Files
sub2api/backend/migrations/126_add_user_rpm_limit.sql
james-6-23 dc5d42addc feat(rpm): RPM 限流模块优化
P0:
- rpm_override 嵌入 Auth Cache Snapshot,消除每请求 DB 查询 (snapshot v6→v7)
- 429 RPM 响应返回 Retry-After 头(当前分钟剩余秒数)

P1:
- ClearAll 按钮直连 DELETE API,带 loading 防重复
- 新增 GET /admin/users/:id/rpm-status 管理员 RPM 用量查询端点

优化:
- checkRPM 从级联互斥改为并行取最严,user.rpm_limit 作为全局硬上限始终生效
- Override/Group 变更后自动失效 auth cache
- fail-open 语义不变,Redis 故障不阻塞业务
2026-04-23 16:34:37 +08:00

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-- Add per-user Requests-Per-Minute cap.
-- rpm_limit: 用户全局 RPM 兜底0 = 不限制)。
-- 仅当所访问分组未设置 rpm_limit 且无 user-group rpm_override 时作为兜底生效。
-- 计数键rpm:u:{user_id}:{minute}。
ALTER TABLE users ADD COLUMN IF NOT EXISTS rpm_limit integer NOT NULL DEFAULT 0;
COMMENT ON COLUMN users.rpm_limit IS '用户级 RPM 兜底上限0 表示不限制;仅当分组未设置 rpm_limit 时生效。';