[LU-8922] deactive MDT might cause 2 dir stripes created in the same MDT.

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.10.0
• Affects Version/s: Lustre 2.8.0, Lustre 2.9.0
• Severity: 3
• Assignee: Di Wang
• Reporter: Di Wang

Description

Deactive one MDT might cause 2 stripes created in the same MDT. I will cook a patch.

[root@testnode tests]# ../utils/lfs df
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID       125368        1936      114072   2% /mnt/lustre[MDT:0]
MDT0001             : inactive device
lustre-MDT0002_UUID       125368        1720      114288   1% /mnt/lustre[MDT:2]
lustre-MDT0003_UUID       125368        1724      114284   1% /mnt/lustre[MDT:3]
lustre-OST0000_UUID       350360       13908      308980   4% /mnt/lustre[OST:0]
lustre-OST0001_UUID       350360       13912      308976   4% /mnt/lustre[OST:1]

filesystem summary:       700720       27820      617956   4% /mnt/lustre

[root@testnode tests]# ../utils/lfs mkdir -i0 -c5 /mnt/lustre/test3
[root@testnode tests]# ../utils/lfs getdirstripe /mnt/lustre/test3
lmv_stripe_count: 4 lmv_stripe_offset: 0
mdtidx		 FID[seq:oid:ver]
     0		 [0x200000400:0x6:0x0]		
     2		 [0x280000402:0x6:0x0]		
     3		 [0x2c0000403:0x6:0x0]		
     0		 [0x200000400:0x7:0x0]		

Issue Links

• is related to: LU-8985 conf-sanity test_50i: FAIL: wrong != 3 for striped_dir

Comments

[Peter Jones]

Landed for 2.10

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/24776/
Subject: LU-8922 lod: check master stripes properly
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 6dff2ce3ec91fe67c78bacdf00a708fdc97cb3d2

[Gerrit Updater]

Jinshan Xiong ([e-mail]) merged in patch https://review.whamcloud.com/25846/
Subject: Revert "LU-8922 lod: check master stripes properly"
Project: fs/lustre-release
Branch: pfl
Current Patch Set:
Commit: a25b78873ad9b7f514a957e2c889cc10e65e6941

[Gerrit Updater]

Bobi Jam ([e-mail]) uploaded a new patch: https://review.whamcloud.com/25846
Subject: Revert "LU-8922 lod: check master stripes properly"
Project: fs/lustre-release
Branch: pfl
Current Patch Set: 1
Commit: ac1eff246c388956d5ab60a1bdd3aba7c1a82646

[Gerrit Updater]

wangdi ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24776
Subject: LU-8922 lod: check master stripes properly
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: e58886102e1228ae320e5325a62b364f03856f1b

[Di Wang]

since the fix is reverted, let's re-open the ticket. It looks like test_50i needs to wait until all OSPs are deactivated before creating the striped directory.

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/24750/
Subject: Revert "LU-8922 lod: check master stripes properly"
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: b78fb445555916e380b1661546c821df14098596

[Gerrit Updater]

James Nunez ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24750
Subject: Revert "LU-8922 lod: check master stripes properly"
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5ba84c743885f4ae39c8ef20012576a09a5a503e

[Peter Jones]

Landed for 2.10

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/24247/
Subject: LU-8922 lod: check master stripes properly
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 1be03a1088d2aa583c2651435634ba336b48f939