apache-kafka - Kafka 配额是如何工作的？

Question

我的问题是:如果我将配额设置为 1 MB/秒，多代理集群会得到多少？ (例如，取 2 个经纪人)每个代理的速度是 1MB/秒(还是)每个代理 0.5MB/秒？

文档说:

For example, if (user="test-user", client-id="test-client") has a produce quota of 10MB/sec, this is shared across all producer instances of user "test-user" with the client-id "test-client.

Answer 1

是的，配额按经纪人计算。因此，在您的示例中，您将在每个代理上获得 1MB/秒的速度。

Quotas Enforcement Kafka 文档中的部分说:

By default, each unique client group receives a fixed quota as configured by the cluster. This quota is defined on a per-broker basis. Each client can utilize this quota per broker before it gets throttled. We decided that defining these quotas per broker is much better than having a fixed cluster wide bandwidth per client because that would require a mechanism to share client quota usage among all the brokers. This can be harder to get right than the quota implementation itself!