feat(lps): 재시도/못찾음 완결 로직 — 재정제 루프 + not_found + 네거티브 캐시

'못 찾음'을 유한하게 종료. 두 재시도 축을 분리(기술=큐 attempts/백오프,
검색어=refine 라운드). not_found 는 정상 종료(DONE)지 dead-letter 아님.

- ai/keyword: LLM 검색어 생성(정밀/광역) — 원본 0매칭 시에만 지연 호출(비용 절약)
- handler: 한정 재정제 루프(원본→정밀→광역, max_rounds=3) + 명시적 outcome(found/not_found)
  · 0매칭+소스정상 → 다음 라운드, 0매칭+기술실패 → raise(큐 재시도)
  · 라운드 소진 → not_found + 네거티브 캐시 기록
- negative_cache: search_negative 테이블 + TTL(24h) upsert — 같은 상품 재요청 재검색 차단
- worker_main: OPENAI 있으면 judge+keyword_gen ON, neg_cache 상시
- tests: 재정제/not_found/캐시히트/기술실패/캐시CRUD 11건 → 전체 39/39
- 라이브: 없는상품 3라운드→not_found(30s), 재요청 캐시히트(0.00s)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
민헌 2026-07-09 09:12:47 +09:00
parent b0a86b9720
commit d54dee4f24
7 changed files with 326 additions and 87 deletions

View File

@ -50,3 +50,19 @@ class job(MAIN_BASE):
postgresql_where=text("status IN (1, 2) AND dedupe_key IS NOT NULL"),
),
)
class search_negative(MAIN_BASE):
"""네거티브 캐시 — '검색해도 없더라'를 TTL 동안 기억해 재검색 낭비를 막는다.
until 지나면 자동 무효(재도전 허용 나중에 입고될 있으므로)."""
@staticmethod
def DBType():
return DBType.MAIN.value
__tablename__ = "search_negative"
key = Column(String(300), primary_key=True) # 보통 product_code(없으면 query)
until = Column(DateTime(timezone=True), nullable=False) # 이 시각까지 not_found 로 간주
reason = Column(String(200), nullable=True) # 종료 사유 메모(관측)
created_at = Column(DateTime(timezone=True), nullable=False, server_default=text("now()"))

View File

@ -0,0 +1,47 @@
"""네거티브 캐시 CRUD — not_found 결론을 TTL 동안 기억.
같은 상품 재요청이 즉시 재검색(브라우저+API+LLM 비용)하는 것을 막는다.
TTL 만료 후에는 다시 검색 허용(입고 가능성). key 보통 product_code."""
from sqlalchemy import text
from common.database.db_session_manager import DB_SESSION_MNG
from common.enums import DBType, DBWRType
class NegativeCache:
DB = DBType.MAIN.value
async def is_negative(self, key: str) -> bool:
"""key 가 아직 유효한 not_found 로 캐시돼 있으면 True."""
if not key:
return False
s = await DB_SESSION_MNG.start_session(self.DB, DBWRType.DB_READ.value)
try:
row = (await s.execute(
text("SELECT 1 FROM search_negative WHERE key = :k AND until > now()"),
{"k": key},
)).first()
return row is not None
finally:
await DB_SESSION_MNG.end_session(self.DB, DBWRType.DB_READ.value)
async def put(self, key: str, ttl_sec: int = 86400, reason: str = "not_found"):
"""key 를 ttl_sec 동안 not_found 로 기록(upsert)."""
if not key:
return
sql = text("""
INSERT INTO search_negative (key, until, reason)
VALUES (:k, now() + make_interval(secs => :ttl), :r)
ON CONFLICT (key) DO UPDATE
SET until = EXCLUDED.until, reason = EXCLUDED.reason, created_at = now()
""")
s = await DB_SESSION_MNG.start_session(self.DB, DBWRType.DB_WRITE.value)
try:
await s.execute(sql, {"k": key, "ttl": ttl_sec, "r": reason[:200]})
await s.commit()
except Exception:
await s.rollback()
raise
finally:
await DB_SESSION_MNG.end_session(self.DB, DBWRType.DB_WRITE.value)

