[hauleth]

> hint that it was being worked on next and will be implemented into Phoenix as a web dashboard in the future but there was no hint of that mentioned this year

Currently there is EEF Observability WG that is working on integrating OpenTelemetry, so it will not be integrated into Phoenix, but will be more general and more cross-language solution for monitoring.

Source: I am part of that WG.

[nickjj]

Previously it was talked about that Elixir would create a telemetry library and then Phoenix (and other libraries like Ecto, etc.) would use it.

And the end goal was to have a Phoenix web UI that would come out of the box that you could goto and see a bunch of really useful things about your server's health, the BEAM but more importantly app specific things like DB query times and all of those interesting stats you would want to see. The beauty of it was you would get all of this for free / nearly free in terms of the work you had to do as an app developer.

Did all of that get scratched for OpenTelemetry? Do you happen to know of a timeline when end users could expect to see the benefits of this new standard in Elixir apps?

The official website at https://opentelemetry.io/ doesn't show Elixir as being a supported language.

[hauleth]

> Elixir would create a telemetry

Erlang `telemetry` is something different from OpenTelemetry.

> Phoenix (and other libraries like Ecto, etc.) would use it

And this is a fact. Both Plug, Phoenix, and Ecto are using Erlang's Telemetry library.

> And the end goal was to have a Phoenix web UI that would come out of the box that you could goto and see a bunch of really useful things about your server's health

This will probably be implemented as an external library in form of OpenTelemetry as I said.

> Did all of that get scratched for OpenTelemetry?

No, OpenTelemetry and Erlang's Telemetry have different goals. Erlang's Telemetry is meant to be lightweight metrics logging library with API for defining exposed metrics. OpenTelemetry is the OTP application that will ingest these metrics and will expose them to the external services like DataDog or Prometheus.

> The official website at https://opentelemetry.io/ doesn't show Elixir as being a supported language.

[Not all languages are listed on the website](https://github.com/open-telemetry/opentelemetry-erlang).