What version of PMM? 2.31.0 and newer uses the new grafana alerting engine so it’s done a different way (I don’t think it can be set in a Percona template but once the rule is created from a template you edit the rule and set the scan Inter an and evaluation duration I.e. every X seconds for Y seconds where X will be your interval for that alert)
Correct. The feature was still in tech preview so changes happen often as we iterate on functionality. In this case grafana released a feature that was a better way of delivering the overall value so we went with that. As far as I know grafana is still using alertmanager under the hood but I haven’t dug in deep enough to know how to manipulate it.