V2EX preemptible

Preemptible

定义 Definition

preemptible(形容词)可被抢占的;可被提前中断/替换的。常用于计算机与云计算语境,指某个任务、资源或实例可能被系统优先级更高的需求强制终止或回收(如“可抢占虚拟机”)。

发音 Pronunciation (IPA)

/primptbl/

例句 Examples

A preemptible server can be stopped at any time.
可抢占的服务器可能在任何时候被停止。

Because the workload is fault-tolerant, we run it on preemptible instances to reduce costs, even though they may be reclaimed with little notice.
因为这个工作负载具备容错能力,我们把它运行在可抢占实例上以降低成本,尽管这些实例可能在几乎没有提前通知的情况下被回收。

词源 Etymology

preemptible 来自 preempt(“先发制人;抢先占用;在计算机中指抢占/中断”)+ 形容词后缀 -ible(“可……的”)。其中 pre- 表示“在前”,empt 与“拿走/占用”相关;整体含义就是“能够被抢占(提前占用或中断)的”。

相关词 Related Words

文学与著作 Literary & Works

  • Google Cloud Compute Engine documentation(Google 计算引擎文档):以 preemptible VM(可抢占虚拟机)作为核心术语讨论成本与中断机制。
  • Kubernetes documentation(Kubernetes 官方文档):在调度、驱逐(eviction)与资源回收语境中涉及“可被抢占/可中断”的相关表述与用法。
  • Site Reliability Engineering(《站点可靠性工程》):讨论系统在资源紧张时的优先级、抢占与容错设计,常出现与 preemptible 同源的术语体系(如 preempt/preemption)。
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