[LU-13709] 'lfs mkdir -i -1' may not initialize target MDTs correctly

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0, Lustre 2.12.6
• Affects Version/s: Lustre 2.12.0
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Lai Siyao

Description

When 'lfs mkdir -i -1' is used to create directory with balanced MDT usage, it may not initialize target MDTs correctly, which will cause verify_dir_param() report "stripe offset x is not in target list".

From 2.13 MDT object QoS allocation is supported, and these codes are removed, so this needs to be fixed in 2.12 only.

Comments

[Olaf Faaland]

Lai, master has more instances of "mkdir" without "-i" argument in the test suite than b2_12 does, but even in master I don't see a test that sanity checks the stripe placement; so I think https://review.whamcloud.com/39457 is still useful.  If you agree, can you review the patch?  And if you think it's redundant, let me know and I'll abandon it?  Thanks.

[Olaf Faaland]

Needs a test

[Gerrit Updater]

Olaf Faaland-LLNL ([e-mail]) uploaded a new patch: https://review.whamcloud.com/39457
Subject: LU-13709 tests: test lfs setdirstripe -c without -i
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: d89a9b49298343cb20c7ee287789130d318a3e2d

[Peter Jones]

Landed for 2.12.6

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39165/
Subject: LU-13709 utils: 'lfs mkdir -i -1' doesn't work
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 5e26fcd890bb580231c6229b254ea77b1c8357af

[Gerrit Updater]

Lai Siyao ([e-mail]) uploaded a new patch: https://review.whamcloud.com/39165
Subject: LU-13709 utils: 'lfs mkdir -i -1' doesn't work
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: a47731797a9ebbfb48b391d526d8851779200580