Hello. I can only see the data of 1 month ago on dashboard. It seems like it was deleted. Is this a limitation or something like that? For ex: i’ve been collecting data since 10 January, but now i can only see from 26 January. I was able to see from 10 January.
This sounds very much to me like you are using a back-end data store with a
retention policy (for example InfluxDB) and that retention policy has been set
(perhaps by default) to one month.
This is not a Grafana question / problem - you need to find out how to adjust
the retention policy for whichever back-end data store you are using.
Hope that helps,
Thank you very much.