System up time

[ritesh patel]

Hi All, 

I have prometheus running on docker, added around 1000+ hosts as a target. prometheus scraping metrics using telegraf. 

I have one metrics which name System up time. But metrics value is not showing as day and hours. I want total days and hours of syatem up and running. Exp- xx.xx.xx.xx hosts up since 23days 

Can someone help me to create promQL for that metrics to show value like days and hours system running 

Thanks and regards 

Ritesh patel 

[Brian Candler]

Metrics are always float64 values. How you present them to the user is up to the client appplication: e.g. if you were using Grafana, you'd tell Grafana to display the value in a human-readable time duration format.

You can do simple arithmetic in PromQL queries.  For example, if "sysUpTime" is a metric with units of 1/100ths of a second, then the following will convert it to days:

sysUpTime / 8640000

Here 3.5 would mean "3 days 12 hours".  Again, displaying it in such a format is down to the client making the query, because the query will just give you a number (or more precisely, a vector of numbers, since there may be multiple timeseries for the sysUpTime metric)