Diferent data each time the graphs are reloaded


I’m having some issues with Grafana / Prometheus.
The graphs have inconsistente data. The first 2 or 3 times i refresh it, it shows different values on the same graph for the same timeframe.

Any idea what is causing this?

Could you provide some more details please. What does your query look like/how is the data incorrect etc.

Its a simple: mysql_slave_status_seconds_behind_master
I use prometheus and their mysqld_exporter

When i enter the dash first time

After refresh

Looks similar to this issue:

You could have a look at the Percona dashboard for mysql replication to see how they handle the step parameter: