[LU-5707] LFSCK 3: cannot load namespace LFSCK tracing file after downgrade from Lustre-2.7

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.7.0, Lustre 2.5.4
• Affects Version/s: Lustre 2.7.0, Lustre 2.5.3
• Severity: 3
• Assignee: nasf (Inactive)
• Reporter: nasf (Inactive)

Description

Lustre: stldsk-MDT0000: used disk, loading
LustreError: 11-0: stldsk-MDT0000-lwp-MDT0000: Communicating with 0@lo, operation mds_connect failed with -11.
LustreError: 6830:0:(lfsck_namespace.c:147:lfsck_namespace_load()) stldsk-MDT0000-o: fail to load lfsck_namespace, expected = 256, rc = -34
LustreError: 6830:0:(mdd_device.c:974:mdd_prepare()) stldsk-MDD0000: failed to initialize lfsck: rc = -34
LustreError: 6830:0:(obd_mount_server.c:1725:server_fill_super()) Unable to start targets: -34
Lustre: Failing over stldsk-MDT0000

Issue Links

• duplicates: LU-5923 Master testing: MDT0 not mounting after master downgrade to 2.5
• is duplicated by: LU-5897 Clean downgrade from master to 2.6.0 failed: fail to init namespace LFSCK component: rc = -34
• is duplicated by: LU-5923 Master testing: MDT0 not mounting after master downgrade to 2.5
• is related to: LU-6321 Clean downgrade from 2.7.0 to 2.6.0 failed: fail to init namespace LFSCK component: rc = -5

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch http://review.whamcloud.com/12278/
Subject: LU-5707 lfsck: recreate LFSCK trace file for load failure
Project: fs/lustre-release
Branch: b2_5
Current Patch Set:
Commit: 2f2969bc6b8a4bf138eaaea30e808dc35c446994

[Jodi Levi (Inactive)]

Patch landed to Master.
Patch landing for other versions tracked externally.

[nasf (Inactive)]

We still need to land the patch http://review.whamcloud.com/#/c/12278/ to b2_5 before closing the ticket.

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch http://review.whamcloud.com/12321/
Subject: LU-5707 lfsck: store namespace LFSCK statistics info in new EA
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: b425c1f4ab1aa9c914acf2d6b500817259a240e9

[Gerrit Updater]

Fan Yong ([e-mail]) uploaded a new patch: http://review.whamcloud.com/12321
Subject: LU-5707 lfsck: store namespace LFSCK statistics info in new EA
Project: fs/lustre-release
Branch: master
Current Patch Set: 4
Commit: 9088a63897f674fb8ca70bf8c5901b94372ecd70

[nasf (Inactive)]

We still needs the patch for b2_5: http://review.whamcloud.com/#/c/12278/

[nasf (Inactive)]

We decide to resolve the trouble on master, here is the patch:
http://review.whamcloud.com/#/c/12321/

[nasf (Inactive)]

Here is the patch b2_5:
http://review.whamcloud.com/#/c/12278/

[Andreas Dilger]

Is this problem also present on b2_5?

[nasf (Inactive)]

Here is the patch for b2_6:
http://review.whamcloud.com/#/c/12188/