How to limit prometheus data aggreagation with specific time range?

Question

I have a metric with TPS in a business scenario. I want to get a percentile for a certain period of time. If I use a zabbix data source, I get this(which I really need):

grafana+zabbix+percentile.png

If I use the prometheus data source, I get this:

grafana+prometheus+percentile.png

query: quantile_over_time(0.75, sum(metric_group{ metric="metric_name"})[3d:])

I want to get several points on the chart with an interval of 3 days, as it was done in the first chart. But in the case of using Prometheus, I get many points with an interval of 5 minutes, instead of 3 days. How to fix this and limit this data?

valyala · Accepted Answer · 2020-12-15 16:08:37Z

1

Try setting min step value to 3d in graph settings in Grafana. See more details about min step setting in Grafana at https://grafana.com/docs/grafana/latest/datasources/prometheus/ .

answered Dec 15, 2020 at 16:08

valyala

1

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