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德勤 Virtual Internship / 任务 01

实习猿原创实训 · 任务 01

双系统订单事件接入

把两种来源可靠地接成一个事件层,并说明哪些记录不能进入分析。

先查看已完成的成果,再使用材料完成自己的交付。

先阅读完整成果

材料

learner/materials/dispatch-a.jsonl 阅读完整文件下载文件
{"event_id": "O0002-created", "order_ref": "O0002", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-02T07:00:00Z"}
{"event_id": "O0002-picked_up", "order_ref": "O0002", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-02T09:00:00Z"}
{"event_id": "O0002-delivered", "order_ref": "O0002", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-03T07:50:00Z"}
{"event_id": "O0004-created", "order_ref": "O0004", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-04T09:00:00Z"}
{"event_id": "O0004-picked_up", "order_ref": "O0004", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-04T11:00:00Z"}
{"event_id": "O0004-delivered", "order_ref": "O0004", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-05T07:30:00Z"}
{"event_id": "O0006-created", "order_ref": "O0006", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-06T11:00:00Z"}
{"event_id": "O0006-picked_up", "order_ref": "O0006", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-06T13:00:00Z"}
{"event_id": "O0006-delivered", "order_ref": "O0006", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-07T09:30:00Z"}
{"event_id": "O0008-created", "order_ref": "O0008", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-08T13:00:00Z"}
{"event_id": "O0008-picked_up", "order_ref": "O0008", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-08T15:00:00Z"}
{"event_id": "O0008-delivered", "order_ref": "O0008", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-09T13:50:00Z"}
{"event_id": "O0010-created", "order_ref": "O0010", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-10T07:00:00Z"}
{"event_id": "O0010-picked_up", "order_ref": "O0010", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-10T09:00:00Z"}
{"event_id": "O0010-delivered", "order_ref": "O0010", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-11T05:30:00Z"}
{"event_id": "O0012-created", "order_ref": "O0012", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-12T09:00:00Z"}
{"event_id": "O0012-picked_up", "order_ref": "O0012", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-12T11:00:00Z"}
{"event_id": "O0012-delivered", "order_ref": "O0012", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-13T07:30:00Z"}
{"event_id": "O0014-created", "order_ref": "O0014", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-01T11:00:00Z"}
{"event_id": "O0014-picked_up", "order_ref": "O0014", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-01T13:00:00Z"}
{"event_id": "O0014-delivered", "order_ref": "O0014", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-02T11:50:00Z"}
{"event_id": "O0016-created", "order_ref": "O0016", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-03T13:00:00Z"}
{"event_id": "O0016-picked_up", "order_ref": "O0016", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-03T15:00:00Z"}
{"event_id": "O0016-delivered", "order_ref": "O0016", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-04T11:30:00Z"}
{"event_id": "O0018-created", "order_ref": "O0018", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-05T07:00:00Z"}
{"event_id": "O0018-picked_up", "order_ref": "O0018", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-05T09:00:00Z"}
{"event_id": "O0020-created", "order_ref": "O0020", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-07T09:00:00Z"}
{"event_id": "O0020-picked_up", "order_ref": "O0020", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-07T11:00:00Z"}
{"event_id": "O0020-delivered", "order_ref": "O0020", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-08T09:50:00Z"}
{"event_id": "O0022-created", "order_ref": "O0022", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-09T11:00:00Z"}
{"event_id": "O0022-picked_up", "order_ref": "O0022", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-09T13:00:00Z"}
{"event_id": "O0022-delivered", "order_ref": "O0022", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-10T09:30:00Z"}
{"event_id": "O0024-created", "order_ref": "O0024", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-11T13:00:00Z"}
{"event_id": "O0024-picked_up", "order_ref": "O0024", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-11T15:00:00Z"}
{"event_id": "O0024-delivered", "order_ref": "O0024", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-12T11:30:00Z"}
{"event_id": "O0026-created", "order_ref": "O0026", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-13T07:00:00Z"}
{"event_id": "O0026-picked_up", "order_ref": "O0026", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-13T09:00:00Z"}
{"event_id": "O0026-delivered", "order_ref": "O0026", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-14T07:50:00Z"}
{"event_id": "O0028-created", "order_ref": "O0028", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-02T09:00:00Z"}
{"event_id": "O0028-picked_up", "order_ref": "O0028", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-02T11:00:00Z"}
{"event_id": "O0028-delivered", "order_ref": "O0028", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-03T07:30:00Z"}
{"event_id": "O0030-created", "order_ref": "O0030", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-04T11:00:00Z"}
{"event_id": "O0030-cancelled", "order_ref": "O0030", "hub": "海港", "service": "standard", "event": "cancelled", "event_time": "2026-09-04T12:00:00Z"}
{"event_id": "O0032-created", "order_ref": "O0032", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-06T13:00:00Z"}
{"event_id": "O0032-picked_up", "order_ref": "O0032", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-06T15:00:00Z"}
{"event_id": "O0032-delivered", "order_ref": "O0032", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-07T13:50:00Z"}
{"event_id": "O0034-created", "order_ref": "O0034", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-08T07:00:00Z"}
{"event_id": "O0034-picked_up", "order_ref": "O0034", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-08T09:00:00Z"}
{"event_id": "O0034-delivered", "order_ref": "O0034", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-09T05:30:00Z"}
{"event_id": "O0036-created", "order_ref": "O0036", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-10T09:00:00Z"}
{"event_id": "O0036-picked_up", "order_ref": "O0036", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-10T11:00:00Z"}
{"event_id": "O0036-delivered", "order_ref": "O0036", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-11T07:30:00Z"}
{"event_id": "O0038-created", "order_ref": "O0038", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-12T11:00:00Z"}
{"event_id": "O0038-picked_up", "order_ref": "O0038", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-12T13:00:00Z"}
{"event_id": "O0038-delivered", "order_ref": "O0038", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-13T11:50:00Z"}
{"event_id": "O0040-created", "order_ref": "O0040", "hub": "海港", "service": "standard", "event": "created", "event_time": "2026-09-14T21:00:00Z"}
{"event_id": "O0040-picked_up", "order_ref": "O0040", "hub": "海港", "service": "standard", "event": "picked_up", "event_time": "2026-09-14T23:00:00Z"}
{"event_id": "O0040-delivered", "order_ref": "O0040", "hub": "海港", "service": "standard", "event": "delivered", "event_time": "2026-09-15T19:30:00Z"}
{"event_id": "O0042-created", "order_ref": "O0042", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-02T07:00:00Z"}
{"event_id": "O0042-picked_up", "order_ref": "O0042", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-02T09:00:00Z"}
{"event_id": "O0042-delivered", "order_ref": "O0042", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-02T15:50:00Z"}
