What does HackerNews think of grafana?
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
You can see all the job openings at https://boards.greenhouse.io/grafanalabs and read more about Grafana Labs here: https://grafana.com/about/careers/#jobs
I work on the Alerting team and we are looking for a backend engineer (remote EST, https://boards.greenhouse.io/grafanalabs/jobs/4857517004) to work on Grafana Alerting which is based on the Prometheus Alertmanager. The code you would be working on is mostly part of https://github.com/grafana/grafana and, if you want to learn more about the context we are in, I recommend you to watch this presentation from our tech lead: https://youtu.be/9AX8u-bt4J8
Maybe my definition of open-core is different than yours.
That's what Grafana [0][1] is for -- i.e. creating nicer displays for Graphite.
However it's single host, doesn't scale
It may take some effort, but it can be done, and much of the heavy-lifting seems to have been done and been made available as open-source.
Here's a blog post from Jan. 2017 [2] from a gambling site about scaling Graphite.
And here's a talk [3] from Vladimir Smirnov at Booking.com from Feb. 2017 about scaling Graphite -- their solution is open-source (links in the talk and slides available at the link):
This is our story of the challenges we’ve faced at Booking.com and how we made our Graphite system handle millions of metrics per second.
(And this [4] is an older, but more comprehensive, look at various approaches to scaling Graphite from the Wikimedia people with the pros and cons listed).
[1] https://github.com/grafana/grafana
[2] http://engineering.skybettingandgaming.com/2017/01/13/graphi...
[3] https://fosdem.org/2017/schedule/event/graphite_at_scale/