Counter with tags doesn't report 0 value

[eagleonhill]

I have created a counter that with tags. However, the signalfx dashboard doesn't show the first value.

I would like the signalfx dashboard to show events happened during the window.
Upon first increment, it reports the value 1. If I use delta rollup, this only produce value 0. And all the subsequent values are less by 1, i.e if there are N events, I can only see N-1 from the dashboard, for the period that the event initial appear.

This would be more problementic for rare cases, like 1-2 event per 30min for failures.

Is anything I need to do to get the correct value?

[rsanchuk]

In case you still need an answer for this one...
To get the correct value, you may need to adjust the rollup method used in the SignalFx dashboard. Instead of using delta rollup, you could try using a different method, such as sum or average, which will include the first value in the total count. This should enable you to see all events that occurred during the specified time window, including the first event.