[LU-1104] Fail to mount MDS after downgrade from 2.1.55 to 2.1.0

Wed, 15 Feb 2012 14:43:16 +0000

The system configuration are one MDS, two OSS, two clients.Before downgrade, MDS, OSTS and clients are running 2.1.55 RHEL6-x86_64.
After downgrade:
client1 is 2.1.0-RHEK6-x86_64,client2 is 2.1.0-RHEL5-x86_64;
MDS is 2.1.0-RHEL6-x86_64;
OSS1 is 1.8.7-RHEL5-x86_64; OSS2 is 2.1.0-RHEL6-x86_64

After the whole system is downgraded, cannot mount MDS:

LustreError: 1345:0:(mdt_recovery.c:409:mdt_server_data_init()) lustre-MDT0000: unsupported incompat filesystem feature(s) 200
LustreError: 1345:0:(obd_config.c:522:class_setup()) setup lustre-MDT0000 failed (-22)
LustreError: 1345:0:(obd_config.c:1361:class_config_llog_handler()) Err -22 on cfg command:
Lustre: cmd=cf003 0:lustre-MDT0000 1:lustre-MDT0000_UUID 2:0 3:lustre-MDT0000-mdtlov 4:f
LustreError: 15b-f: MGC10.10.4.131@tcp: The configuration from log 'lustre-MDT0000'failed from the MGS (-22). Make sure this client and the MGS are running compatible versions of Lustre.
LustreError: 15c-8: MGC10.10.4.131@tcp: The configuration from log 'lustre-MDT0000' 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: 1279:0:(obd_mount.c:1192:server_start_targets()) failed to start server lustre-MDT0000: -22
LustreError: 1279:0:(obd_mount.c:1719:server_fill_super()) Unable to start targets: -22
LustreError: 1279:0:(obd_config.c:567:class_cleanup()) Device 3 not setup
LustreError: 1279:0:(ldlm_request.c:1172:ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: canceling anyway
Lustre: MGS has stopped.
LustreError: 1279:0:(ldlm_request.c:1799:ldlm_cli_cancel_list()) ldlm_cli_cancel_list: -108
Lustre: 1279:0:(client.c:1778:ptlrpc_expire_one_request()) @@@ Request x1393773299892268 sent from MGC10.10.4.131@tcp to NID 0@lo has timed out for slow reply: [sent 1329253215] [real_sent 1329253215] [current 1329253221] [deadline 6s] [delay 0s] req@ffff88061a810c00 x1393773299892268/t0(0) o-1->MGS@MGC10.10.4.131@tcp_0:26/25 lens 192/192 e 0 to 1 dl 1329253221 ref 2 fl Rpc:XN/ffffffff/ffffffff rc 0/-1
Lustre: server umount lustre-MDT0000 complete
LustreError: 1279:0:(obd_mount.c:2160:lustre_fill_super()) Unable to mount (-22)
mount.lustre: mount /dev/sdc1 at /mnt/mds1 failed: Invalid argument
This may have multiple causes.
Are the mount options correct?
Check the syslog for more info.

Whamcloud Community JIRA

[LU-1104] Fail to mount MDS after downgrade from 2.1.55 to 2.1.0