[LU-19493] efficiently delete a range of quota IDs for LQA/MTFL

• Type: Improvement
• Resolution: Unresolved
• Priority: Medium
• Affects Version/s: Lustre 2.17.0
• Labels: MTFL_v1_p2 quota
• Severity: 3

Epic

EX-11865

• Epic Link: Project Quota aggregation group-range
• Assignee: WC Triage
• Reporter: Andreas Dilger

Description

It should be possible to efficiently delete a range of quota IDs, using the same iteration from "lfs quota -a {-u,-g,-p} -s START -e END" to list the actual IDs in the range, and then the code from "lfs quota --delete {-u,-g,-p} ID" to delete each of the present IDs.

Otherwise, when deleting a 100k-ID LQA range that has an unknown number of in-use UID/GID/PROJID, it might need up to 300k individual "lfs quota --delete -u ID" commands to be run, which seems impractical from a usage POV (and probably very slow).

Issue Links

• is related to: LU-18222 LQA: Implement quota aggregation limits by ID range