Wow I didn't send my answer sorry about it.
Yeah you're right keeping old data is always a good way.
I'm new to Grafana so I get questions about it. Anyway thank you for your answer 👍

BTW updating the values in grafana is basically configuration of the heatmap graph, so it is fairly easy to do, just not.automatic

Hmm so yes that is true, if you are changing the bucket values you will have to manually also adjust it in grafana. I wonder if there is a shortcut here, the data is stored in Prometheus, and I would rather try to avoid deleting old data, Wdyt?

Hi @<1523701205467926528:profile|AgitatedDove14> , I understand what you mean.
In the case when I want to change my bucket values, it will not update them on Grafana and I will have to add a new endpoint. Is there a way to update the bucket values in Grafana, or deleting the variable/metric in Grafana ?

hi @<1546303293918023680:profile|MiniatureRobin9>

I can still see the metrics in Grafana. I

it will not delete it from grafana, it means it's no longer collected, make sense ?