google-app-engine - 谷歌应用引擎 : bucket_size parameter on Task Queues

Question

关于 Bucket_size 参数的 Google 文档只给出了一个 brief definition , 维基百科 link和一个例子:

bucket_size

Limits the burstiness of the queue's processing,
i.e. a higher bucket size allows bigger spikes in the queue's execution rate. For example, consider a queue with a rate of 5/s and a bucket size of 10. If that queue has been inactive for some time (allowing its "token bucket" to fill up), and 20 tasks are suddenly enqueued, it will be allowed to execute 10 tasks immediately. But in the following second, only 5 more tasks will be able to be executed because the token bucket has been depleted and is refilling at the specified rate of 5/s.

能否请您解释一下 Bucket_size 参数以及该参数在哪些方面有用？

Answer 1

最简单的描述方式是它定义了您允许队列服务的需求高峰。

例如，如果您为 5/s 请求定义一个队列，桶数为 10。这意味着它将主要以每秒 5 个请求的速度执行，但当它达到峰值时，它将达到每秒 10 个请求.