testing - 什么是挤压测试？

Question

在 29:10 左右的演讲“Beyond DevOps: How Netflix Bridges the Gap”中，Josh Evans 提到挤压测试可以帮助他们了解系统漂移。什么是挤压测试及其实现方式？

Answer 1

这似乎是 Netflix 人员使用的术语。

它是运行一些测试/基准测试来查看性能变化并计算应用程序的断点。然后查看最后一次更改是否效率低下或在部署之前确定推荐的自动缩放参数。

还有一点信息here和 here :

One practice which isn’t yet widely adopted but is used consistently by our edge teams (who push most frequently) is automated squeeze testing. Once the canary has passed the functional and ACA analysis phases the production traffic is differentially steered at an increased rate against the canary, increasing in well-defined steps. As the request rate goes up key metrics are evaluated to determine effective carrying capacity; automatically determining if that capacity has decreased as part of the push.