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examination/topics/architecture/seckill-design/meta.json
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{
"slug": "seckill-design",
"name": "高并发秒杀系统设计",
"description": "高并发秒杀系统:分层削峰、限流(429)、Redis Lua 原子扣减、不超卖、一人限购、异步落库、Redis Key 设计",
"tags": [
"429",
"Duplicate",
"EXPIRE",
"Go",
"INCR",
"Lua",
"Redis",
"Redis Cluster",
"Redis Key",
"Redis原子性",
"Retry-After",
"SQL",
"ZSET",
"hash tag",
"一人一件",
"乐观锁",
"令牌桶",
"兜底",
"冒号",
"削峰",
"单线程",
"原子",
"命名规范",
"唯一约束",
"固定窗口",
"异步",
"批量",
"数据库兜底",
"消息队列",
"滑动窗口",
"版本号",
"落库",
"超卖",
"跨节点",
"限流",
"限购"
],
"difficulty_range": [
2,
5
],
"schema_version": "1.0.0",
"updated": "2026-09-04",
"question_files": [
"single_choice",
"fill_blank",
"short_answer",
"code_reading"
],
"stats": {
"total": 40,
"by_type": {
"single_choice": 10,
"fill_blank": 10,
"short_answer": 10,
"code_reading": 10
}
}
}