[LU-12643] PFL layout don't inherit correctly from default layout.

• Type: Bug
• Resolution: Unresolved
• Priority: Blocker
• Affects Version/s: Lustre 2.12.0
• Severity: 3
• Assignee: WC Triage
• Reporter: Alexey Lyashkov

Description

it looks PFL layout don't inherit correctly.

[root@rhel7-1 utils]# ./lfs getstripe /mnt/lustre
/mnt/lustre
stripe_count:  1 stripe_size:   1048576 pattern:       0 stripe_offset: -1

[root@rhel7-1 utils]# ./lfs setstripe -c -1 -E -1 /mnt/lustre
[root@rhel7-1 utils]# mkdir /mnt/lustre/testdir
[root@rhel7-1 utils]# ./lfs getstripe /mnt/lustre
/mnt/lustre
  lcm_layout_gen:    0
  lcm_mirror_count:  1
  lcm_entry_count:   1
    lcme_id:             N/A
    lcme_mirror_id:      N/A
    lcme_flags:          0
    lcme_extent.e_start: 0
    lcme_extent.e_end:   EOF
      stripe_count:  -1       stripe_size:   1048576       pattern:       raid0       stripe_offset: -1

/mnt/lustre/testdir
stripe_count:  1 stripe_size:   1048576 pattern:       70 stripe_offset: -1

2.12 have same bug, 2.11 inherit this layout correctly.

[root@rhel7-1 utils]# ./lfs setstripe -c -1 -E -1 /mnt/lustre
[root@rhel7-1 utils]# mkdir /mnt/lustre/testdir
[root@rhel7-1 utils]# ./lfs getstripe /mnt/lustre
/mnt/lustre
  lcm_layout_gen:    0
  lcm_mirror_count:  1
  lcm_entry_count:   1
    lcme_id:             N/A
    lcme_mirror_id:      N/A
    lcme_flags:          0
    lcme_extent.e_start: 0
    lcme_extent.e_end:   EOF
      stripe_count:  -1       stripe_size:   1048576       pattern:       raid0       stripe_offset: -1

/mnt/lustre/testdir
  lcm_layout_gen:    0
  lcm_mirror_count:  1
  lcm_entry_count:   1
    lcme_id:             N/A
    lcme_mirror_id:      N/A
    lcme_flags:          0
    lcme_extent.e_start: 0
    lcme_extent.e_end:   EOF
      stripe_count:  -1       stripe_size:   1048576       pattern:       raid0       stripe_offset: -1

Issue Links

• is related to: LU-11656 "lfs getstripe" on directory does not show default root layout
• is related to: LU-11739 Don't inherit default layout from root for new subdirectories