.org/gmane.comp.file-systems.nfs.ganesha.devel/2000
> 
> but it is still not resolved.
> 
> --
> Lukáš Hejtmánek
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-- 
Lukáš Hejtmánek