{"event_id": "O0044-created", "order_ref": "O0044", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-04T09:00:00Z"}
{"event_id": "O0044-picked_up", "order_ref": "O0044", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-04T11:00:00Z"}
{"event_id": "O0044-delivered", "order_ref": "O0044", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-04T17:50:00Z"}
{"event_id": "O0046-created", "order_ref": "O0046", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-06T11:00:00Z"}
{"event_id": "O0046-picked_up", "order_ref": "O0046", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-06T13:00:00Z"}
{"event_id": "O0046-delivered", "order_ref": "O0046", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-06T19:50:00Z"}
{"event_id": "O0048-created", "order_ref": "O0048", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-08T13:00:00Z"}
{"event_id": "O0048-picked_up", "order_ref": "O0048", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-08T15:00:00Z"}
{"event_id": "O0048-delivered", "order_ref": "O0048", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-08T21:50:00Z"}
{"event_id": "O0050-created", "order_ref": "O0050", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-10T07:00:00Z"}
{"event_id": "O0050-picked_up", "order_ref": "O0050", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-10T09:00:00Z"}
{"event_id": "O0050-delivered", "order_ref": "O0050", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-10T15:50:00Z"}
{"event_id": "O0052-created", "order_ref": "O0052", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-12T09:00:00Z"}
{"event_id": "O0052-picked_up", "order_ref": "O0052", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-12T11:00:00Z"}
{"event_id": "O0052-delivered", "order_ref": "O0052", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-12T17:50:00Z"}
{"event_id": "O0054-created", "order_ref": "O0054", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-01T11:00:00Z"}
{"event_id": "O0054-picked_up", "order_ref": "O0054", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-01T13:00:00Z"}
{"event_id": "O0054-delivered", "order_ref": "O0054", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-01T19:50:00Z"}
{"event_id": "O0056-created", "order_ref": "O0056", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-03T13:00:00Z"}
{"event_id": "O0056-picked_up", "order_ref": "O0056", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-03T15:00:00Z"}
{"event_id": "O0056-delivered", "order_ref": "O0056", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-03T21:50:00Z"}
{"event_id": "O0058-created", "order_ref": "O0058", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-05T07:00:00Z"}
{"event_id": "O0058-picked_up", "order_ref": "O0058", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-05T09:00:00Z"}
{"event_id": "O0060-created", "order_ref": "O0060", "hub": "海港", "service": "express", "event": "created", "event_time": "2026-09-14T21:00:00Z"}
{"event_id": "O0060-picked_up", "order_ref": "O0060", "hub": "海港", "service": "express", "event": "picked_up", "event_time": "2026-09-14T23:00:00Z"}
{"event_id": "O0060-delivered", "order_ref": "O0060", "hub": "海港", "service": "express", "event": "delivered", "event_time": "2026-09-15T05:50:00Z"}
{"event_id": "O0062-created", "order_ref": "O0062", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-02T07:00:00Z"}
{"event_id": "O0062-picked_up", "order_ref": "O0062", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-02T09:00:00Z"}
{"event_id": "O0062-delivered", "order_ref": "O0062", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-03T08:10:00Z"}
{"event_id": "O0064-created", "order_ref": "O0064", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-04T09:00:00Z"}
{"event_id": "O0064-picked_up", "order_ref": "O0064", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-04T11:00:00Z"}
{"event_id": "O0064-delivered", "order_ref": "O0064", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-05T07:30:00Z"}
{"event_id": "O0066-created", "order_ref": "O0066", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-06T11:00:00Z"}
{"event_id": "O0066-picked_up", "order_ref": "O0066", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-06T13:00:00Z"}
{"event_id": "O0066-delivered", "order_ref": "O0066", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-07T12:10:00Z"}
{"event_id": "O0068-created", "order_ref": "O0068", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-08T13:00:00Z"}
{"event_id": "O0068-picked_up", "order_ref": "O0068", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-08T15:00:00Z"}
{"event_id": "O0068-delivered", "order_ref": "O0068", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-09T11:30:00Z"}
{"event_id": "O0070-created", "order_ref": "O0070", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-10T07:00:00Z"}
{"event_id": "O0070-picked_up", "order_ref": "O0070", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-10T09:00:00Z"}
{"event_id": "O0070-delivered", "order_ref": "O0070", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-11T08:10:00Z"}
{"event_id": "O0072-created", "order_ref": "O0072", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-12T09:00:00Z"}
{"event_id": "O0072-picked_up", "order_ref": "O0072", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-12T11:00:00Z"}
{"event_id": "O0072-delivered", "order_ref": "O0072", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-13T07:30:00Z"}
{"event_id": "O0074-created", "order_ref": "O0074", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-01T11:00:00Z"}
{"event_id": "O0074-picked_up", "order_ref": "O0074", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-01T13:00:00Z"}
{"event_id": "O0074-delivered", "order_ref": "O0074", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-02T12:10:00Z"}
{"event_id": "O0076-created", "order_ref": "O0076", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-03T13:00:00Z"}
{"event_id": "O0076-picked_up", "order_ref": "O0076", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-03T15:00:00Z"}
{"event_id": "O0076-delivered", "order_ref": "O0076", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-04T11:30:00Z"}
{"event_id": "O0078-created", "order_ref": "O0078", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-05T07:00:00Z"}
{"event_id": "O0078-picked_up", "order_ref": "O0078", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-05T09:00:00Z"}
{"event_id": "O0080-created", "order_ref": "O0080", "hub": "东城", "service": "standard", "event": "created", "event_time": "2026-09-14T21:00:00Z"}
{"event_id": "O0080-picked_up", "order_ref": "O0080", "hub": "东城", "service": "standard", "event": "picked_up", "event_time": "2026-09-14T23:00:00Z"}
{"event_id": "O0080-delivered", "order_ref": "O0080", "hub": "东城", "service": "standard", "event": "delivered", "event_time": "2026-09-15T19:30:00Z"}
{"event_id": "O0082-created", "order_ref": "O0082", "hub": "东城", "service": "express", "event": "created", "event_time": "2026-09-02T07:00:00Z"}
{"event_id": "O0082-picked_up", "order_ref": "O0082", "hub": "东城", "service": "express", "event": "picked_up", "event_time": "2026-09-02T09:00:00Z"}
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learner/materials/courier-b.jsonl 阅读完整文件下载文件
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{"id": "O0001-cancelled", "shipment": {"number": "O0001", "station": "海港", "product": "standard"}, "action": "VOID", "at_ms": 1788246000000}
{"id": "O0003-created", "shipment": {"number": "O0003", "station": "海港", "product": "standard"}, "action": "OPEN", "at_ms": 1788422400000}
{"id": "BAD-EPOCH", "shipment": {"number": "O0001", "station": "海港", "product": "standard"}, "action": "OPEN", "at_ms": "yesterday"}
{"id": "BAD-SHIPMENT", "shipment": {}, "action": "OPEN", "at_ms": 1788242400000}
learner/materials/data-dictionary.md 阅读完整文件下载文件

