You need to remove both cpu and mode for the labels to match:
node_load1 / count without (cpu,mode) (node_cpu_seconds_total{mode="idle"})
On Sun, Jun 14, 2020 at 1:16 AM Ray Wu <[email protected]> wrote:
> While reading other document, I found that both time series need to have
> matching labels.
> I have an extra label "region" for all metrics.
>
> Aggregate on denominator "mode" doesn't make it work
>
> node_load5{instance="host"} /
> sum without (mode)
> (count(node_cpu_seconds_total{instance="host",mode="idle"}))
>
> The following query works thought
>
> sum without (instance, job, region) (node_load1{instance="host"}) /
> sum without (mode)
> (count(node_cpu_seconds_total{instance="host",mode="idle"}))
>
> but I really don't understand why
>
>
> On Saturday, June 13, 2020 at 2:09:31 PM UTC-7, Ray Wu wrote:
>>
>> I want to divide node_loadN by number of CPUs.
>>
>> Both queries
>>
>> node_load1{instance="hostname"}
>>
>> and
>>
>> count(node_cpu_seconds_total{instance="hostname",mode="idle"})
>>
>> Returns expected results. But for query
>>
>> node_load1{instance="hostname"} /
>> count(node_cpu_seconds_total{instance="hostname",mode="idle"})
>>
>> ,the returned result is empty. What did I do wrong?
>>
>> --
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