@Vibhu Pandey Thanks a lot for adding support for external databases like Postgres 🙏, that’s really helpful! I just had one doubt though — even with Postgres support, if I scale out the query-service into multiple instances, won’t each instance still load the alert rules, evaluate them, and send notifications? How would this setup avoid duplicate alerts in that case?

You're talking about HA support which we don't have.

Not exactly about HA support—I just want to know: if I run multiple instances, will my alert evaluation result in multiple notifications being triggered for the same alert? Does alert evaluation happens on each instance or its configurable..?

Yes it happens on each instance. So if you run 2 instances, it will fire twice.

Is there any development plan to solve this issue for open source..??

Not right now!