[Lustre-discuss] Weird behavior on lustre clients

[Jagga Soorma]

Hello,

I am experiencing some weird behavior on my lustre clients.  I have worked
with Novell support and they keeping pointing to lustre as the culprit for
these issues.  I am getting intermittent I/O errors when running df/ls on
any nfs mounts without anything being logged in syslog.  After putting nfs
and rpc in debug mode by running:

rpcdebug -m nfs -s all
rpcdebug -m rpc -s all

I now see the following errors in my logs:

..snip..
Aug  8 02:32:56 reshpc115 kernel: RPC:  2440 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:32:56 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:32:59 reshpc115 kernel: RPC:  2441 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:32:59 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:47:59 reshpc115 kernel: RPC:  2447 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:47:59 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:57:59 reshpc115 kernel: RPC:  2451 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:57:59 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:58:00 reshpc115 kernel: RPC:  2452 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:58:00 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:58:13 reshpc115 kernel: RPC:  2453 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:58:13 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:58:26 reshpc115 kernel: RPC:  2454 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:58:26 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:58:30 reshpc115 kernel: RPC:  2455 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:58:30 reshpc115 kernel: nfs_statfs: statfs error = 5
Aug  8 02:58:32 reshpc115 kernel: RPC:  2456 xprt_connect_status: error 99
connecting to server nas-rwc-is2
Aug  8 02:58:32 reshpc115 kernel: nfs_statfs: statfs error = 5
..snip..

I am using all supported packages/kernels for lustre and on servers without
the lustre clients installed I have no issues with nfs.  Does the interval
between these errors mean anything?

Any help would be greatly appreciated.

Thanks,
-J

--
reshpc115:~ # uname -a
Linux reshpc115 2.6.27.29-0.1-default #1 SMP 2009-08-15 17:53:59 +0200
x86_64 x86_64 x86_64 GNU/Linux
reshpc115:~ # rpm -qa | grep -i lustre
lustre-client-1.8.1.1-2.6.27.29_0.1_lustre.1.8.1.1_default
lustre-client-modules-1.8.1.1-2.6.27.29_0.1_lustre.1.8.1.1_default
reshpc115:~ # rpm -qa | grep -i kernel-ib
kernel-ib-1.4.2-2.6.27.29_0.1_default
--
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