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Sentinel学习笔记:sentinel-cluster | LearningGp #27

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@LearningGp

https://arvinhe.club/2021/07/10/Sentinel%E5%AD%A6%E4%B9%A0%E7%AC%94%E8%AE%B0-sentinel-cluster/#more

简介
由于流量存在不均匀的情况,单机限流无法实现准确的集群限流,往往在总流量没有到达集群阈值的情况下,集群中的某些机器就开始限流。例如一个集群限流阈值为200qps,由两个节点组成,那么每个节点限流配置100qps,在这种配置下即便集群流量未到达200qps,单个节点也有可能到达100qps而开始限流。而集群限流就是为这种场景服务的,目的就是实现精确地控制整个集群的 QPS。
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