maxSeries returns lower max after zooming out

Grafana Stat Panel
1

I have a single stat panel with the following metric:

maxSeries(cmk.$array.$snapvault.Lag)

$array is one NetApp array and $snapvault in this case is several nodes, each returning a value in minutes. I also have a graph panel on the same dashboard with the following metric:

aliasByNode(cmk.$array.$snapvault.Lag, 2)

So this results in line graph for each $snapvault, graphing the minutes value.

When I’m zoomed in, I see a line that goes up to 35 minutes on the graph panel. The single stat panel also shows 35 as the max of the series. This is correct. However, if I zoom out, I still see the line go up to the 35, but my single stat panel shows a lower max now. Why would that be?? I will attach screenshots if I can figure out how.

Correct:

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Selection_2691357×622 100 KB

Incorrect:

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2

Hi,

If you try and change Max data points under options to 1 for the max singlestat panels, does that solve your problem?

Marcus

3

I don’t seem to have a “max data points” option.

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Selection_0361257×581 41.6 KB

4

Sorry should have said that it’s under the Metrics tab. To the right of datasource you’ll find an option button.

Marcus

5

Ah, ok, found it. That didn’t help. It made it worse. My max time in the singlestat went down to 11 minutes when the graph clearly shows maximums over that.

6

Okay revert that. Didn’t think of that you have spark lines as well.

Please use the query inspector and include request/response information for both singlestat and graph panel when it’s working as expected and when you’re zooming out.

Marcus