日K加载提速:adj_factor 覆盖索引 + 冷路径并发 + 热路径进程内缓存直返
- adj_factor 覆盖索引 (ts_code,trade_date) INCLUDE (adj_factor):根治堆碎片化 (单股 6516 行散 6516 块,满载时位图堆扫 1.5s+),Index Only Scan ~2ms; 因子查询全部改 2 列投影,lag() 窗口只取变点(6516→32 行) - preview 冷路径 2 会话 2 波并发,信息卡合并为 LEFT JOIN LATERAL 一条 - 鉴权会话 60s 进程内缓存(登出/全端登出即时失效),全站请求省 ~80ms - pvj/chipsj/stocksj/facetsj 存 model_dump_json 原串直返(与 response_model 字节一致),热路径 230-2190ms → 1-2ms;get_version 本地缓存+bump 即时可见 - 连接池 10+20;smoke_test 适配鉴权缓存
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@@ -12,7 +12,7 @@ from datetime import datetime, timedelta, timezone
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import httpx
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from sqlalchemy import delete, select
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from app.auth import hash_password, token_digest
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from app.auth import drop_session_cache, hash_password, token_digest
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from app.db import async_session, engine
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from app.main import app
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from app.models import AuthSession, Candle, User
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@@ -87,6 +87,9 @@ async def main() -> None:
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).scalar_one()
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auth_session.expires_at = datetime.now(timezone.utc) - timedelta(seconds=1)
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await db.commit()
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# 鉴权会话有 60s 进程内缓存(auth.py),会掩盖库里的过期态;
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# 清缓存模拟 TTL 已过,验证 require_user 对过期会话本身的判定
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drop_session_cache(digest=token_digest(token))
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assert (await client.get("/api/auth/me")).status_code == 401
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print("expired session: 401")
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