Checkmk Grafana Integration

[ambre]

Hi,

I have a metric called “Status” which only gets 0 and 2. 0 → OK, 2 → not OK.
I created panel in Grafana and when I check the data arriving from Checkmk
I see values like 0.28, 1.43, 1,78, 0,69. Is it possbile to only gete 0 or 2 because
this are the only values the plugin is crating.

I assume this is the case because Checkmk is interpolating between datapoints.

–
Erwin

[ambre]

Hi,

so far I discovered, that Checkmk puts float values into the RRD database.
Although my plugin is providing 0 and 2 only.

–
Erwin

[Jay2k1]

Yeah, I don’t exactly know, but I could imagine it’s not Grafana’s fault. I have a graph of integer values (user count) and it too has interpolation between reads it seems:

Grafana gets the same number:

This makes it clear that Grafana is not to blame, it has probably to do with the way RRD stores data.

[andreas-doehler (Andreas)]

@Jay2k1

it has probably to do with the way RRD stores data.

Exactly - this here RRDtool - Rates, normalizing and consolidating
is a nice article how data is processed inside RRDTool.
Also the other articles on this side are good to understand the internal things RRDTool does.

[ambre]

Hi,

thanks for your answers. This is what I assumed.
RRD is developed for timeseries data not status visualitation as specific timestamps like 0 OK and 2 NOK.

–
Erwin