Each node contains an engine throttling component which monitors the node health, log sizes, log write duration, CPU usage, and database size limits.

每个节点都包含有引擎流量调节组件，它会监控节点的健康状况、日志大小、日志写入时间、CPU使用量以及数据库大小限制。

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EndpointStub represents the downstream component of our workload throttling scenario.

EndpointStub给出了工作负载调节场景的下游组件。

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