V2EX rate-limiting

Rate-limiting

定义 Definition

rate-limiting 指“速率限制 / 限流”:在一定时间窗口内限制请求、操作或数据发送的频率,以防止系统过载、滥用(如刷接口)、或保证公平与稳定性。(常见于 API、网络服务、分布式系统、安全防护等场景)

发音 Pronunciation

/ret lmt/

例句 Examples

The API uses rate-limiting to prevent abuse.
该 API 使用限流来防止滥用。

To protect the service during peak traffic, the gateway applied rate-limiting per user and returned a 429 error when the threshold was exceeded.
为在流量高峰期保护服务,网关对每个用户实施限流,并在超过阈值时返回 429 错误。

词源 Etymology

rate(速率、频率) + limiting(限制) 组合而成的复合形容词/动名词用法。随着互联网服务与 API 的普及,“rate-limiting”在工程语境中固定化,专指对请求速率设上限的机制(如令牌桶、漏桶等策略)。

相关词 Related Words

文学与作品 Literary Works

  • Designing Data-Intensive Applications(Martin Kleppmann)中讨论服务保护与流量控制时常提及 rate limiting 的思路与相关机制。
  • Site Reliability Engineering(Beyer, Jones, Petoff, Murphy 编)在可靠性与防止级联故障的章节里常出现 rate limiting / throttling 的实践语境。
  • RESTful Web APIs(Leonard Richardson 等)在 API 设计与客户端行为控制相关内容中会提到 rate limiting(常与配额、429 状态码并用)。
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