数据字典与口径

业务工作单

你加入冷链履约运营项目组。运营负责人需要回答:哪些订单与站点需要先处理、导出接口哪里存在控制缺口,以及下一版工作台应交付什么。四个站点为海港、东城、西岭、南湾。standard 承诺 24 h,express 承诺 8 h;具体截止时间以 orders.csv 的 due_at 为准。

材料覆盖 2026 年 9 月的订单及事件,统一复盘截止点为 rules.json 的 cutoff。所有业务时间转 UTC;本地显示时可以换时区,但计算不能把无时区字符串当成本地时间。输入可包含截止点之后的事件,用于检查是否错误使用未来信息。

orders.csv

  • order_id:唯一订单号,字符串,不转成数字。
  • hub:站点名;service:standard/express;route:线路编号。
  • created_at:带时区的下单时刻;due_at:承诺交付时刻,UTC ISO 8601。
  • 一行代表一个订单,事件不等于订单;不要按事件行数统计订单。

两个事件源

  • A:event_id → event_id;order_ref → order_id;hub → hub;service → service;event → kind;event_time → happened_at。
  • B:id → event_id;shipment.number → order_id;shipment.station → hub;shipment.product → service;action 的 OPEN/COLLECT/DROP/VOID 映射 created/picked_up/delivered/cancelled;at_ms 为整数 Unix 毫秒,输出为 UTC ISO 时间。
  • 标准事件必须且只需包含 event_id、order_id、hub、service、kind、happened_at。来源文件与行号写入异常/重复清单。
  • 同 event_id 标准内容完全相同:只留一条,其他计 exact_replay。同 event_id 内容不同:整组隔离,不能先到先得。坏字段、未知动作或无时区时间:隔离并保留来源及原因。
  • 禁止原地修改原始材料。对账:原始事件数 = 标准事件数 + 隔离记录数 + 重复剔除数。

截止日履约口径

按订单聚合,先只保留 happened_at ≤ cutoff 的事件。取消单优先排除;due_at > cutoff 的非取消单记 not_mature。其他订单:截止前无交付记 overdue_open;首次交付时刻 > due_at 记 delivered_late;其余 on_time。恰好到期算成熟,恰好交付算准时。

成熟分母 = on_time + delivered_late + overdue_open。迟交分子 = delivered_late + overdue_open。取消与未到期均不得填为准时。已交付迟交分钟按交付时间减 due_at,未交付逾期分钟按 cutoff 减 due_at,两者单列。此材料不包含退款、食物损坏或实际成本,不能推出这些金额。

服务审查口径

rules.json 固定目标迟交率为 10%,最小成熟样本 15。差距用百分点,不用百分比变化。成熟样本 <15 优先归“待补样本”;差距 >15 个百分点归“优先处理”;>5 且 ≤15 归“需要复核”;≤5 归“达到阈值”。这些是本次运营审查规则,不是统计显著性或公平性的证明。

统一服务结构比较:standard 和 express 各 50% 权重。两个服务层均满足最小样本才计算站点标准化迟交率;否则保留空值并说明缺口。不得用无依据的总体平均填补小样本。业务假设须与观察事实分开。