View File

@ -0,0 +1,50 @@
"""LLM 검색어 생성 — 재정제 라운드용 정밀/광역 쿼리 생성.
원본 검색어가 0매칭일 사용한다:
- precise: 모델명/규격을 반영한 정밀 검색어("스탠리 텀블러" "스탠리 퀜처 887ml") 매칭률
- broad: 핵심 상품 명사만 남긴 광역 검색어 정밀도 0건이면 폭넓게 최종 확인
레퍼런스 keyword_maker 규칙(모델명 우선, 일반 카테고리어 제거) structured output 으로 이식.
"""
import os
from openai import AsyncOpenAI
from pydantic import BaseModel, Field
from common.logger import LOG
_SYSTEM = (
"너는 커머스 검색어 생성기다. 상품 정보를 받아 쇼핑몰 검색창에 넣을 한국어 검색어 2개를 만든다.\n"
"- precise: 모델명(있으면 최우선)과 핵심 규격(용량/사이즈/개입 등)을 포함한 정밀 검색어. "
"동일 상품을 정확히 찾기 위함. 일반 카테고리 단어만 나열하지 말 것.\n"
"- broad: 핵심 상품 명사(브랜드+제품군) 위주의 광역 검색어. precise 가 0건일 때 폭넓게 찾기 위함.\n"
"검색어에 따옴표/특수문자/불필요한 수식어를 넣지 말 것."
)
class Keywords(BaseModel):
precise: str = Field(description="모델/규격 포함 정밀 검색어")
broad: str = Field(description="핵심 명사 위주 광역 검색어")
class KeywordGenerator:
def __init__(self, model: str = "gpt-4o-mini", api_key: str | None = None):
self._model = model
self._client = AsyncOpenAI(api_key=api_key or os.environ.get("OPENAI_API_KEY"))
async def generate(self, target: dict) -> Keywords:
user = (
f"상품명: {target.get('product_name', '')}\n"
f"모델: {target.get('model', '')}\n"
f"규격: {target.get('specification', '')}\n"
f"제조사/브랜드: {target.get('company', '')}"
)
resp = await self._client.beta.chat.completions.parse(
model=self._model,
messages=[{"role": "system", "content": _SYSTEM}, {"role": "user", "content": user}],
response_format=Keywords,
temperature=0,
)
kw = resp.choices[0].message.parsed or Keywords(precise="", broad="")
LOG.d(f"[ai] 검색어 생성 precise={kw.precise!r} broad={kw.broad!r}")
return kw

View File

@ -0,0 +1,36 @@
"""네거티브 캐시 CRUD 테스트 (실 lps_db)."""
import pytest_asyncio
from sqlalchemy import text
from crud.negative_cache import NegativeCache
@pytest_asyncio.fixture
async def nc(db_engine):
async with db_engine.begin() as conn:
await conn.execute(text("TRUNCATE search_negative"))
return NegativeCache()
async def test_put_then_is_negative(nc):
assert await nc.is_negative("P1") is False
await nc.put("P1", ttl_sec=3600)
assert await nc.is_negative("P1") is True
async def test_expired_is_not_negative(nc):
await nc.put("P2", ttl_sec=-1) # 이미 만료
assert await nc.is_negative("P2") is False
async def test_upsert_refreshes_ttl(nc):
await nc.put("P3", ttl_sec=-1) # 만료 상태
assert await nc.is_negative("P3") is False
await nc.put("P3", ttl_sec=3600) # 갱신 → 유효
assert await nc.is_negative("P3") is True
async def test_empty_key_is_noop(nc):
await nc.put("", ttl_sec=3600)
assert await nc.is_negative("") is False

