[Lustre-discuss] MDT fails to mount after lustre upgrade

[Anjana Kar]

Ran these commands.. corresponding messages (below) from console:

[root at icon0]# lustre_rmmod
[root at icon0]# /sbin/service lustre start mgsmdt
Mounting lustre-mgs-mdt/mgsmdt0 on /mnt/lustre/local/mgsmdt
mount.lustre: mount lustre-mgs-mdt/mgsmdt0 at /mnt/lustre/local/mgsmdt 
failed: File exists
[root at icon0 obdclass]# lctl dl
[root at icon0 obdclass]# more /proc/fs/lustre/version
lustre: 2.5.57
kernel: patchless_client
build:  2.5.57-g3423b5b-CHANGED-2.6.32-431.11.2.el6.netboot

----------------------------------------------------------------------------------------------------------------
2014-04-22T11:17:01.632211-04:00 icon0.psc.edu kernel: LNet: Removed LNI 
128.182.75.160 at tcp10
2014-04-22T11:17:03.638989-04:00 icon0.psc.edu kernel: LNet: Removed LNI 
10.10.101.160 at o2ib

2014-04-22T11:17:45.370586-04:00 icon0.psc.edu kernel: alg: No test for 
adler32 (adler32-zlib)
2014-04-22T11:17:45.375377-04:00 icon0.psc.edu kernel: alg: No test for 
crc32 (crc32-table)

2014-04-22T11:17:53.537558-04:00 icon0.psc.edu kernel: Lustre: Lustre: 
Build Version: 2.5.57-g3423b5b-CHANGED-2.6.32-431.11.2.el6.netboot
2014-04-22T11:17:53.780761-04:00 icon0.psc.edu kernel: LNet: Added LNI 
10.10.101.160 at o2ib [8/256/0/180]
2014-04-22T11:17:53.799193-04:00 icon0.psc.edu kernel: LNet: Added LNI 
128.182.75.160 at tcp10 [8/256/0/180]
2014-04-22T11:17:53.803483-04:00 icon0.psc.edu kernel: LNet: Accept 
secure, port 988

2014-04-22T11:17:56.016370-04:00 icon0.psc.edu kernel: LustreError: 
11-0: iconfs-MDT0000-lwp-MDT0000: Communicating with 0 at lo, operation 
mds_connect failed with -11.
LustreError: 9303:0:(mdd_device.c:1050:mdd_prepare()) iconfs-MDD0000: 
failed to initialize lfsck: rc = -17
LustreError: 9303:0:(obd_mount_server.c:1776:server_fill_super()) Unable 
to start targets: -17
2014-04-22T11:17:58.112621-04:00 icon0.psc.edu kernel: LustreError: 
9303:0:(mdd_device.c:1050:mdd_prepare()) iconfs-MDD0000: failed to 
initialize lfsck: rc = -17
2014-04-22T11:17:58.112650-04:00 icon0.psc.edu kernel: LustreError: 
9303:0:(obd_mount_server.c:1776:server_fill_super()) Unable to start 
targets: -17
2014-04-22T11:17:58.125683-04:00 icon0.psc.edu kernel: Lustre: Failing 
over iconfs-MDT0000

2014-04-22T11:18:04.453442-04:00 icon0.psc.edu kernel: Lustre: 
9303:0:(client.c:1912:ptlrpc_expire_one_request()) @@@ Request sent has 
timed out for slow reply: [sent 1398179878/real 1398179878]  
req at ffff880307c08800 x1466097858510988/t0(0) 
o251->MGC10.10.101.160 at o2ib@0 at lo:26/25 lens 224/224 e 0 to 1 dl 
1398179884 ref 2 fl Rpc:XN/0/ffffffff rc 0/-1

2014-04-22T11:18:04.715996-04:00 icon0.psc.edu kernel: Lustre: server 
umount iconfs-MDT0000 complete
2014-04-22T11:18:04.716024-04:00 icon0.psc.edu kernel: LustreError: 
9303:0:(obd_mount.c:1338:lustre_fill_super()) Unable to mount  (-17)

On 04/22/2014 11:00 AM, Parinay Kondekar wrote:
> LustreError: 3537:0:(obd_mount_server.c:1776:server_fill_super()) 
> Unable to start targets: -17 2014-04-21T13:05Lustre: Failing over 
> iconfs-MDT0000 :09.821666-04:00 icon0.psc.edu 
> <http://icon0.psc.edu/> kernel: LustreError: 
> 3537:0:(mdd_device.c:1050:mdd_prepare()) iconfs-MDD0000: failed to 
> initialize lfsck: rc = -17
>
>  #define>EEXIST> >       17>     /* File exists */
>
> Issue is present with 2.4 client.
>
> - Try `lustre_rmmod` and mount again.
> - lctl dl output
> - lustre version
>
> HTH
>

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