访问日志与授权策略

access-log.csv 一行一个请求。request_id 唯一;at 为 UTC;user、session、role 为请求上下文;method、path 为路由;status 为响应码;rows、bytes 是网关响应计数。它们不证明唯一客户数,也不证明接收者已使用数据。

access-policy.json 是本次调查的授权基线。operator 只能读取被授权站点,不能 export。supervisor 与 service 允许导出。登录成功后 session 有效 30 分钟,恰好 30 分钟有效;之后应拒绝。401 请求代表被拒绝的尝试,不是成功泄露。svc-archive 是批准的归档账号,频繁大批导出不能只因次数高就定性。日志没有文件正文、终端取证或 VPN 会话记录,不能据此归属自然人、地理位置或入口路径。

learner/starter.py 阅读完整文件下载文件
"""在这些函数中实现你的答案;不要修改 materials。"""
def normalize(record, source):
    """输入来源 A/B;返回标准事件;坏记录抛 ValueError。"""
    raise NotImplementedError("先完成字段映射和 UTC 转换")

def classify_order(order, events, cutoff):
    """按截止点和取消优先规则分类。"""
    raise NotImplementedError("先过滤未来事件")

def service_band(rate, n, rules):
    """先判最小样本,再判百分点差距。"""
    raise NotImplementedError("区分百分比与百分点")
learner/smoke_test.py 阅读完整文件下载文件
import unittest
from starter import normalize, service_band
class StartingChecks(unittest.TestCase):
    def test_a_utc(self):
        r=dict(event_id='E1',order_ref='O1',hub='海港',service='express',event='created',event_time='2026-09-01T10:00:00+10:00')
        self.assertEqual(normalize(r,'A')['happened_at'],'2026-09-01T00:00:00Z')
    def test_b_epoch(self):
        r=dict(id='E1',shipment=dict(number='O1',station='海港',product='express'),action='OPEN',at_ms=0)
        self.assertEqual(normalize(r,'B')['happened_at'],'1970-01-01T00:00:00Z')
    def test_small_sample_first(self):
        rules=dict(min_sample=15,late_target=.1,review_gap_pp=5,priority_gap_pp=15)
        self.assertEqual(service_band(.9,4,rules),'待补样本')
if __name__=='__main__':unittest.main()

步骤

  1. 在副本目录打开两个 JSONL,各选一条 created/OPEN 记录,对照字典建立字段映射。先手算一个时间戳,确认毫秒与秒没有混淆。
  1. 实现 normalize:A 解析带时区时间,B 将整数毫秒转 UTC。验证动作、站点、服务等级和必需键。错误记录保留文件名、1-based 行号与原因,不静默丢弃。
  1. 先把全部有效记录按 event_id 分组,再比较标准内容。完全重播保留一条,内容冲突整组隔离;不要先写入再覆盖。
  1. 写出 canonical-events.jsonl、rejected.csv、duplicates.csv。按时间与 event_id 排序,使重复运行字节一致。
  1. 写 qa-report.md,说明原始→标准→隔离→重复的数量对账,给出一个冲突案例和重跑策略。运行 python3 smoke_test.py,再补冲突、无时区和非法 epoch 测试。

完整成果

数据接入质量报告

640 条原始记录生成 626 条标准事件,隔离 6 条,去除重播 8 条:640 = 626 + 6 + 8。

处理结论

两个来源统一为 event_id、order_id、hub、service、kind、happened_at。UTC 输出使用 Z 后缀,不依赖运行机器的本地时区。标准事件按 happened_at、event_id 排序,重复运行结果一致。

CONFLICT-01 的两条内容分别指向 Q0001 和 Q0002,整组隔离。BAD-TZ 缺时区;BAD-TYPE 动作未知;BAD-EPOCH 的时间不是整数;BAD-SHIPMENT 缺订单字段。后四条分别隔离并记录来源行号。5 条 A 重播和 3 条 B 重播仅保留首次标准内容。

下一步

先向源系统核对冲突映射,获得修正后再重新导入全批;不能按“最后一条覆盖”恢复。生产接入应增加 schema 版本、文件哈希和隔离队列告警,本次离线管道只负责可重复转换和质量对账。数量对账不替代内容正确性,测试另外覆盖时区、毫秒、冲突、重播及输入不变性。

