Massive directory metadata operation performance decrease
(LU-14146)
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.16.0 |
| Type: | Technical task | Priority: | Minor |
| Reporter: | Lai Siyao | Assignee: | Lai Siyao |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Issue Links: |
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| Rank (Obsolete): | 9223372036854775807 | ||||
| Description |
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currently directory migration locks all stripes of parent directory, it can be changed to lock source and target parent stripe only, and with the first change in |
| Comments |
| Comment by Lai Siyao [ 19/Feb/22 ] |
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patch is on https://review.whamcloud.com/#/c/40891/ |
| Comment by Gerrit Updater [ 10/May/23 ] |
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"Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/40891/ |
| Comment by Peter Jones [ 12/May/23 ] |
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Landed for 2.16 |
| Comment by Alex Zhuravlev [ 23/May/23 ] |
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started to hit an error during sanityn using clean master branch:
== sanityn test complete, duration 197 sec =============== 19:33:43 (1684870423)
rm: cannot remove '/mnt/lustre/d80b.sanityn/migrate_dir': Directory not empty
bisection:
COMMIT TESTED PASSED FAILED COMMIT DESCRIPTION
1d6b96a1cf 1 0 1 BAD LU-15529 mdt: optimize dir migration locking
c2e5181fe1 10 10 0 GOOD LU-16221 build: modify kmodtool for rhel9
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| Comment by Lai Siyao [ 24/May/23 ] |
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I'm looking into it. |
| Comment by Alex Zhuravlev [ 24/May/23 ] |
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the good thing is that sanityn/80b seem to be working well now. |
[LU-15529]