[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