V2EX rate limiting

Rate Limiting

定义 Definition

Rate limiting(速率限制)是一种控制某项操作在一定时间内被执行次数的技术或策略。常用于网络服务、API 接口等场景,防止资源被过度使用或滥用。

发音 Pronunciation

/ret lmt/

例句 Examples

The server uses rate limiting to prevent too many requests from a single user.
服务器使用速率限制来防止单个用户发送过多请求。

To ensure fair access for all developers, the API enforces strict rate limiting policies that throttle excessive calls and return a 429 status code when the threshold is exceeded.
为了确保所有开发者的公平访问,该 API 执行严格的速率限制策略,对过多的调用进行节流,并在超出阈值时返回 429 状态码。

词源 Etymology

Rate 源自拉丁语 rata(固定的量),经由古法语传入英语,意为"比率、速率"。Limiting 来自拉丁语 limes(界限、边界),后演变为 limitare(限制)。两个词组合在一起,字面意思就是"对速率加以限制"。这一术语随着互联网和计算机网络的发展而被广泛使用,最初用于描述网络流量控制,后来扩展到 API 管理、登录保护等多种场景。

文学与技术文献引用 Notable References

  • 在 Martin Kleppmann 的 Designing Data-Intensive Applications 中,rate limiting 被作为保护分布式系统稳定性的重要策略加以讨论。
  • Site Reliability Engineering: How Google Runs Production Systems(Google SRE 手册)中,rate limiting 被视为保障服务可用性的核心手段之一。
  • Release It! by Michael T. Nygard 中,rate limiting 作为"稳定性模式"之一被详细介绍,用于防止级联故障。
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