V2EX rate limit

Rate Limit

定义 Definition

rate limit速率限制 / 频率限制;指在一定时间窗口内,对请求次数、发送量或访问速率设定上限,以防止滥用、过载并保障系统稳定。(也可作动词用:to rate-limit,意为“对……进行限速/限频”。)

发音 Pronunciation (IPA)

/ret lmt/

例句 Examples

The API has a rate limit of 100 requests per minute.
这个 API 的速率限制是每分钟 100 次请求。

To prevent abuse, the service rate limits users based on IP address and gradually increases the limit for trusted clients.
为防止滥用,该服务会根据 IP 地址对用户进行限频,并对可信客户端逐步提高限额。

词源 Etymology

rate(速率、比率)源自拉丁语 rata(“计算、确定的”)经由法语进入英语;limit(限制、界限)源自拉丁语 *limes/limit-*(“边界、界线”)。合在一起的 rate limit 属于现代技术语汇,尤其常见于网络服务与 API 设计中,用来表达“对单位时间内的行为设上限”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Designing Data-Intensive Applications(Martin Kleppmann)在讨论分布式系统与可靠性、容量规划相关话题时常涉及限流/配额等概念。
  • Site Reliability Engineering(Betsy Beyer 等,Google)在可用性与保护系统(如限流、降级、负载保护)章节中会使用或讨论 rate limiting。
  • REST API Design Rulebook(Mark Masse)在 API 设计实践中会提到对客户端请求进行速率限制以维护服务质量。
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