[LU-6278] lfsck of upgraded 1.8 filesystem does not add linkEA

Related — Tue, 5 Jun 2018 16:29:25 +0000

The filesystem was formatted with 1.x, so has many inodes with IGIF FIDs. OI Scrub was run under 2.4.3 to create the OI files and lma xattrs on all files.

Running lctl lfsck_start -M myth-MDT0000 -t namespace on the MDS (even multiple times) with 2.5.3+ does not appear to create the link xattrs on directories, even though it has created link xattrs on the regular files. This means that lfs fid2path does not work properly.

There appears to be some errors that LFSCK hits (see first_failure_position below), but it does not report them to the log, so there is no way to know what is going wrong.

# lctl get_param mdd.*.lfsck_namespace
mdd.myth-MDT0000.lfsck_namespace=
name: lfsck_namespace
magic: 0xa0629d03
version: 2
status: completed
flags: scanned-once,inconsistent
param: (null)
time_since_last_completed: 233 seconds
time_since_latest_start: 349 seconds
time_since_last_checkpoint: 233 seconds
latest_start_position: 13, N/A, N/A
last_checkpoint_position: 2621440, N/A, N/A
first_failure_position: 32769, [0x8001:0x4145293e:0x0], 1051280482039016589
checked_phase1: 3104290
checked_phase2: 0
updated_phase1: 912977
updated_phase2: 0
failed_phase1: 0
failed_phase2: 0
dirs: 84295
M-linked: 0
nlinks_repaired: 0
lost_found: 0
success_count: 12
run_time_phase1: 116 seconds
run_time_phase2: 0 seconds
average_speed_phase1: 26761 items/sec
average_speed_phase2: 0 objs/sec
real-time_speed_phase1: N/A
real-time_speed_phase2: N/A
current_position: N/A

There are only useless log entries from OI Scrub instead:

00000004:10000000:1.0:1424838545.669434:0:2326:0:(osd_scrub.c:1240:osd_otable_it_preload()) OSD pre-loaded: max = 2621440, preload = 10470, rc = 0
00000004:10000000:1.0:1424838545.669464:0:2326:0:(osd_scrub.c:1240:osd_otable_it_preload()) OSD pre-loaded: max = 2621440, preload = 10471, rc = 0
00000004:10000000:1.0:1424838545.669501:0:2326:0:(osd_scrub.c:1240:osd_otable_it_preload()) OSD pre-loaded: max = 2621440, preload = 10474, rc = 0
00000004:10000000:1.0:1424838545.669773:0:2326:0:(osd_scrub.c:1240:osd_otable_it_preload()) OSD pre-loaded: max = 2621440, preload = 32769, rc = 0
00000004:10000000:1.0:1424838545.670051:0:2326:0:(osd_scrub.c:1240:osd_otable_it_preload()) OSD pre-loaded: max = 2621440, preload = 32770, rc = 0
00000004:10000000:1.0:1424838545.670686:0:2326:0:(osd_scrub.c:1240:osd_otable_it_preload()) OSD pre-loaded: max = 2621440, preload = 32775, rc = 0

The first_failure_location is a directory in the namespace:

debugfs:  ncheck 0x8001
Inode   Pathname
32769   /ROOT/backup/ruby/Music/U2
debugfs:  stat <0x8001>
Inode: 32769   Type: directory    Mode:  0500   Flags: 0x0
Generation: 1095051582    Version: 0x00000000:00000000
User:  1000   Group:  1000   Size: 4096
File ACL: 0    Directory ACL: 0
Links: 5   Blockcount: 8
Fragment:  Address: 0    Number: 0    Size: 0
 ctime: 0x4a6548f7:00000000 -- Mon Jul 20 22:49:59 2009
 atime: 0x53d6d027:01b56e18 -- Mon Jul 28 16:35:19 2014
 mtime: 0x48699a91:00000000 -- Mon Jun 30 20:46:41 2008
crtime: 0x4a6548e2:21db6948 -- Mon Jul 20 22:49:38 2009
Size of extra inode fields: 28
Extended attributes stored in inode body: 
  lma = "00 00 00 00 00 00 00 00 01 80 00 00 00 00 00 00 3e 29 45 41 00 00 00 00 " (24)
  lma: fid=[0x8001:0x4145293e:0x0] compat=0 incompat=0
BLOCKS:
(0):53248
TOTAL: 1

Whamcloud Community JIRA

[LU-6278] lfsck of upgraded 1.8 filesystem does not add linkEA