令人困惑的 Storm-UI [英] Confusing Storm-UI

问题描述

我对 Storm-UI 统计数据感到困惑.

I am confused by the Storm-UI statistics.

例如:

拓扑统计显示数量为 6900 万

Topology Stats show a number of 69 million

kafka-spout 显示数量为 3400 万

kafka-spout shows a number of 34 million

__acker 为 1700 万

es-bolt 也显示 1700 万

es-bolt shows 17 million too

我的拓扑是 kafka-spout --> es-bolt，我不确定上面的数字是如何加起来的?

My toplogy is kafka-spout --> es-bolt and I am not sure how the numbers above add up?

如果 Kafka-spout 只发出 3400 万，为什么拓扑统计数据显示 6900 万?

If Kafka-spout is emitting only 34 million, why do topology stats show 69 million?

再说一次，如果 Kafka-spout 发出了 3400 万，为什么 es-bolt 说是 1700 万?

And again if Kafka-spout emitted 34 million, why does es-bolt say 17 million?

我看到元组从上到下减半的模式，但不确定我明白为什么?是因为 ack-tuples 还是心跳螺栓?

I see a pattern of tuples being halved from top-to-down, but not sure I understand why? Is it because of ack-tuples or heart-beat bolts?

它们总是上游喷口的一半吗?

Are they always half of the upstream spout?

推荐答案

您可以关闭系统统计信息，然后数字就有意义了.Storm UI 统计信息页面底部有一个按钮.

You can turn off system stats, then numbers will make sense. There's button on the bottom of Storm UI stats page.

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