# Complete - m-provider-resource-admission-ownership-alignment/07+03_snapshot_source

## 완료 일시

2026-07-19T12:46:47Z

## 요약

provider snapshot의 lease/candidate-pressure source와 public reader 동시성 증거를 7회 리뷰 루프 끝에 확정했으며 최종 판정은 PASS다.

## 루프 이력

| Plan | Review | Verdict | 메모 |
|------|--------|---------|------|
| `plan_local_G05_0.log` | `code_review_local_G05_0.log` | FAIL | actual normal/long waiter lifecycle과 concurrent refresh evidence 보완 필요 |
| `plan_local_G06_1.log` | `code_review_local_G06_1.log` | FAIL | runtime policy race와 production snapshot/live resolver 검증 공백 |
| `plan_local_G06_2.log` | `code_review_local_G06_2.log` | FAIL | runtime config와 queue pressure의 torn snapshot 재현 |
| `plan_local_G06_3.log` | `code_review_local_G06_3.log` | FAIL | exact old/new tuple과 bounded failure collection 미충족 |
| `plan_local_G05_4.log` | `code_review_local_G06_4.log` | FAIL | public reader lock 획득과 provider별 exact presence/state 증거 미충족 |
| `plan_local_G06_5.log` | `code_review_local_G06_5.log` | FAIL | reader/writer 실제 경합과 bounded completion cleanup 미충족 |
| `plan_local_G06_6.log` | `code_review_local_G06_6.log` | PASS | public reader barrier, exact old/new tuple, terminal drain과 fresh 통합 검증 충족 |

## 구현/정리 내용

- `ListNodeSnapshots()`와 runtime config writer가 `queue → service` lock order에서 하나의 old/new provider snapshot으로 선형화되도록 정렬했다.
- provider 일반·long in-flight는 lease state에서, queued/long_queued는 live candidate pressure에서 읽고 cross-model lifecycle·resolver error·concurrent refresh 회귀를 public snapshot surface로 검증했다.
- public reader가 queue lock을 실제 보유한 상태에서 writer를 대기시키는 deterministic barrier, explicit completion timeout, waiter terminal drain과 최종 lease/resource zero assertion을 추가했다.
- 리뷰 중 호출자가 없는 timeout helper 두 개를 제거해 테스트 설명과 실제 구현을 일치시켰다.

## 최종 검증

- `gofmt -d apps/edge/internal/service/status_provider_test.go` - PASS; 출력 없음.
- `git diff --check -- apps/edge/internal/service/status_provider_test.go` - PASS; 출력 없음.
- `if rg --sort path -n 'buildSnapshotLocked\(' apps/edge/internal/service/status_provider_test.go; then exit 1; fi` - PASS; direct internal snapshot 호출 없음.
- `GOCACHE=/tmp/iop-go-cache-provider-snapshot-review7 go test -count=20 -timeout 60s ./apps/edge/internal/service -run '^TestProviderSnapshot(RuntimeRefreshIsOldOrNew|ConcurrentRefreshPressureUsesLiveCandidates)$'` - PASS; `ok iop/apps/edge/internal/service`.
- `GOCACHE=/tmp/iop-go-cache-provider-snapshot-review7 go test -count=1 -timeout 60s ./apps/edge/internal/service -run '^TestProviderSnapshot(ResolverErrorDoesNotUseStaleCandidate|RuntimeRefreshIsOldOrNew|LiveCandidatePressureFollowsRefreshAcrossModelGroups|ConcurrentRefreshPressureUsesLiveCandidates|QueuedCountsCandidatePressureAcrossModelGroups|ReadsResourceState|IgnoresLegacyFallbackState)$'` - PASS; `ok iop/apps/edge/internal/service`.
- `GOCACHE=/tmp/iop-go-cache-provider-snapshot-review7 go test -race -count=5 -timeout 60s ./apps/edge/internal/service -run '^TestProviderSnapshot(RuntimeRefreshIsOldOrNew|LiveCandidatePressureFollowsRefreshAcrossModelGroups|ConcurrentRefreshPressureUsesLiveCandidates|QueuedCountsCandidatePressureAcrossModelGroups)$'` - PASS; `ok iop/apps/edge/internal/service`.
- `GOCACHE=/tmp/iop-go-cache-provider-snapshot-review8 go test -count=1 -timeout 120s ./apps/edge/...` - PASS; 모든 Edge package 통과.
- `GOCACHE=/tmp/iop-go-cache-provider-snapshot-review7 scripts/e2e-long-context-admission-smoke.sh --preflight --out-dir /tmp/iop-long-admission-smoke-provider-snapshot-review7` - BLOCKED(rc=3); config check PASS, live model/status endpoint 미가용. 별도 `capacity-smoke` 책임이며 S07 deterministic/race 완료를 막지 않는다.

## Roadmap Completion

- Milestone: `agent-roadmap/phase/operational-observability-provider-management/milestones/provider-resource-admission-ownership-alignment.md`
- Milestone link: [Milestone 문서](agent-roadmap/phase/operational-observability-provider-management/milestones/provider-resource-admission-ownership-alignment.md)
- Completed task ids:
  - `snapshot-source`: PASS; evidence=`agent-task/archive/2026/07/m-provider-resource-admission-ownership-alignment/07+03_snapshot_source/plan_local_G06_6.log`, `agent-task/archive/2026/07/m-provider-resource-admission-ownership-alignment/07+03_snapshot_source/code_review_local_G06_6.log`; verification=`go test -count=20`, targeted snapshot lifecycle, `go test -race -count=5`, `go test -count=1 -timeout 120s ./apps/edge/...`
- Not completed task ids: 없음

## 잔여 Nit

- 없음

## 후속 작업

- 없음
