# Complete - m-openai-compatible-raw-tunnel-sideband-passthrough/05_backpressure_cancel

## 완료 일시

2026-07-08

## 요약

FLOWCTRL plan 0은 1회 리뷰 루프에서 PASS로 종결됐다. S09 `backpressure-cancel` evidence로 Edge HTTP tunnel cancel/order, service tunnel backpressure/release, Node provider cancellation/body-error/sink-failure 테스트가 추가 및 검증됐다.

## 루프 이력

| Plan | Review | Verdict | 메모 |
|------|--------|---------|------|
| `plan_local_G08_0.log` | `code_review_local_G08_0.log` | PASS | Required/Suggested 없음. SDD S09 Evidence Map 충족 확인. |

## 구현/정리 내용

- `apps/edge/internal/openai/server_test.go`에 passthrough/sideband tunnel write failure, timeout, provider error, slow client, context cancel fixture를 추가했다.
- `apps/edge/internal/service/run_dispatch_internal_test.go`에 provider tunnel router full-buffer backpressure, close unblock, END+Close release exactly-once 테스트를 추가했다.
- `apps/node/internal/adapters/openai_compat/openai_compat_test.go`와 `apps/node/internal/adapters/vllm/vllm_test.go`에 ordered terminal semantics, cancellation error, body read error, sink write failure upstream teardown 검증을 보강했다.

## 최종 검증

- `go test -count=1 ./apps/edge/internal/openai -run 'TestChatCompletionsPassthrough.*(Cancel|WriteFailure|ProviderError|ByteIdentity)|TestChatCompletionsPassthroughSideband.*(Cancel|WriteFailure)' -v` - PASS; targeted Edge OpenAI tunnel tests passed.
- `go test -count=1 ./apps/edge/internal/service -run 'TestProviderTunnel.*(Backpressure|Release|Close)' -v` - PASS; targeted service tunnel tests passed.
- `go test -count=1 ./apps/node/internal/adapters/openai_compat ./apps/node/internal/adapters/vllm -run 'Test(OpenAICompat|Vllm)TunnelProvider' -v` - PASS; targeted Node adapter tunnel tests passed.
- `go test -count=1 ./apps/edge/internal/openai ./apps/edge/internal/service` - PASS; `ok iop/apps/edge/internal/openai 1.821s`, `ok iop/apps/edge/internal/service 0.902s`.
- `go test -count=1 ./apps/node/internal/adapters/openai_compat ./apps/node/internal/adapters/vllm` - PASS; `ok iop/apps/node/internal/adapters/openai_compat 0.123s`, `ok iop/apps/node/internal/adapters/vllm 0.123s`.
- `go test -count=1 -race ./apps/edge/internal/openai ./apps/edge/internal/service` - PASS; `ok iop/apps/edge/internal/openai 2.966s`, `ok iop/apps/edge/internal/service 1.945s`.
- `git diff --check` - PASS; no output.

## Roadmap Completion

- Milestone: `agent-roadmap/phase/routing-policy-model-orchestration/milestones/openai-compatible-raw-tunnel-sideband-passthrough.md`
- Milestone link: [Milestone 문서](agent-roadmap/phase/routing-policy-model-orchestration/milestones/openai-compatible-raw-tunnel-sideband-passthrough.md)
- Completed task ids:
  - `backpressure-cancel`: PASS; evidence=`agent-task/archive/2026/07/m-openai-compatible-raw-tunnel-sideband-passthrough/05_backpressure_cancel/plan_local_G08_0.log`, `agent-task/archive/2026/07/m-openai-compatible-raw-tunnel-sideband-passthrough/05_backpressure_cancel/code_review_local_G08_0.log`; verification=`go test -count=1 ./apps/edge/internal/openai ./apps/edge/internal/service`, `go test -count=1 ./apps/node/internal/adapters/openai_compat ./apps/node/internal/adapters/vllm`, `go test -count=1 -race ./apps/edge/internal/openai ./apps/edge/internal/service`, `git diff --check`
- Not completed task ids: 없음

## 잔여 Nit

- 없음

## 후속 작업

- 없음
