[LU-10041] osd-zfs to choose dnode size

• Type: Improvement
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.11.0, Lustre 2.10.2
• Affects Version/s: Lustre 2.10.1, Lustre 2.11.0
• Labels: zfs
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

osd-zfs should use dnode size depending on zfs property

Issue Links

• is related to: LU-10042 sanity/51b to cleanup properly

Comments

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30023
Subject: LU-10041 tests: sanity/51 to cleanup properly
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: 14f47be7897e5f57698113990136cde2d846e049

[Minh Diep]

Landed for 2.11

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/29246/
Subject: LU-10041 tests: sanity/51 to cleanup properly
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 0d5ceb891e904cc9bab3a6b5ce0944b8bab06975

[Gerrit Updater]

John L. Hammond ([e-mail]) merged in patch https://review.whamcloud.com/29770/
Subject: LU-10041 osd: osd-zfs to choose dnode size
Project: fs/lustre-release
Branch: b2_10
Current Patch Set:
Commit: db0d3c621d1cb75961a8e8e158cda6daae0fdc3d

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29770
Subject: LU-10041 osd: osd-zfs to choose dnode size
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: 1d7ad92b0ca5cba6d94ebffa269c0e63c3f59441

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/29242/
Subject: LU-10041 osd: osd-zfs to choose dnode size
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: d993de7b40cd9625b48e5361ae29f77bfceb207a

[Alex Zhuravlev]

Andreas, without the patch large dnodes won't be created as we pass DNODE_MIN_SIZE which is 512bytes.

[Andreas Dilger]

Alex, without https://review.whamcloud.com/29242 applied, if the pool is set with dnodesize=auto, will osd-zfs still use a larger dnode, or is the large dnode feature non functional without this patch? Will the unpatched version of osd-zfs use a larger dnodesize if that property is not even set to auto for the filesystem in use?

I'm trying to decide if this is only a performance enhancement and could wait a bit, or if it could cause problems for users that upgrade to 0.7.x and may need to downgrade if there is a problem and it is urgent to include this into 2.10.1.

[Gerrit Updater]

Alex Zhuravlev ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29246
Subject: LU-10041 tests: sanity/51b to cleanup properly
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 710cdcb22baa31a0ee8903f754b404e4387e48d5

[Gerrit Updater]

Alex Zhuravlev ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29242
Subject: LU-10041 osd: osd-zfs to choose dnode size
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 3e44df575d1bd14b297ce82e1247edf51115ce41