Your example is basically right, here is a complete working example:
var data = stream
|from()
.measurement('m')
.groupBy('a', 'b', 'c')
|window()
.period(10s)
.every(10s)
|top(3, 'field')
|sum('top')
|alert()
.crit(lambda: "sum" == 0)
You need to window the data to define over how much time you want to find
the top values. Adjust the period and every durations to your needs.
On Tuesday, August 9, 2016 at 3:00:41 AM UTC-6, [email protected]
wrote:
>
> i want to find the sum of top 3 values from the stream of data, how can it
> be done?
>
> i am looking something like,
>
> var data = stream
> |from()
> .measurement('measurement1')
> .groupBy('a','b','c')
> |top(3,"field")
> |sum("field")
>
> and i would like to rais ean alert if (data==0)
>
>
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