Remove host from Grafana

nfn

Hi

I'm using Grafana + Prometheus + Node Exporter with Node Exporter Full Dashboard and would like to remove an old host from Grafana Dashboard.

Whenever I delete a series, the data is removed from Prometheus but in the Grafana Dashboard, the host remains there.

These are the commands I use:

curl -s -X POST -g 'http://localhost:9090/api/v1/admin/tsdb/delete_series?match[]={instance="my.instance.tld:9100",job="job_name"}'
curl -s -X POST -g 'http://localhost:9090/api/v1/admin/tsdb/clean_tombstones'

How can I remove the host from Grafana Dashboard?

Thanks

nfn

if someone is interested, it looks like the only way to do this is to wait up to the retention period (15 days by default)
After removing the instance, I forced two hours and the host was purged from Prometheus.

If you need to configure retention to a value other than 15d, you'll need to set --storage.tsdb.retention.time in the system's service on ExecStart

https://prometheus.io/docs/prometheus/latest/storage/#compaction