stefanluptak
Hi all,
I am trying to setup PrometheusPhoenix with Phoenix 1.5.
The library says in the documentation, to use instrumenters: [ ... ] in the Endpoint config in config.exs file, but after doing that Phoenix is complaining :instrumenters configuration for MyApp.Endpoint is deprecated and has no effect.
I assume I should somehow attach the handler to the Telemetry, but I don’t know how. Any idea how to solve this will be appreciated.
Thanks a lot.
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hauleth
There is TelemetryMetricsPrometheus library, unfortunately it is completely separate from
prometheuslibrary, which mean that these two do not get along very well.stefanluptak
Thanks for the link. So for example, what should I do if I want to track how many websocket messages my endpoint receives? Is the channel emitting some telemetry events by default? Or should I add those manually? Sorry, I am lost a bit in this whole topic.
hauleth
It seems, that right now, there are some events but these aren’t documented (at least I cannot find them, and
Plug.Telemetrywill not be fired for sockets). There is some work on integrating Telemetry directly with Cowboy, which should solve your problems on higher level.