[LU-11856] Spurious "accounting not enabled: enable feature@userobj_accounting in pool" message

• Status: Resolved
• Project: Lustre
• Type: Bug
• Priority: Minor
• Reporter: Jeff Johnson (Inactive)
• Assignee: Nathaniel Clark
• Resolution: Cannot Reproduce
• Severity: 3

Description

Upon upgrading spl/zfs to 0.7.9 the existing pools needed to be upgraded and were upgraded to the new 0.7x on-disk format. When mounting the MDT the following error message occurs:

Lustre: 44469:0:(osd_handler.c:1196:osd_mount()) ls15-mds-00.mdt/mdt: dnode accounting not enabled: enable feature@userobj_accounting in pool

The state of the MDT pool is:

ls15-mds-00.mdt  multihost                      on                             local
ls15-mds-00.mdt  feature@async_destroy          enabled                        local
ls15-mds-00.mdt  feature@empty_bpobj            active                         local
ls15-mds-00.mdt  feature@lz4_compress           active                         local
ls15-mds-00.mdt  feature@multi_vdev_crash_dump  enabled                        local
ls15-mds-00.mdt  feature@spacemap_histogram     active                         local
ls15-mds-00.mdt  feature@enabled_txg            active                         local
ls15-mds-00.mdt  feature@hole_birth             active                         local
ls15-mds-00.mdt  feature@extensible_dataset     active                         local
ls15-mds-00.mdt  feature@embedded_data          active                         local
ls15-mds-00.mdt  feature@bookmarks              enabled                        local
ls15-mds-00.mdt  feature@filesystem_limits      enabled                        local
ls15-mds-00.mdt  feature@large_blocks           enabled                        local
ls15-mds-00.mdt  feature@large_dnode            enabled                        local
ls15-mds-00.mdt  feature@sha512                 enabled                        local
ls15-mds-00.mdt  feature@skein                  enabled                        local
ls15-mds-00.mdt  feature@edonr                  enabled                        local
ls15-mds-00.mdt  feature@userobj_accounting     active                         local 

Comments

[Peter Jones]

Nathaniel

Can you please investigate?

Thanks

Peter

[Nathaniel Clark]

I cannot generate this message spuriously.

Formatting MGT/MDT with lustre 2.9.0 ZFS 0.6.5.9 then importing to Lustre 2.10.6 ZFS 0.7.9.

I can generate the message correctly when first mounting, but after running zpool upgrade POOL, the device mounts without the error message.  I even tried with -o nosvc to see if that had some affect, to no avail.

aeonjeffj

Do you have a set of reproduction steps?