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perf(usage): 优化 admin usage records 查询性能

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- count 查询按需 JOIN，避免不必要的表关联
- 前端 onMounted 将 stats/heatmap/records/users 全部并行加载
- 调整缓存 TTL（聚合 30s->60s，列表 10s->15s）
- 为 request_candidates 添加复合索引优化 fallback/retry 查询
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fawney19
2026-02-28 15:09:21 +08:00
parent 11832edf49
commit 4fdebfc78e
5 changed files with 127 additions and 47 deletions
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src/config/constants.py
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@@ -29,8 +29,8 @@ class CacheTTL:
DASHBOARD_DAILY = 600 # 10分钟（每日统计）
# Admin usage pages (heavy DB aggregations / list queries)
ADMIN_USAGE_AGGREGATION = 30 # 30秒
ADMIN_USAGE_RECORDS = 10 # 10秒（列表页短缓存，避免轮询/重复刷新打爆 DB）
ADMIN_USAGE_AGGREGATION = 60 # 60秒（聚合统计变化不频繁，适当延长减少 DB 压力）
ADMIN_USAGE_RECORDS = 15 # 15秒（列表页短缓存，活跃请求通过轮询接口实时更新）
# Admin leaderboard (heavier, slower moving)
ADMIN_LEADERBOARD = 300 # 5分钟