glm-5.3-flash 0344d101d1 release-flake-investigation: the fired lock-row trigger investigated and resolved — harness-model, fixed test-side ...

Instrumentation first: the tee-before-filter capture procedure of
record (demonstrated to preserve failing messages, immediately
vindicating itself — two natural repros captured verbatim), then the
arithmetic read against lock.rs/resolution.rs (delay-only argument
confirmed for the lapse legs, corrected for the contention leg:
second-precision now_unix stamps let a ttl=1 holder's exclusion
window collapse below a second), the conditions matrix (48+ rounds:
threads, concurrency with the SQLite column, cold/warm, CPU-load
stress), mechanism probes (1.2 s delay fails deterministically on the
exact assert; 200 ms lapses 2/10, frac-dependent), and the natural
repro (2/30 loaded solo runs, exact message at properties.rs:563).

Disposition: reproduced, root cause harness-model — the engine acted
per ADR-008 §7 throughout; the pre-fix row's contention leg asserted
a live-TTL state across an unbounded wall-clock gap. Trivially
test-side, so the fix landed in-session under the AC's exception:
lock_ttl_expiry_and_reacquisition is now two-legged (300 s exclusion
leg released; the 1 s lapse leg's post-sleep asserts stay
delay-only-safe); every pinned semantic survives.

Verified: 30/30 loaded runs of the fixed row green under the exact
repro condition; sqlite + mem columns green; workspace gates green
(build, live-pg workspace tests, clippy -D warnings, fmt); taskgraph
validate green.

Watch ledger: the lock row's flag retires; the trim row stays
watch-flagged (no repro, 10 focused + 7 loaded rounds); a new single
occurrence of row_stream_ordering_equivalence under synthetic load
(message captured — the row's drain window raced the pg bridge's
incomplete channel fill) is watch-flagged for review-wave-8's flake
outcome; no ride-along fix (instrumentation-first discipline).
Tasks: release-flake-investigation -> completed with Notes + Summary;
review-wave-5 ledger dated update.

2026-10-11 01:13:05 +00:00

..

src

release-flake-investigation: the fired lock-row trigger investigated and resolved — harness-model, fixed test-side

2026-10-11 01:13:05 +00:00

tests

Wave-1 review gate: validation coverage fixes (unschedule, handle-level consumer-local entry points), ADR-008 §4 annotations (whitespace-exclusion, class scope), task check-line staleness fix (ADR-008/009/021, core-contract)

2026-10-07 16:15:48 +00:00

Cargo.toml

Contract-suite lock rows (task suite-lock-rows): two version-stamped rows discharging the lock backlog rows — lock_ttl_expiry_and_reacquisition (the ADR-008 §7 guarantee row: a held lock excludes a second acquirer (contender None); after a 1 s TTL the exclusion lapses silently — no revocation event, no error — and a second owner acquires; the original holder's post-expiry renew is refused (false, the lost-it arm); the second owner's release frees the name for a third acquirer, which consumes cleanly; tolerance-sleep posture, state outcomes only; ADR-008 §7 + ADR-019 §1, duration-guard legs cross-referenced to duration_refusal_on_non_positive_ttl) and concurrent_try_lock_loser_is_a_value (the contention posture: four sequential contenders — two owners, repeated — against a held lock all land the clean None value, never Database, never a busy-throw; the backlog row's SQLite busy-path open question answered: no divergence from the pg reference; release-then-contend cycle proves the loser path leaves no state blocking a later acquire, granted to a former loser and consumed cleanly; ADR-008 §5 + §7 + ADR-019 §1) — wired into both engines' suite targets (SQLite tokio tests, pg harness_row!s), 23 rows per column up from 21. Dispositions in Notes: no divergence found (no fix/ADR call needed), ADR-023 §2 excluded from stamps (its guard property is the duration-refusal row's, cross-referenced), the backlog parenthetical re-acquire-does-not-refresh-TTL stays engine-pinned, renew-refusal asserted after the second owner's re-acquisition (strongest form), contenders distinct-owner only (same-owner re-acquire grants per the inherited substrate shape), and one unreproducible first-cold-run pg failure recorded (message lost to truncation; 13 subsequent clean runs incl. concurrent SQLite+pg — no timing hazard identified, the lapse assertions are post-sleep state outcomes). Drive-by: alkstore-contract-suite's tokio dep gained the macros feature — a pre-existing compile break in the crate's own tests/suite_harness.rs (since 7f749ac) failed the harness target and the workspace test gate on HEAD; test-side non-event (ADR-017 §2 class 4). Verified: cargo test -p alkstore-sqlite -p alkstore-postgres green (SQLite 121+23+9, pg 189+23 vs harness server on :15432, server-less pg skips clean), workspace cargo test green (12 binaries), clippy -D warnings, fmt clean

2026-10-10 06:58:54 +00:00