[gpfsug-discuss] CES NFS with Kerberos

Lukas Hejtmanek xhejtman at ics.muni.cz
Wed Sep 21 20:09:32 BST 2016


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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