I think this is very complicated due The first query A returns 10 rows with label: metric_name A B C ... and the other query B, for example returns the sum of values of query A without labels so how will these match each other?
El lun, 25 ene 2021 a las 20:23, Stuart Clark (<[email protected]>) escribió: > On 25/01/2021 23:08, [email protected] wrote: > > Hell Guys > I have a doubts about using arithmetic operations in Prometheus > Currently I have a metric *A* that return more than a single row with > values, so when I try to divide these values of *A* by using the single > result of another metric *B* I get as result only one row instead of many > row as the first metric *A*, but when I put the value in hard code, I get > the result I want it i.e. many row as the first metric *A* > *Why is this happening?* > *Thanks for your help in advance * > > With many operations Prometheus will match the metrics using their labels. > For your example of A & B, take a look at what combinations of labels exist > - both could be single values or multiple values, both could have identical > sets of labels or different ones. These will all alter the outcome. > > For division by a fixed number there is no problem with label matching, so > for example A / 5 will return exactly as you'd expect, being each of the > values of A (which could be multiple combinations of labels) divided by 5. > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/CAKDAv_QJ6iv2egGUgd8gsYyV9YsN4HJEKLm4hBDtiUVo8pywiA%40mail.gmail.com.