View File

@ -1,4 +1,4 @@
"""다중 소스 검색 핸들러 테스트 — 병합·소스별 실패 격리·전체 실패 시 잡 실패 (fake 어댑터)."""
"""검색 핸들러 테스트 — 병합·실패격리·AI판정·재정제 루프·not_found·네거티브 캐시 (fake 의존성)."""
import pytest
@ -8,59 +8,23 @@ from worker.handlers import build_search_handler
class FakeAdapter:
def __init__(self, source, products=None, fail=False):
def __init__(self, source, by_query=None, products=None, fail=False):
self.source = source
self._by_query = by_query # {query: [products]}
self._products = products or []
self._fail = fail
self.calls = []
async def search(self, query, limit=40):
self.calls.append(query)
if self._fail:
raise AdapterError("boom", source=self.source, blocked=True)
if self._by_query is not None:
return self._by_query.get(query, [])
return self._products
def _np(source, price):
return NormalizedProduct(source=source, name=f"{source}-{price}", price=price)
def _job():
return {"job_type": JobType.SEARCH.value, "attempts": 1, "payload": {"product_name": "x"}}
async def test_merges_and_ranks_across_sources():
adapters = {
"coupang": FakeAdapter("coupang", [_np("coupang", 3000), _np("coupang", 1000)]),
"naver": FakeAdapter("naver", [_np("naver", 2000), _np("naver", 500)]),
}
r = await build_search_handler(adapters, top_n=3)(_job())
assert r["lowest"]["price"] == 500 and r["lowest"]["source"] == "naver"
assert [p["price"] for p in r["top"]] == [500, 1000, 2000]
assert r["sources"]["coupang"]["count"] == 2 and r["sources"]["naver"]["count"] == 2
async def test_isolates_single_source_failure():
adapters = {
"coupang": FakeAdapter("coupang", fail=True),
"naver": FakeAdapter("naver", [_np("naver", 900)]),
}
r = await build_search_handler(adapters)(_job())
assert "error" in r["sources"]["coupang"] # 실패 격리
assert r["sources"]["naver"]["count"] == 1
assert r["lowest"]["price"] == 900 # 성공 소스로 결과 산출
async def test_all_sources_fail_raises():
adapters = {
"coupang": FakeAdapter("coupang", fail=True),
"naver": FakeAdapter("naver", fail=True),
}
with pytest.raises(RuntimeError):
await build_search_handler(adapters)(_job())
class FakeJudge:
"""가격 조건으로 매칭을 흉내내는 판정기(실제 OpenAI 호출 없음)."""
def __init__(self, predicate):
self._pred = predicate
@ -70,10 +34,89 @@ class FakeJudge:
for i, c in enumerate(candidates)]
class FakeKeywordGen:
def __init__(self, precise="", broad=""):
self._p, self._b = precise, broad
async def generate(self, target):
from services.ai.keyword import Keywords
return Keywords(precise=self._p, broad=self._b)
class FakeNegCache:
def __init__(self, negative=False):
self._neg = negative
self.puts = []
async def is_negative(self, key):
return self._neg
async def put(self, key, ttl_sec=86400, reason="x"):
self.puts.append(key)
def _np(source, price):
return NormalizedProduct(source=source, name=f"{source}-{price}", price=price)
def _job(**payload):
payload.setdefault("product_name", "x")
return {"job_type": JobType.SEARCH.value, "attempts": 1, "payload": payload}
# ── 병합 / 실패격리 / AI 판정 (round 0) ─────────────────────────────
async def test_merges_and_ranks_across_sources():
adapters = {
