Hello,
I want to collect the HTTP requests per second every second.
To do so, I'm using Prometheus and Prometheus Adapter.
I set the value of 'scrape_interval', 'scrape_timeout', and
'evaluation_interval' to 1s in the Prometheus ConfigMaps resource of K8S as
follows:
[image: 스크린샷 2020-08-05 오전 12.20.46.png]
I use the following query to collect HTTP requests per second:
sum(irate(request_total{namespace!="", direction="inbound"}[30s])) by
(deployment)
However, the value of the query is updated almost every 20 seconds.
What I expect to this value is to be updated every second because I use
'irate' here and set 'scrape_interval' to 1 second.
My current environment is as follows:
- Service mesh: Linkerd v2.8.1
- K8S version: v1.17.9
- CNI: Calico
- Other components deployed together: Jaeger, Prometheus-adapter
Did I miss something?
Thank you in advance!
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