Hello Brian,
thanks a lot. I've found a new dashboard, also for Telegraf with the same
overall state :-)
cu denny
Brian Brazil schrieb am Montag, 24. August 2020 um 00:16:55 UTC+2:
> >in that case, its a gauge ...
>
> That's a counter, node_network_receive_bytes_total is the equivalent in
> the node exporter. I take it the expression is meant to be calculating
> instantaneous bits received per second?
>
> In PromQL that would be
> irate(net_bytes_recv{host=~"$server",interface=~"(vlan|eth|bond|ens).*"}[1m])*8
>
> I think the quantile is a noop, and if it wasn't it'd have been preventing
> you from having any useful metrics as rate always needs to be first and you
> can't do math on quantiles. Deriv is also not safe to use with counters,
> it's only for gauges.
> PromQL would have given you an error for this form of query, as it doesn't
> make sense.
>
> > and its also used for many other graphs too, like disk :-)
>
> You might want to look for a different dashboard to work from, that
> expression is not calculating bits received per second or anything else
> meaningful.
>
> Brian
>
> On Sun, 23 Aug 2020 at 22:31, Denny Fuchs <[email protected]> wrote:
>
>> Hi,
>>
>> in that case, its a gauge ...
>>
>>
>> https://github.com/influxdata/telegraf/blob/master/plugins/inputs/net/NET_README.md
>>
>> and its also used for many other graphs too, like disk :-)
>>
>> cu denny
>>
>> [email protected] schrieb am Freitag, 21. August 2020 um 15:35:58 UTC+2:
>>
>>> That's a very weird query to be sure.
>>>
>>> I guess it depends a lot on what net_bytes_recv is. Is the underlying
>>> data a gauge of bytes per second? Or is it a counter?
>>>
>>> On Fri, Aug 21, 2020 at 3:13 PM Denny Fuchs <[email protected]> wrote:
>>>
>>>> Hello,
>>>>
>>>> I'm new to Prometheus and trying out Thanos. I'm coming from the
>>>> InfluxDB / Telegraf world and I found a Template for Grafana, which is a
>>>> fork, we use for InfluxDB. It is for Victoriametrics and uses in the
>>>> Grafana template some functions, PromQL does not have.
>>>>
>>>> One of them is: abs(ideriv)): On the side from VictoriaMetrics
>>>> <https://victoriametrics.github.io/MetricsQL.html>() it means:
>>>> "ideriv(m) - for calculating instant derivative for m."
>>>>
>>>> I have something like:
>>>>
>>>> abs(ideriv(quantile(0.5,net_bytes_recv{host =~ "$server",interface =~
>>>> "(vlan|eth|bond|ens).*"}) by (host,interface)))*8
>>>>
>>>> Is there a way to get the same, so that I can search/replace this
>>>> function ?
>>>>
>>>> cu denny
>>>>
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>
> --
> Brian Brazil
> www.robustperception.io
>
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