[LU-11380] IOC_MDC_GETFILEINFO returns garbage stripe info for files with long names but no striping

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Labels: HSM
• Severity: 3
• Assignee: John Hammond
• Reporter: John Hammond

Description

o:~# cd /mnt//lustre
o:lustre# mcreate ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
o:lustre# lfs getstripe ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff has no stripe info
o:lustre# lfs find --stripe-count +30 .
./ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
o:lustre# lfs find --stripe-count +10000 .
./ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

In ll_dir_ioctl() we should at least zero out lmm_magic when the file has not stripe info.

Issue Links

• is related to: LU-7557 Add fid_to_string and string_to_fid functions
• is related to: LU-14429 fid2path cache in liblustreapi
• is related to: LU-11379 HSM Copytool Performance Improvements

Comments

[John Hammond]

Fixed by landing of https://review.whamcloud.com/#/c/33172/ LU-11380 llite: zero lum for stripeless files

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/36184/
Subject: LU-11380 llapi: add llapi_fid_parse() helper
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 21d671b3af09af65d38a454e677c5da9830e0c7a

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35673/
Subject: LU-11380 llapi: separate FID man pages
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 253cc7ae49f89bba919a5a570209e2629b3843c6

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/36184
Subject: LU-11380 llapi: split llapi_fid_* to separate file
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 4922c6455cb827e74ac0348e6ac50377bcb1c05f

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35673
Subject: LU-11380 llapi: separate FID functions and man pages
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 18ca9bcbb7a2ad19609c10f727addf99fd6623a0

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35648
Subject: LU-11380 llite: split llapi_fid2path() into two functions
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: f40a114ef29289e7063b54b6ab67e4243c7789ce

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34571
Subject: LU-11380 llapi: remove unused "recno" argument
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5af9c2e6be3fe5ca3ac779af85ebbb91ae253986

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/33198/
Subject: LU-11380 mdc: move empty xattr handling to mdc layer
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 0f42b388432c4b898857660197ef13a40a82cd9d

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/33172/
Subject: LU-11380 llite: zero lum for stripeless files
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: fab95b4345db3c9e4108e06a76c14bcda575e24e

[Gerrit Updater]

John L. Hammond ([e-mail]) uploaded a new patch: https://review.whamcloud.com/33215
Subject: LU-11380 hsm: streamline copytool restore handling
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 4f9999c59d1bb396a1593ecd7213b6026ea3019a