"coupang": FakeAdapter("coupang", products=[_np("coupang", 3000), _np("coupang", 1000)]),
"naver": FakeAdapter("naver", products=[_np("naver", 2000), _np("naver", 500)]),
}
r = await build_search_handler(adapters, top_n=3)(_job())
assert r["outcome"] == "found" and r["lowest"]["price"] == 500
assert [p["price"] for p in r["top"]] == [500, 1000, 2000]
async def test_isolates_single_source_failure_but_still_found():
adapters = {"coupang": FakeAdapter("coupang", fail=True), "naver": FakeAdapter("naver", products=[_np("naver", 900)])}
r = await build_search_handler(adapters)(_job())
assert r["outcome"] == "found" and r["lowest"]["price"] == 900
assert "error" in r["sources"]["coupang"]
async def test_ai_judge_filters_non_matches():
adapters = {"naver": FakeAdapter("naver", [_np("naver", 1000), _np("naver", 2000), _np("naver", 3000)])}
judge = FakeJudge(lambda c: c.price == 2000) # 2000 만 '같은 상품'
r = await build_search_handler(adapters, judge=judge)(_job())
assert [p["price"] for p in r["top"]] == [2000] # 비매칭 제거됨
ai_stage = next(s for s in r["stages"] if s["stage"] == "ai_match")
assert ai_stage["in"] == 3 and ai_stage["out"] == 1
adapters = {"naver": FakeAdapter("naver", products=[_np("naver", 1000), _np("naver", 2000), _np("naver", 3000)])}
r = await build_search_handler(adapters, judge=FakeJudge(lambda c: c.price == 2000))(_job())
assert [p["price"] for p in r["top"]] == [2000]
assert next(s for s in r["stages"] if s["stage"] == "ai_match")["out"] == 1
# ── 재정제 루프 ────────────────────────────────────────────────────
async def test_refines_to_precise_query_when_original_empty():
adapters = {"naver": FakeAdapter("naver", by_query={"스탠리 퀜처 887ml": [_np("naver", 40000)]})} # 원본은 0건
kw = FakeKeywordGen(precise="스탠리 퀜처 887ml", broad="스탠리 텀블러")
r = await build_search_handler(adapters, keyword_gen=kw)(_job(product_name="스탠리 텀블러"))
assert r["outcome"] == "found" and r["round"] == "precise" and r["rounds_tried"] == 2
assert r["lowest"]["price"] == 40000
async def test_not_found_after_all_rounds_and_caches():
adapters = {"naver": FakeAdapter("naver", by_query={})} # 어떤 쿼리든 0건
kw = FakeKeywordGen(precise="P", broad="B")
neg = FakeNegCache()
r = await build_search_handler(adapters, keyword_gen=kw, neg_cache=neg)(_job(product_code="PC1", product_name="없는상품"))
assert r["outcome"] == "not_found" and r["rounds_tried"] == 3
assert r["lowest"] is None and r["top"] == []
assert neg.puts == ["PC1"] # 네거티브 캐시에 기록
async def test_negative_cache_short_circuits():
adapters = {"naver": FakeAdapter("naver", products=[_np("naver", 100)])}
neg = FakeNegCache(negative=True)
r = await build_search_handler(adapters, neg_cache=neg)(_job(product_code="PC9"))
assert r["outcome"] == "not_found" and r["cached"] is True
assert adapters["naver"].calls == [] # 재검색 안 함
async def test_technical_failure_with_zero_match_raises():
adapters = {"coupang": FakeAdapter("coupang", fail=True), "naver": FakeAdapter("naver", by_query={})}
with pytest.raises(RuntimeError):
await build_search_handler(adapters)(_job()) # 0매칭 + 차단 → 기술 재시도

