[LU-8708] Grant shrinking disabled all the time

• Type: Improvement
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.12.0
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Oleg Drokin

Description

It appears that OBD_CONNECT_GRANT_SHRINK is not set by client at all. It was disabled all the way back in 1.8.1 time due to bz 19507 "for debugging" and never reenabled. Commit a3c09ef128651a8f041171f2d6099b3ba8d8f2c6.

I guess that was an omission and we should reenable it back?
Do we still need it in master in light of grant_param stuff? I think we still do?

Issue Links

• is related to: LU-12651 High kworker CPU usage (osc_grant_work_handler) on IDLE connections
• is related to: LU-8895 server grants clients with more grants that the clients ask
• is related to: LU-10990 Get rid of per-osc max_dirty_mb setting
• is related to: LU-3859 grant shrinker floods OST and produce a large load
• is related to: LU-11288 tgt_grant_sanity_check()) LBUG

Comments

[Peter Jones]

Landed for 2.12

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/23203/
Subject: LU-8708 osc: enable/disable OSC grant shrink
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 3e070e30a98dfebb63e016c06c3054ea136149f1

[Oleg Drokin]

This patch potentially leads to LU-11288

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/23202/
Subject: LU-8708 osc: depart grant shrinking from pinger
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: fc915a43786eaf505be515e7e812397acd7110ee

[Andreas Dilger]

Nathan, neither of these patches have landed.

[Nathan Rutman]

Is this fixed for 2.11 ("Fix Version")? Last activity was a year ago...