Details
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Bug
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Resolution: Unresolved
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Minor
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None
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None
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None
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3
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9223372036854775807
Description
MDT->MDT migrate does not update lmm_fid and it still contains old fid:
[root@devvm1 tests]# ../utils/lfs mkdir -i 1 /mnt/lustre/testdir
[root@devvm1 tests]# ../utils/lfs setstripe -E 1M -c1 -S 1M -E eof -c2 -S 4M /mnt/lustre/testdir/
[root@devvm1 tests]# touch /mnt/lustre/testdir/foo
[root@devvm1 tests]# ../utils/lfs migrate -m 0 /mnt/lustre/testdir/
[root@devvm1 tests]# ../utils/lfs getstripe -v /mnt/lustre/testdir/foo
/mnt/lustre/testdir/foo
composite_header:
lcm_magic: 0x0BD60BD0
lcm_size: 240
lcm_flags: 0
lcm_layout_gen: 2
lcm_mirror_count: 1
lcm_entry_count: 2
components:
- lcme_id: 1
lcme_mirror_id: 0
lcme_flags: init
lcme_extent.e_start: 0
lcme_extent.e_end: 1048576
lcme_offset: 128
lcme_size: 56
sub_layout:
lmm_magic: 0x0BD10BD0
lmm_seq: 0x240000403
lmm_object_id: 0x2
lmm_fid: [0x240000403:0x2:0x0]
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: [0x2c0000401:0x2:0x0] }
- lcme_id: 2
lcme_mirror_id: 0
lcme_flags: 0
lcme_extent.e_start: 1048576
lcme_extent.e_end: EOF
lcme_offset: 184
lcme_size: 56
sub_layout:
lmm_magic: 0x0BD10BD0
lmm_seq: 0x240000403
lmm_object_id: 0x2
lmm_fid: [0x240000403:0x2:0x0]
lmm_stripe_count: 2
lmm_stripe_size: 4194304
lmm_pattern: raid0
lmm_layout_gen: 0
lmm_stripe_offset: -1
[root@devvm1 tests]# ../utils/lfs path2fid /mnt/lustre/testdir/foo
[0x200000403:0x2:0x0]
[root@devvm1 tests]#
new FID is [0x200000403:0x2:0x0] while lmm_fid still contains old FID [0x240000403:0x2:0x0] from MDT1 .
the issue is similar to LU-13426 but still exists after applying LU-13426 fix.
Also it may be responsible for triggering LU-13535 in Lustre-2.12 .
