Files
felhom-agent/REPORT.md
T
2026-09-24 16:25:47 +02:00

30 lines
2.1 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
# REPORT — agent v0.133.0: a restore-test can never fill a box's disk (2026-09-24, R-672, R-673)
Full record: `felhom.eu/documentation/audits/r672-2026-09-24/README.md`.
## Shipped (released, not delivered)
Tag `v0.133.0` (`9bdb4da`), package sha256 `3aa30345…e69b6`, verified by anonymous download. Delivery needs the
operator's signed `agent_update` job per box.
- **Space preflight** before anything is created: free ≥ restored × 1.2 + 5 GiB, `restored` UNCOMPRESSED (vzdump
log "Total bytes written" / PBS snapshot size), thin metadata with room, off the tested guest's pool when
another eligible storage fits, unknown refuses, reported as a non-pass (`skipped`).
- **Scratch teardown retried every 10 min**; operator told once after 3 failed tries.
- **Thin pool ≥ 90 %** → immediate host report (hub v0.124.0 alarms `storage_fill_critical`, per pool per 6 h).
- **R-673:** the stale-lock sweep on the same timer, under the one-heavy-op gate.
## Red-proofs (each seen failing; files in `felhom.eu/documentation/audits/r672-2026-09-24/redproofs/`)
1. preflight removed → the 2026-09-24 restore issued again; 2. archive FILE size used → "the compressed file size
was used"; 3. timer pass a no-op → "the leaked scratch was not destroyed by the timer"; 4. sweep without the gate →
"the sweep ran while a backup held the gate"; 5. no 90 % edge → "0 report requests, want 1"; 6. every skip dropped →
"a space refusal never reached the host report". Full suite `go test ./...` green; `agent_gates.py` OK.
## Live (demo-hp, the on-demand `--selftest=restore-test`, cadence OFF)
(a) factor 10 → refused: needs 215.5 GiB, has 22.1 GiB. (b) normal margin → refused: restoring 21.1 GiB needs 30.3 GiB,
has 22.1 GiB — correct: no full restore-test fits demo-hp under 80 % pool use. (c) a forced teardown failure could not
run live (it needs a scratch guest, which (b) shows cannot be created within the 80 % rule) — unit tests only. Pool
58.99 % before and after every run; nothing created.
## Observations
1. demo-hp has no second eligible storage for a restore-test: `nvme-scratch` takes `rootdir`, but the agent holds no grant there. FILED: R-672