下载文件

参考答案

instructor/answers/canonical-events.jsonl 阅读完整文件下载文件
{"event_id": "O0001-created", "order_id": "O0001", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0041-created", "order_id": "O0041", "hub": "海港", "service": "express", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0061-created", "order_id": "O0061", "hub": "东城", "service": "standard", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0081-created", "order_id": "O0081", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0121-created", "order_id": "O0121", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0157-created", "order_id": "O0157", "hub": "西岭", "service": "express", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0181-created", "order_id": "O0181", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0211-created", "order_id": "O0211", "hub": "南湾", "service": "express", "kind": "created", "happened_at": "2026-09-01T06:00:00Z"}
{"event_id": "O0001-cancelled", "order_id": "O0001", "hub": "海港", "service": "standard", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0041-cancelled", "order_id": "O0041", "hub": "海港", "service": "express", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0061-cancelled", "order_id": "O0061", "hub": "东城", "service": "standard", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0081-cancelled", "order_id": "O0081", "hub": "东城", "service": "express", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0121-cancelled", "order_id": "O0121", "hub": "西岭", "service": "standard", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0157-cancelled", "order_id": "O0157", "hub": "西岭", "service": "express", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0181-cancelled", "order_id": "O0181", "hub": "南湾", "service": "standard", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0211-cancelled", "order_id": "O0211", "hub": "南湾", "service": "express", "kind": "cancelled", "happened_at": "2026-09-01T07:00:00Z"}
{"event_id": "O0027-created", "order_id": "O0027", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-01T08:00:00Z"}
{"event_id": "O0107-created", "order_id": "O0107", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-01T08:00:00Z"}
{"event_id": "O0147-created", "order_id": "O0147", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-01T08:00:00Z"}
{"event_id": "O0207-created", "order_id": "O0207", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-01T08:00:00Z"}
{"event_id": "O0027-picked_up", "order_id": "O0027", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T10:00:00Z"}
{"event_id": "O0107-picked_up", "order_id": "O0107", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-01T10:00:00Z"}
{"event_id": "O0147-picked_up", "order_id": "O0147", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T10:00:00Z"}
{"event_id": "O0207-picked_up", "order_id": "O0207", "hub": "南湾", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T10:00:00Z"}
{"event_id": "O0014-created", "order_id": "O0014", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0054-created", "order_id": "O0054", "hub": "海港", "service": "express", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0074-created", "order_id": "O0074", "hub": "东城", "service": "standard", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0094-created", "order_id": "O0094", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0134-created", "order_id": "O0134", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0170-created", "order_id": "O0170", "hub": "西岭", "service": "express", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0194-created", "order_id": "O0194", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-01T11:00:00Z"}
{"event_id": "O0014-picked_up", "order_id": "O0014", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0054-picked_up", "order_id": "O0054", "hub": "海港", "service": "express", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0074-picked_up", "order_id": "O0074", "hub": "东城", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0094-picked_up", "order_id": "O0094", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0134-picked_up", "order_id": "O0134", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0170-picked_up", "order_id": "O0170", "hub": "西岭", "service": "express", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0194-picked_up", "order_id": "O0194", "hub": "南湾", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-01T13:00:00Z"}
{"event_id": "O0107-delivered", "order_id": "O0107", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-01T14:30:00Z"}
{"event_id": "O0054-delivered", "order_id": "O0054", "hub": "海港", "service": "express", "kind": "delivered", "happened_at": "2026-09-01T19:50:00Z"}
{"event_id": "O0094-delivered", "order_id": "O0094", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-01T20:10:00Z"}
{"event_id": "O0170-delivered", "order_id": "O0170", "hub": "西岭", "service": "express", "kind": "delivered", "happened_at": "2026-09-01T20:30:00Z"}
{"event_id": "O0027-delivered", "order_id": "O0027", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-02T06:30:00Z"}
{"event_id": "O0207-delivered", "order_id": "O0207", "hub": "南湾", "service": "standard", "kind": "delivered", "happened_at": "2026-09-02T06:30:00Z"}
{"event_id": "O0002-created", "order_id": "O0002", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0042-created", "order_id": "O0042", "hub": "海港", "service": "express", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0062-created", "order_id": "O0062", "hub": "东城", "service": "standard", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0082-created", "order_id": "O0082", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0122-created", "order_id": "O0122", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0158-created", "order_id": "O0158", "hub": "西岭", "service": "express", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0182-created", "order_id": "O0182", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0212-created", "order_id": "O0212", "hub": "南湾", "service": "express", "kind": "created", "happened_at": "2026-09-02T07:00:00Z"}
{"event_id": "O0002-picked_up", "order_id": "O0002", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0028-created", "order_id": "O0028", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0042-picked_up", "order_id": "O0042", "hub": "海港", "service": "express", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0062-picked_up", "order_id": "O0062", "hub": "东城", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0082-picked_up", "order_id": "O0082", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0108-created", "order_id": "O0108", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0122-picked_up", "order_id": "O0122", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0148-created", "order_id": "O0148", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0158-picked_up", "order_id": "O0158", "hub": "西岭", "service": "express", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0182-picked_up", "order_id": "O0182", "hub": "南湾", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0208-created", "order_id": "O0208", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0212-picked_up", "order_id": "O0212", "hub": "南湾", "service": "express", "kind": "picked_up", "happened_at": "2026-09-02T09:00:00Z"}
{"event_id": "O0134-delivered", "order_id": "O0134", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-02T09:30:00Z"}
{"event_id": "O0147-delivered", "order_id": "O0147", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-02T09:30:00Z"}
{"event_id": "O0028-picked_up", "order_id": "O0028", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-02T11:00:00Z"}
{"event_id": "O0108-picked_up", "order_id": "O0108", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-02T11:00:00Z"}
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{"event_id": "O0072-created", "order_id": "O0072", "hub": "东城", "service": "standard", "kind": "created", "happened_at": "2026-09-12T09:00:00Z"}
{"event_id": "O0092-created", "order_id": "O0092", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-12T09:00:00Z"}
{"event_id": "O0132-created", "order_id": "O0132", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-12T09:00:00Z"}
{"event_id": "O0168-created", "order_id": "O0168", "hub": "西岭", "service": "express", "kind": "created", "happened_at": "2026-09-12T09:00:00Z"}
{"event_id": "O0192-created", "order_id": "O0192", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-12T09:00:00Z"}
{"event_id": "O0012-picked_up", "order_id": "O0012", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0038-created", "order_id": "O0038", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0052-picked_up", "order_id": "O0052", "hub": "海港", "service": "express", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0072-picked_up", "order_id": "O0072", "hub": "东城", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0092-picked_up", "order_id": "O0092", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0118-created", "order_id": "O0118", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0132-picked_up", "order_id": "O0132", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0168-picked_up", "order_id": "O0168", "hub": "西岭", "service": "express", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0192-picked_up", "order_id": "O0192", "hub": "南湾", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-12T11:00:00Z"}
{"event_id": "O0024-delivered", "order_id": "O0024", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-12T11:30:00Z"}
{"event_id": "O0144-delivered", "order_id": "O0144", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-12T11:30:00Z"}
{"event_id": "O0204-delivered", "order_id": "O0204", "hub": "南湾", "service": "standard", "kind": "delivered", "happened_at": "2026-09-12T11:30:00Z"}
{"event_id": "O0038-picked_up", "order_id": "O0038", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-12T13:00:00Z"}
{"event_id": "O0118-picked_up", "order_id": "O0118", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-12T13:00:00Z"}
{"event_id": "O0105-delivered", "order_id": "O0105", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-12T15:10:00Z"}
{"event_id": "O0092-delivered", "order_id": "O0092", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-12T15:30:00Z"}
{"event_id": "O0168-delivered", "order_id": "O0168", "hub": "西岭", "service": "express", "kind": "delivered", "happened_at": "2026-09-12T15:30:00Z"}
{"event_id": "O0052-delivered", "order_id": "O0052", "hub": "海港", "service": "express", "kind": "delivered", "happened_at": "2026-09-12T17:50:00Z"}
{"event_id": "O0118-delivered", "order_id": "O0118", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-12T20:10:00Z"}
{"event_id": "O0025-delivered", "order_id": "O0025", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T04:30:00Z"}
{"event_id": "O0145-delivered", "order_id": "O0145", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T04:30:00Z"}
