CODEWITHSUNDEEP
prometheusgrafanagrafana-variable
Sudhanshu Gupta
Sudhanshu Gupta

Reputation: 2315

Grafana variable - Interval mutiplier

I am drawing a graph in grafana where I am getting the rate of one counter and subtracting it from rate of another counter. I am using the Interval Variable in the graph. Now when I want to use 5m as interval, I want the rate to be multiplied (5*60). Similarly when 1h then it should be multiplied by (1 * 24 * 60 * 60)

$period = 1m,5m,10m,1h and like this.

My query

rate(service_total{state="otp_send"}[$period]) * 300 - ignoring(state) rate(service_total{state="otp_validate"}[$period]) *300

So I want this 300 to be put in a variable which changes when I change the $period value in grafana

> If $period is 5m, 300 should be 300 
> If $period is 1m, 300 should be 60
> If $period is 10m, 300 should be 600

And in this way. Is there something that I can do in grafana.

SO basically I want to attach the $period to a constant variable that multiplies according to the interval.

Upvotes: 0

Views: 1407

Answers (2)

Marcelo Ávila de Oliveira
Marcelo Ávila de Oliveira

Reputation: 22511

You can change from "rate(vector)*time" to "delta(vector)" to get the same result, like the following:

delta(service_total{state="otp_send"}[$period]) - ignoring(state) delta(service_total{state="otp_validate"}[$period])

More info in the Prometheus documentation here.

UPDATE:

As @brian-brazil replied, the correct in this case is to use the "increase" function instead of the "delta" function because the second one doesn't deal with counter resets.

More info in the Prometheus documentation here

Upvotes: 1

brian-brazil
brian-brazil

Reputation: 34172

  increase(service_total{state="otp_send"}[$period]) 
- ignoring(state) 
  increase(service_total{state="otp_validate"}[$period])

increase is syntactic sugar on top of rate that does this.

Upvotes: 2

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