== sanity-lfsck test 18a: Find out orphan OST-object and repair it (1) ========================================================== 11:11:25 (1754406685) ##### The target MDT-object is there, but related stripe information is lost or partly lost. The LFSCK should regenerate the missing layout EA entries. ##### 2+0 records in 2+0 records out 2097152 bytes (2.1 MB, 2.0 MiB) copied, 0.0279718 s, 75.0 MB/s [0x200003ab1:0x80:0x0] /mnt/lustre/d18a.sanity-lfsck/a1/f1 lmm_stripe_count: 1 lmm_stripe_size: 4194304 lmm_pattern: raid0 lmm_layout_gen: 0 lmm_stripe_offset: 0 obdidx objid objid group 0 3219 0xc93 0x240000400 DEBUG: llapi_layout_sanity_cb: component flags=0x0, extent=[0, 1048576] DEBUG: prev component: NULL DEBUG: Component starts at 0, checking if new mirror DEBUG: Setting first_comp = true (new mirror) DEBUG: Setting prev = NULL (new mirror) DEBUG: About to check adjacency, prev=NULL DEBUG: Checking start <= end: start=0, end=1048576 DEBUG: Component validation passed, continuing DEBUG: llapi_layout_sanity_cb: component flags=0x0, extent=[1048576, 18446744073709551615] DEBUG: prev component: found DEBUG: prev component flags=0x0, extent=[0, 1048576] DEBUG: About to check adjacency, prev=exists DEBUG: Checking adjacency: prev=[0, 1048576], curr=[1048576, 18446744073709551615] DEBUG: prev flags=0x0, curr flags=0x0 DEBUG: Checking start <= end: start=1048576, end=18446744073709551615 DEBUG: Component validation passed, continuing 2+0 records in 2+0 records out 2097152 bytes (2.1 MB, 2.0 MiB) copied, 0.0399808 s, 52.5 MB/s [0x200003ab1:0x81:0x0] /mnt/lustre/d18a.sanity-lfsck/f3 lcm_layout_gen: 3 lcm_mirror_count: 1 lcm_entry_count: 2 lcme_id: 1 lcme_mirror_id: 0 lcme_flags: init lcme_extent.e_start: 0 lcme_extent.e_end: 1048576 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: [0x240000400:0xc94:0x0] } lcme_id: 2 lcme_mirror_id: 0 lcme_flags: init lcme_extent.e_start: 1048576 lcme_extent.e_end: EOF lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: raid0 lmm_layout_gen: 0 lmm_stripe_offset: 1 lmm_objects: - 0: { l_ost_idx: 1, l_fid: [0x280000400:0xae4:0x0] } Inject failure, to make the MDT-object lost its layout EA fail_loc=0x1615 fail_loc=0 The file size should be incorrect since layout EA is lost Trigger layout LFSCK on all devices to find out orphan OST-object Started LFSCK on the device lustre-MDT0000: scrub layout [0x200003ab1:0x80:0x0] /mnt/lustre/d18a.sanity-lfsck/a1/f1 lmm_stripe_count: 1 lmm_stripe_size: 4194304 lmm_pattern: raid0 lmm_layout_gen: 1 lmm_stripe_offset: 0 obdidx objid objid group 0 3219 0xc93 0x240000400 [0x200003ab1:0x81:0x0] /mnt/lustre/d18a.sanity-lfsck/f3 lcm_layout_gen: 1 lcm_mirror_count: 1 lcm_entry_count: 2 lcme_id: 1 lcme_mirror_id: 0 lcme_flags: init lcme_extent.e_start: 0 lcme_extent.e_end: 1048576 lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: raid0 lmm_layout_gen: 1 lmm_stripe_offset: 0 lmm_objects: - 0: { l_ost_idx: 0, l_fid: [0x240000400:0xc94:0x0] } lcme_id: 2 lcme_mirror_id: 0 lcme_flags: init lcme_extent.e_start: 1048576 lcme_extent.e_end: EOF lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: raid0 lmm_layout_gen: 1 lmm_stripe_offset: 1 lmm_objects: - 0: { l_ost_idx: 1, l_fid: [0x280000400:0xae4:0x0] } The file size should be correct after layout LFSCK scanning