{"event_id": "O0205-delivered", "order_id": "O0205", "hub": "南湾", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T04:30:00Z"}
{"event_id": "O0026-created", "order_id": "O0026", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-13T07:00:00Z"}
{"event_id": "O0106-created", "order_id": "O0106", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-13T07:00:00Z"}
{"event_id": "O0146-created", "order_id": "O0146", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-13T07:00:00Z"}
{"event_id": "O0206-created", "order_id": "O0206", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-13T07:00:00Z"}
{"event_id": "O0012-delivered", "order_id": "O0012", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T07:30:00Z"}
{"event_id": "O0072-delivered", "order_id": "O0072", "hub": "东城", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T07:30:00Z"}
{"event_id": "O0192-delivered", "order_id": "O0192", "hub": "南湾", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T07:30:00Z"}
{"event_id": "O0026-picked_up", "order_id": "O0026", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T09:00:00Z"}
{"event_id": "O0106-picked_up", "order_id": "O0106", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-13T09:00:00Z"}
{"event_id": "O0146-picked_up", "order_id": "O0146", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T09:00:00Z"}
{"event_id": "O0206-picked_up", "order_id": "O0206", "hub": "南湾", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T09:00:00Z"}
{"event_id": "O0013-created", "order_id": "O0013", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0053-created", "order_id": "O0053", "hub": "海港", "service": "express", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0073-created", "order_id": "O0073", "hub": "东城", "service": "standard", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0093-created", "order_id": "O0093", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0133-created", "order_id": "O0133", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0169-created", "order_id": "O0169", "hub": "西岭", "service": "express", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0193-created", "order_id": "O0193", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-13T10:00:00Z"}
{"event_id": "O0132-delivered", "order_id": "O0132", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T10:30:00Z"}
{"event_id": "O0038-delivered", "order_id": "O0038", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-13T11:50:00Z"}
{"event_id": "O0013-picked_up", "order_id": "O0013", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0039-created", "order_id": "O0039", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0053-picked_up", "order_id": "O0053", "hub": "海港", "service": "express", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0073-picked_up", "order_id": "O0073", "hub": "东城", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0093-picked_up", "order_id": "O0093", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0119-created", "order_id": "O0119", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0133-picked_up", "order_id": "O0133", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0169-picked_up", "order_id": "O0169", "hub": "西岭", "service": "express", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0193-picked_up", "order_id": "O0193", "hub": "南湾", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T12:00:00Z"}
{"event_id": "O0039-picked_up", "order_id": "O0039", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-13T14:00:00Z"}
{"event_id": "O0119-picked_up", "order_id": "O0119", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-13T14:00:00Z"}
{"event_id": "O0106-delivered", "order_id": "O0106", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-13T16:10:00Z"}
{"event_id": "O0119-delivered", "order_id": "O0119", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-13T18:30:00Z"}
{"event_id": "O0053-delivered", "order_id": "O0053", "hub": "海港", "service": "express", "kind": "delivered", "happened_at": "2026-09-13T18:50:00Z"}
{"event_id": "O0093-delivered", "order_id": "O0093", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-13T19:10:00Z"}
{"event_id": "O0169-delivered", "order_id": "O0169", "hub": "西岭", "service": "express", "kind": "delivered", "happened_at": "2026-09-13T19:30:00Z"}
{"event_id": "O0146-delivered", "order_id": "O0146", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T05:30:00Z"}
{"event_id": "O0026-delivered", "order_id": "O0026", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T07:50:00Z"}
{"event_id": "O0013-delivered", "order_id": "O0013", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T08:30:00Z"}
{"event_id": "O0073-delivered", "order_id": "O0073", "hub": "东城", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T08:30:00Z"}
{"event_id": "O0133-delivered", "order_id": "O0133", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T08:30:00Z"}
{"event_id": "O0193-delivered", "order_id": "O0193", "hub": "南湾", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T08:30:00Z"}
{"event_id": "O0206-delivered", "order_id": "O0206", "hub": "南湾", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T08:50:00Z"}
{"event_id": "O0039-delivered", "order_id": "O0039", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-14T10:30:00Z"}
{"event_id": "O0040-created", "order_id": "O0040", "hub": "海港", "service": "standard", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0060-created", "order_id": "O0060", "hub": "海港", "service": "express", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0080-created", "order_id": "O0080", "hub": "东城", "service": "standard", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0120-created", "order_id": "O0120", "hub": "东城", "service": "express", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0156-created", "order_id": "O0156", "hub": "西岭", "service": "standard", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0180-created", "order_id": "O0180", "hub": "西岭", "service": "express", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0210-created", "order_id": "O0210", "hub": "南湾", "service": "standard", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0216-created", "order_id": "O0216", "hub": "南湾", "service": "express", "kind": "created", "happened_at": "2026-09-14T21:00:00Z"}
{"event_id": "O0210-cancelled", "order_id": "O0210", "hub": "南湾", "service": "standard", "kind": "cancelled", "happened_at": "2026-09-14T22:00:00Z"}
{"event_id": "O0040-picked_up", "order_id": "O0040", "hub": "海港", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0060-picked_up", "order_id": "O0060", "hub": "海港", "service": "express", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0080-picked_up", "order_id": "O0080", "hub": "东城", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0120-picked_up", "order_id": "O0120", "hub": "东城", "service": "express", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0156-picked_up", "order_id": "O0156", "hub": "西岭", "service": "standard", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0180-picked_up", "order_id": "O0180", "hub": "西岭", "service": "express", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0216-picked_up", "order_id": "O0216", "hub": "南湾", "service": "express", "kind": "picked_up", "happened_at": "2026-09-14T23:00:00Z"}
{"event_id": "O0180-delivered", "order_id": "O0180", "hub": "西岭", "service": "express", "kind": "delivered", "happened_at": "2026-09-15T03:30:00Z"}
{"event_id": "O0060-delivered", "order_id": "O0060", "hub": "海港", "service": "express", "kind": "delivered", "happened_at": "2026-09-15T05:50:00Z"}
{"event_id": "O0120-delivered", "order_id": "O0120", "hub": "东城", "service": "express", "kind": "delivered", "happened_at": "2026-09-15T06:10:00Z"}
{"event_id": "O0216-delivered", "order_id": "O0216", "hub": "南湾", "service": "express", "kind": "delivered", "happened_at": "2026-09-15T06:50:00Z"}
{"event_id": "O0040-delivered", "order_id": "O0040", "hub": "海港", "service": "standard", "kind": "delivered", "happened_at": "2026-09-15T19:30:00Z"}
{"event_id": "O0080-delivered", "order_id": "O0080", "hub": "东城", "service": "standard", "kind": "delivered", "happened_at": "2026-09-15T19:30:00Z"}
{"event_id": "O0156-delivered", "order_id": "O0156", "hub": "西岭", "service": "standard", "kind": "delivered", "happened_at": "2026-09-15T19:30:00Z"}
instructor/answers/rejected.csv 阅读完整文件下载文件
sourcelinereason
dispatch-a.jsonl321timezone_required
dispatch-a.jsonl322unsupported_event
courier-b.jsonl317epoch_must_be_integer
courier-b.jsonl318number
dispatch-a.jsonl319immutable_id_conflict
dispatch-a.jsonl320immutable_id_conflict
instructor/answers/duplicates.csv 阅读完整文件下载文件
sourcelineevent_idreason
dispatch-a.jsonl314O0002-createdexact_replay
dispatch-a.jsonl315O0002-picked_upexact_replay
dispatch-a.jsonl316O0002-deliveredexact_replay
dispatch-a.jsonl317O0004-createdexact_replay
dispatch-a.jsonl318O0004-picked_upexact_replay
courier-b.jsonl314O0001-createdexact_replay
courier-b.jsonl315O0001-cancelledexact_replay
courier-b.jsonl316O0003-createdexact_replay
完整参考实现 阅读完整文件下载文件
"""Reference implementation for the Ape Intern cold-chain operations lab."""
import csv,json
from collections import defaultdict,Counter
from datetime import datetime,timezone
from pathlib import Path
from urllib.parse import urlparse,parse_qs
UTC=timezone.utc
KINDS={'OPEN':'created','COLLECT':'picked_up','DROP':'delivered','VOID':'cancelled'}
HUBS={'海港','东城','西岭','南湾'}
def parse_time(value):
    t=datetime.fromisoformat(value.replace('Z','+00:00'))
    if t.tzinfo is None:raise ValueError('timezone_required')
    return t.astimezone(UTC)
def iso(t):return t.isoformat(timespec='seconds').replace('+00:00','Z')
def readcsv(p):
    with Path(p).open(encoding='utf-8-sig',newline='') as f:return list(csv.DictReader(f))
def writecsv(p,rows,fields=None):
    rows=list(rows)
    with Path(p).open('w',encoding='utf-8-sig',newline='') as f:
        w=csv.DictWriter(f,fieldnames=fields or list(rows[0]));w.writeheader();w.writerows(rows)
def dump(p,value):Path(p).write_text(json.dumps(value,ensure_ascii=False,indent=2)+'\n')
def _normalize(record,source):
    if source=='A':
        e=dict(event_id=record['event_id'],order_id=record['order_ref'],hub=record['hub'],service=record['service'],kind=record['event'],happened_at=iso(parse_time(record['event_time'])))
    else:
        ms=record['at_ms']
        if type(ms) is not int:raise ValueError('epoch_must_be_integer')
        e=dict(event_id=record['id'],order_id=record['shipment']['number'],hub=record['shipment']['station'],service=record['shipment']['product'],kind=KINDS[record['action']],happened_at=iso(datetime.fromtimestamp(ms/1000,UTC)))
    if e['kind'] not in KINDS.values():raise ValueError('unsupported_event')
    if e['hub'] not in HUBS or e['service'] not in {'standard','express'}:raise ValueError('unknown_dimension')
    if not e['event_id'] or not e['order_id']:raise ValueError('empty_key')
    return e