View File

@ -1,8 +1,16 @@
"""잡 핸들러 — job_type 별 처리. 현재는 SEARCH(검색)만.
검색 핸들러: 여러 소스 어댑터를 동시 검색 병합 코어 파이프라인(필터·이상치·top-N 최저가).
소스별 실패는 격리한다( 소스가 죽어도 나머지로 결과 산출). 모든 소스 실패 시에만 실패(재시도).
AI 유사도 판정은 파이프라인 슬롯에 준비 결합한다.
검색 핸들러 = 한정된 재정제 루프 + 명시적 outcome:
0. 네거티브 캐시 확인(최근 not_found면 즉시 반환)
라운드(원본 정밀(LLM) 광역, 최대 max_rounds):
소스 동시 검색 필터 이상치 AI 같은상품 판정
매칭 있음 DONE(outcome=found), 조기 종료
0매칭 + 기술적 실패(차단/예외) 있음 raise 큐가 전체 백오프 재시도(소진 DEAD)
0매칭 + 소스 정상 다음 라운드
라운드 소진 DONE(outcome=not_found) + 네거티브 캐시 기록
재시도 축을 분리한다: 기술적( attempts/백오프) 검색어(refine 라운드, 유한).
'못 찾음' 정상 종료(DONE) dead-letter 아니다.
"""
import asyncio
@ -20,52 +28,87 @@ def build_search_handler(
limit: int = 40,
top_n: int = 5,
judge=None,
keyword_gen=None,
max_rounds: int = 3,
neg_cache=None,
):
"""검색 핸들러 생성. adapters = {source: SearchAdapter}. sources 미지정 시 전체 사용.
judge(SimilarityJudge) 주입 필터 ·top-N 앞에 '같은 상품' AI 판정을 끼운다(없으면 생략)."""
"""검색 핸들러 생성.
judge: SimilarityJudge(같은 상품 판정) / keyword_gen: KeywordGenerator(정밀·광역 재검색어) /
neg_cache: NegativeCache(TTL not_found 캐시). 모두 선택 없으면 해당 단계 생략."""
use = list(sources) if sources else list(adapters.keys())
async def _search_round(query: str):
"""한 라운드: 모든 소스 동시 검색 → (products, per_source, tech_failed)."""
results = await asyncio.gather(*[adapters[s].search(query, limit=limit) for s in use], return_exceptions=True)
products, per_source, tech_failed = [], {}, False
for src, res in zip(use, results):
if isinstance(res, Exception):
tech_failed = True
per_source[src] = {"error": f"{type(res).__name__}: {res}"}
LOG.w(f"[{src}] 검색 실패: {type(res).__name__}: {res}")
else:
products.extend(res)
per_source[src] = {"count": len(res)}
return products, per_source, tech_failed
async def _round_queries(base_query: str, target: dict):
"""라운드 쿼리 지연 생성: 원본 → (0매칭 시에만 LLM 호출로) 정밀 → 광역."""
yield ("original", base_query)
if keyword_gen is not None:
kw = await keyword_gen.generate(target) # 원본이 실패해 여기까지 온 경우에만 호출됨
seen = {base_query}
for label, q in (("precise", kw.precise), ("broad", kw.broad)):
q = (q or "").strip()
if q and q not in seen:
seen.add(q)
yield (label, q)
async def handler(job: dict) -> dict:
if job["job_type"] != JobType.SEARCH.value:
raise ValueError(f"unsupported job_type: {job['job_type']}")
payload = job.get("payload") or {}
query = (payload.get("product_name") or "").strip()
if not query:
base_query = (payload.get("product_name") or "").strip()
if not base_query:
raise ValueError("empty product_name")
target = {k: payload.get(k, "") for k in ("product_name", "model", "specification", "company")}
base_price = parse_price(payload.get("price"))
cache_key = payload.get("product_code") or base_query
# 소스 동시 검색 (실패는 예외로 수거해 격리)
results = await asyncio.gather(
*[adapters[s].search(query, limit=limit) for s in use],
return_exceptions=True,
)
# 0) 네거티브 캐시 — 최근 not_found면 재검색 생략
if neg_cache is not None and await neg_cache.is_negative(cache_key):
return {"outcome": "not_found", "cached": True, "query": base_query,
"rounds_tried": 0, "lowest": None, "top": [], "stages": [], "sources": {}}
products = []
per_source: dict[str, dict] = {}
for src, res in zip(use, results):
if isinstance(res, Exception):
LOG.w(f"[{src}] 검색 실패: {type(res).__name__}: {res}")
per_source[src] = {"error": f"{type(res).__name__}: {res}"}
else:
products.extend(res)
per_source[src] = {"count": len(res)}
rounds_done = 0
last_stages, last_sources = [], {}
async for label, query in _round_queries(base_query, target):
if rounds_done >= max_rounds:
break
rounds_done += 1
if not products and all("error" in v for v in per_source.values()):
raise RuntimeError(f"모든 소스 검색 실패: {per_source}") # 잡 실패 → 재시도
products, per_source, tech_failed = await _search_round(query)
candidates, stages = apply_filters(products, base_price=base_price)
if judge is not None and candidates:
verdicts = await judge.judge(target, candidates)
matched = [c for c, v in zip(candidates, verdicts) if v.is_match]
stages.append({"stage": "ai_match", "in": len(candidates), "out": len(matched)})
candidates = matched
last_stages, last_sources = stages, per_source
# 필터(mall·밴드·이상치) → [AI 유사도 판정] → top-N 최저가
candidates, stages = apply_filters(products, base_price=base_price)
if judge is not None and candidates:
target = {k: payload.get(k, "") for k in ("product_name", "model", "specification", "company")}
verdicts = await judge.judge(target, candidates)
matched = [c for c, v in zip(candidates, verdicts) if v.is_match]
stages.append({"stage": "ai_match", "in": len(candidates), "out": len(matched)})
candidates = matched
if candidates: # 찾음 → 조기 종료
result = rank_result(candidates, len(products), stages, top_n)
result.update(outcome="found", query=query, round=label, rounds_tried=rounds_done, sources=per_source)
return result
result = rank_result(candidates, len(products), stages, top_n)
result["query"] = query
result["sources"] = per_source # 소스별 건수/에러 (관측)
if tech_failed: # 0매칭인데 소스가 죽어 있었음 → '없음'이라 단정 불가 → 기술 재시도
raise RuntimeError(f"기술적 실패로 0매칭(round={label}) — 잡 재시도: {per_source}")
# 모든 라운드 클린 0매칭 → 정상 not_found 종료
if neg_cache is not None:
await neg_cache.put(cache_key, reason=f"not_found after {rounds_done} rounds")
result = rank_result([], 0, last_stages, top_n)
result.update(outcome="not_found", query=base_query, rounds_tried=rounds_done, sources=last_sources)
return result
return handler

