[LU-3199] Interoperability problem between Lustre 2.1.3 clients and lustre 2.3.63 servers

Related — Mon, 21 Jun 2021 17:29:46 +0000

I'm testing the 2.3.63 tag with a 2.1.3 client I can't mount this client.

All servers are installed in 2.3.63.

My Lustre client is in 2.1.3.

Once my MDS/MGS is started and my OSS too I cannot mount the Lustre filesystem.

On MDS/MGS:

[root@falcao2 ~]# lctl dl
0 UP osd-ldiskfs MGS-osd MGS-osd_UUID 5
1 UP mgs MGS MGS 7
2 UP mgc MGC10.5.0.2@tcp 2d7d64f3-854c-60f8-ba9f-b04827fb7012 5
3 UP osd-ldiskfs falcaofs-MDT0000-osd falcaofs-MDT0000-osd_UUID 9
4 UP mds MDS MDS_uuid 3
5 UP lod falcaofs-MDT0000-mdtlov falcaofs-MDT0000-mdtlov_UUID 4
6 UP mdt falcaofs-MDT0000 falcaofs-MDT0000_UUID 9
7 UP mdd falcaofs-MDD0000 falcaofs-MDD0000_UUID 4
8 UP qmt falcaofs-QMT0000 falcaofs-QMT0000_UUID 4
9 UP osp falcaofs-OST0001-osc-MDT0000 falcaofs-MDT0000-mdtlov_UUID 5
10 UP osp falcaofs-OST0002-osc-MDT0000 falcaofs-MDT0000-mdtlov_UUID 5
11 UP lwp falcaofs-MDT0000-lwp-MDT0000 falcaofs-MDT0000-lwp-MDT0000_UUID 5

On OSS:

[root@falcao3 ~]# lctl dl
0 UP osd-ldiskfs falcaofs-OST0002-osd falcaofs-OST0002-osd_UUID 5
1 UP mgc MGC10.5.0.2@tcp 15818cd1-7577-8e13-aa40-601eca445800 5
2 UP ost OSS OSS_uuid 3
3 UP obdfilter falcaofs-OST0002 falcaofs-OST0002_UUID 5
4 UP osd-ldiskfs falcaofs-OST0001-osd falcaofs-OST0001-osd_UUID 5
5 UP obdfilter falcaofs-OST0001 falcaofs-OST0001_UUID 5
6 UP lwp falcaofs-MDT0000-lwp-OST0001 falcaofs-MDT0000-lwp-OST0001_UUID 5
7 UP lwp falcaofs-MDT0000-lwp-OST0002 falcaofs-MDT0000-lwp-OST0002_UUID 5

Trying mount from my 2.1.3 client:

[root@austin7 ~]# mount -t lustre falcao0@tcp:/falcaofs/ /falcaofs/

Client's log:

LustreError: 3675:0:(mgc_request.c:275:config_log_add()) logname falcaofs/-client is too long
LustreError: 15b-f: MGC10.5.0.1@tcp: The configuration from log 'falcaofs/-client'failed from the MGS (-22). Make sure this client and the MGS are running compatible versions of Lustre.
LustreError: 15c-8: MGC10.5.0.1@tcp: The configuration from log 'falcaofs/-client' failed (-22). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.
LustreError: 3675:0:(llite_lib.c:961:ll_fill_super()) Unable to process log: -22
Lustre: Unmounted falcaofs/-client
Lustre: 1596:0:(client.c:1796:ptlrpc_expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1366641507/real 1366641507] req@ffff88003e5a4400 x1432758140272642/t0(0) o250->MGC10.5.0.1@tcp@10.5.0.1@tcp:26/25 lens 368/512 e 0 to 1 dl 1366641512 ref 1 fl Rpc:XN/0/ffffffff rc 0/-1
LustreError: 3675:0:(obd_mount.c:2198:lustre_fill_super()) Unable to mount (-22)

Maybe I missed something. Don't hesitate to ask for more information if needed.

Whamcloud Community JIRA

[LU-3199] Interoperability problem between Lustre 2.1.3 clients and lustre 2.3.63 servers