def normalize(record,source):
    try:return _normalize(record,source)
    except (KeyError,TypeError,OverflowError) as error:raise ValueError(str(error).strip("'")) from error

def ingest(data):
    grouped=defaultdict(list);rejected=[];duplicates=[]
    for source,name in [('A','dispatch-a.jsonl'),('B','courier-b.jsonl')]:
        for line,text in enumerate((data/name).read_text().splitlines(),1):
            loc={'source':name,'line':line}
            try:
                event=normalize(json.loads(text),source);grouped[event['event_id']].append((event,loc))
            except (ValueError,KeyError,TypeError,OverflowError) as ex:
                rejected.append(dict(loc,reason=str(ex).strip("'")))
    accepted=[]
    for eid,items in grouped.items():
        distinct={json.dumps(e,sort_keys=True,ensure_ascii=False) for e,loc in items}
        if len(distinct)>1:
            rejected.extend(dict(loc,reason='immutable_id_conflict') for e,loc in items);continue
        accepted.append(items[0][0])
        duplicates.extend(dict(loc,event_id=eid,reason='exact_replay') for e,loc in items[1:])
    accepted.sort(key=lambda e:(e['happened_at'],e['event_id']))
    return accepted,rejected,duplicates

def classify_order(order,events,cutoff):
    # Only facts available at cutoff can influence a retrospective result.
    visible=[e for e in events if parse_time(e['happened_at'])<=cutoff]
    visible.sort(key=lambda e:parse_time(e['happened_at']))
    delivered=[parse_time(e['happened_at']) for e in visible if e['kind']=='delivered']
    cancelled=any(e['kind']=='cancelled' for e in visible)
    due=parse_time(order['due_at'])
    if cancelled:state='cancelled'
    elif due>cutoff:state='not_mature'
    elif not delivered:state='overdue_open'
    elif min(delivered)>due:state='delivered_late'
    else:state='on_time'
    delay=round((min(delivered)-due).total_seconds()/60) if state=='delivered_late' else 0
    overdue=round((cutoff-due).total_seconds()/60) if state=='overdue_open' else 0
    return dict(order,cohort=state,late_minutes=delay,overdue_minutes=overdue)

