[Lustre-discuss] RHEL54 / Lustre 2.0.0.1 mds_getxattr -95 errors

[Fan Yong]

  I think you met the issues I mentioned in:
http://jira.whamcloud.com/browse/ORNL-3

I have made patch for it and in testing.
Before the patch landed, you can mount MDT with "-o acl" or "-o noacl" 
explicitly to avoid these confused messages.

--
Nasf

On 1/18/11 10:39 PM, CHU, STEPHEN H (ATTSI) wrote:
>
> Hi all,
>
> I recently loaded the following on my testbed to try out Lustre 2.0:
>
> · One MDS -- RHEL 54, Lustre 2.0
>
> o mkfs.lustre --fsname=lufs --reformat --mgs --mdt --param 
> lov.stripesize=25M --param lov.stripecount=1 /dev/sda2
>
> o /etc/fstab = /dev/sda2       /lustre1-mgs-mds                lustre  
> rw,noauto,_netdev  0 0
>
> · One OSS -- RHEL 54, Lustre 2.0
>
> o mkfs.lustre --fsname=lufs --reformat --ost 
> --mgsnode=10.103.34.42 at o2ib0 /dev/sdb
>
> o mkfs.lustre --fsname=lufs --reformat --ost 
> --mgsnode=10.103.34.42 at o2ib0 /dev/sdc
>
> o /etc/fstab = /dev/sdb        /lustre1/ost1         lustre  
> rw,noauto,_netdev  0 0
>
> o                        /dev/sdc        /lustre1/ost2         lustre  
> rw,noauto,_netdev  0 0
>
> · One Client -- RHEL 54, Lustre 2.0
>
> o /etc/fstab = 10.103.34.42 at o2ib0:/lufs       /lustre1_fifo         
> lustre  rw,noauto,_netdev  0 0
>
> /lustre-mgs-mds, /lustre1/ost1,2 mounted OK on MDS and OSS. 
> /lustre1_fifo mounted OK with Client. So far so good.
>
> On Client, "cd /" and performed a "ls --l". The following messages 
> immediately showed up:
>
> · On Client
>
> o  Jan 18 14:04:19 bg8mo33sn kernel: LustreError: 11-0: an error 
> occurred while communicating with 10.103.34.42 at o2ib. The mds_getxattr 
> operation failed with -95
>
> · On MDS
>
> o Jan 18 14:04:19 bg8mo33lm kernel: LustreError: 
> 20056:0:(ldlm_lib.c:2123:target_send_reply_msg()) @@@ processing error 
> (-95)  req at ffff81031427e050 x1357944885151537/t0(0) 
> o49->af4d23bf-2d42-6e4d-6afc-353425e513af at NET_0x500000a672229_UUID:0/0 
> lens 448/328 e 0 to 0 dl 1295359465 ref 1 fl 
> Interpret:/ffffffff/ffffffff rc -95/-1
>
> All IBs between all nodes are alive and seeing each other with no problem.
>
> The client also NFS exports /lustre1_fifo via:
>
> · /etc/exports = /lustre1_fifo   testhost1(rw,sync,no_root_squash)
>
> After testhost1 mounted /lustre1_fifo and attempt to "mkdir test" 
> under it, the same error messages from above showed up on the MDS and 
> the client. "-95" as "Operation not supported on transport endpoint" 
> but what does it mean here in this context.
>
> The same MDS/OSS/Client setup/arrangements ran fine on RHEL 5.3 and 
> Lustre 1.8.1.1 with no errors.
>
> Appreciate any help/insight. Thanks.
>
> */Steve/*
>
> */Stephen Chu/*
>
> *AT&T Labs CSO*
>
> C5-3C03
>
> 200 Laurel Ave
>
> Middletown, NJ
>
> (732) 420-0588
>
> stephenchu at att.com
>
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