The overall setup process was great. I can simply use the latest Grafana docker image, and use the environment variable to install the extra plugin (timeplus-proton-datasource) and load pre-defined data source and dashboards as yaml. Grafana was one of the few dashboard systems that support live charts over WebSocket (
https://grafana.com/docs/grafana/latest/setup-grafana/set-up...) But that mainly work for append-only data. Say every x seconds, there is a new counter. When I need to show the top 5 most active HackerNews users, if I want to auto-refresh this every X seconds, it's not easy to do with Grafana Live. I endedup with using special `limit 5 by emit_version()`, then use a Grafana transformation to order by emit_versio() desc and pick up the top 5 (check the code if you're curious
https://github.com/bytewax/hacking-hacker-news/blob/main/gra...)
Kind of a hacky workaround.
This could be a good reason to explain why in Timeplus Cloud we built our own charting component, to support various render modes.