[LU-11238] sanity-flr test 47 fails with “component 131075 objects allocated on 0, shouldn't on OST0”

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.0
• Affects Version/s: Lustre 2.12.0
• Labels: DNE
• Environment: DNE
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: James Nunez (Inactive)

Description

sanity-flr test_47 started failing on August 10, 2018 with Lustre version 2.11.53.66 build #3776. So far, we only see this failure for DNE testing.

From the full test session logs at https://testing.whamcloud.com/test_sets/3f6ba1b6-9dd4-11e8-87f3-52540065bddc, the following is the test_log for this test

== sanity-flr test 47: Verify mirror obj alloc ======================================================= 19:07:06 (1533928026)
striped dir -i3 -c2 /mnt/lustre/d47.sanity-flr
3+0 records in
3+0 records out
3145728 bytes (3.1 MB) copied, 0.0718565 s, 43.8 MB/s
/mnt/lustre/d47.sanity-flr/f47.sanity-flr
  lcm_layout_gen:    8
  lcm_mirror_count:  2
  lcm_entry_count:   4
    lcme_id:             65537
    lcme_mirror_id:      1
    lcme_flags:          init,prefer
    lcme_extent.e_start: 0
    lcme_extent.e_end:   2097152
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 0
      lmm_objects:
      - 0: { l_ost_idx: 0, l_fid: [0x100000000:0x4063:0x0] }

    lcme_id:             65538
    lcme_mirror_id:      1
    lcme_flags:          init,prefer
    lcme_extent.e_start: 2097152
    lcme_extent.e_end:   EOF
      lmm_stripe_count:  2
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 1
      lmm_objects:
      - 0: { l_ost_idx: 1, l_fid: [0x100010000:0x4083:0x0] }
      - 1: { l_ost_idx: 2, l_fid: [0x100020000:0x4043:0x0] }

    lcme_id:             131075
    lcme_mirror_id:      2
    lcme_flags:          init
    lcme_extent.e_start: 0
    lcme_extent.e_end:   2097152
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 0
      lmm_objects:
      - 0: { l_ost_idx: 0, l_fid: [0x100000000:0x4064:0x0] }

    lcme_id:             131076
    lcme_mirror_id:      2
    lcme_flags:          init
    lcme_extent.e_start: 2097152
    lcme_extent.e_end:   EOF
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 3
      lmm_objects:
      - 0: { l_ost_idx: 3, l_fid: [0x100030000:0x3fd9:0x0] }

 sanity-flr test_47: @@@@@@ FAIL: component 131075 objects allocated on 0,  shouldn't on OST0 

Here are logs for a few of these sanity-flr failures:
https://testing.whamcloud.com/test_sets/7470cf3e-9c95-11e8-b0aa-52540065bddc
https://testing.whamcloud.com/test_sets/3f6ba1b6-9dd4-11e8-87f3-52540065bddc
https://testing.whamcloud.com/test_sets/c116620a-9df7-11e8-b0aa-52540065bddc

Issue Links

• is related to: LU-9007 Improved object allocator for FLR composite files