def aggregate(rows,keys):
    groups=defaultdict(list)
    for row in rows:groups[tuple(row[k] for k in keys)].append(row)
    result=[]
    for dims,records in sorted(groups.items()):
        counts=Counter(r['cohort'] for r in records)
        eligible=sum(counts[x] for x in ['on_time','delivered_late','overdue_open'])
        late=counts['delivered_late']+counts['overdue_open']
        result.append(dict(zip(keys,dims),total=len(records),eligible=eligible,late=late,late_rate=round(late/eligible,6) if eligible else None,on_time=counts['on_time'],delivered_late=counts['delivered_late'],overdue_open=counts['overdue_open'],cancelled=counts['cancelled'],not_mature=counts['not_mature'],delivered_late_minutes=sum(r['late_minutes'] for r in records),open_overdue_minutes=sum(r['overdue_minutes'] for r in records)))
    return result

def service_band(rate,n,rules):
    if n<rules['min_sample']:return '待补样本'
    gap=(rate-rules['late_target'])*100
    if gap>rules['priority_gap_pp']:return '优先处理'
    if gap>rules['review_gap_pp']:return '需要复核'
    return '达到阈值'
def fairness(hub_tiers,rules):
    rows=[]
    for x in hub_tiers:
        rate=x['late_rate'];rows.append(dict(hub=x['hub'],service=x['service'],eligible=x['eligible'],late=x['late'],late_rate=rate,target=rules['late_target'],gap_pp=round((rate-rules['late_target'])*100,3) if rate is not None else None,review=service_band(rate,x['eligible'],rules)))
    standardized=[]
    for hub in sorted(HUBS):
        parts=[r for r in rows if r['hub']==hub]
        enough=len(parts)==2 and all(r['eligible']>=rules['min_sample'] for r in parts)
        value=sum(r['late_rate']*rules[r['service']+'_weight'] for r in parts) if enough else None
        standardized.append(dict(hub=hub,standardized_late_rate=round(value,6) if value is not None else None,status='可比较' if enough else '待补样本'))
    return rows,standardized

def investigate(logs,policy):
    logins={};findings=[]
    for row in sorted(logs,key=lambda r:(r['at'],r['request_id'])):
        t=parse_time(row['at']);status=int(row['status']);route=urlparse(row['path']);query=parse_qs(route.query)
        if route.path=='/login' and status==200:logins[(row['user'],row['session'])]=t;continue
        if status!=200:continue
        types=[]
        if route.path=='/export' and row['role'] not in policy['export_roles']:types.append('unauthorised_export')
        hub=query.get('hub',[''])[0]
        if row['role']=='operator' and hub and hub!=policy['operator_hub'].get(row['user']):types.append('hub_scope_violation')
        login=logins.get((row['user'],row['session']))
        if login is None or (t-login).total_seconds()>policy['session_ttl_minutes']*60:types.append('expired_or_missing_session')
        if types:findings.append(dict(request_id=row['request_id'],at=row['at'],user=row['user'],session=row['session'],finding=';'.join(types),status=status,rows=int(row['rows']),bytes=int(row['bytes'])))
    return findings

def solve(data,out):
    data=Path(data);out=Path(out);out.mkdir(parents=True,exist_ok=True)
    events,rejects,dups=ingest(data)
    (out/'canonical-events.jsonl').write_text(''.join(json.dumps(e,ensure_ascii=False)+'\n' for e in events))
    writecsv(out/'rejected.csv',rejects);writecsv(out/'duplicates.csv',dups)
    rules=json.loads((data/'rules.json').read_text());cutoff=parse_time(rules['cutoff'])
    by_order=defaultdict(list)
    for e in events:by_order[e['order_id']].append(e)
    orders=readcsv(data/'orders.csv')
    records=[classify_order(o,by_order[o['order_id']],cutoff) for o in orders]
    writecsv(out/'order-review.csv',records)
    hubs=aggregate(records,['hub']);tiers=aggregate(records,['hub','service']);routes=aggregate(records,['route'])
    writecsv(out/'hub-metrics.csv',hubs);writecsv(out/'route-metrics.csv',routes)
    bands,std=fairness(tiers,rules)
    writecsv(out/'service-review.csv',bands);writecsv(out/'standardized-comparison.csv',std)
    findings=investigate(readcsv(data/'access-log.csv'),json.loads((data/'access-policy.json').read_text()))
    writecsv(out/'security-findings.csv',findings)
    summary=dict(orders=len(orders),accepted_events=len(events),rejected=len(rejects),duplicates=len(dups),cohorts=dict(Counter(r['cohort'] for r in records)),hubs=hubs,service_review=bands,standardized=std,security=dict(flagged_requests=len(findings),potential_export_rows=sum(f['rows'] for f in findings if 'unauthorised_export' in f['finding']),potential_export_bytes=sum(f['bytes'] for f in findings if 'unauthorised_export' in f['finding']),findings=findings))
    dump(out/'results.json',summary)
    return summary
if __name__=='__main__':
    import sys
    print(json.dumps(solve(sys.argv[1],sys.argv[2]),ensure_ascii=False,indent=2))

重复不是错误;冲突不是普通重复。只靠输入两个 JSON 与预期相等不能证明管道可靠。

每项 20 分,14 分及以上且没有关键口径错误再进入下一次 Review。原始数据被改写、静默丢记录、分母含未到期、把 401 算成泄露、用小样本硬排站点或把前端筛选当授权,均须修正后再验收。

  • 字段和 UTC 映射正确 5 分
  • 重复与冲突处理正确 6 分
  • 隔离可追溯且数量对账 5 分
  • 独立测试与可重复运行 4 分