View File

@ -11,9 +11,11 @@ import os
from common.logger import LOG
from config.server_configs import web_server_config
from crud.job_crud import JobQueue
from crud.negative_cache import NegativeCache
from services.search.coupang.adapter import CoupangAdapter
from services.search.naver.adapter import NaverAdapter
from services.ai.similarity import SimilarityJudge
from services.ai.keyword import KeywordGenerator
from worker.handlers import build_search_handler
from worker.notify import JobListener
from worker.runner import Worker, run_reaper
@ -25,10 +27,12 @@ async def main(concurrency: int = 1):
queue = JobQueue()
# 쿠팡(브라우저, 무거움) + 네이버(오픈API, 가벼움) 동시 검색 → 병합 최저가
adapters = {"coupang": CoupangAdapter(headless=False), "naver": NaverAdapter()}
# OPENAI_API_KEY 있으면 '같은 상품' AI 판정 활성화(없으면 기계적 최저가만)
judge = SimilarityJudge() if os.environ.get("OPENAI_API_KEY") else None
LOG.i(f"AI 유사도 판정: {'ON' if judge else 'OFF(키 없음)'}")
handler = build_search_handler(adapters, judge=judge)
# OPENAI_API_KEY 있으면 '같은 상품' AI 판정 + 재검색어 생성 활성화
has_openai = bool(os.environ.get("OPENAI_API_KEY"))
judge = SimilarityJudge() if has_openai else None
keyword_gen = KeywordGenerator() if has_openai else None
LOG.i(f"AI(판정+검색어생성): {'ON' if has_openai else 'OFF(키 없음)'}")
handler = build_search_handler(adapters, judge=judge, keyword_gen=keyword_gen, neg_cache=NegativeCache())
stop = asyncio.Event()
listeners: list[JobListener] = []