defmodule Pleroma.Web.Telemetry do use Supervisor import Telemetry.Metrics def start_link(arg) do Supervisor.start_link(__MODULE__, arg, name: __MODULE__) end @impl true def init(_arg) do children = [ # Telemetry poller will execute the given period measurements # every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics {:telemetry_poller, measurements: periodic_measurements(), period: 10_000}, # Add reporters as children of your supervision tree. # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}, {TelemetryMetricsPrometheus, metrics: metrics()} ] Supervisor.init(children, strategy: :one_for_one) end def metrics do [ # Phoenix Metrics summary("phoenix.endpoint.stop.duration", unit: {:native, :millisecond} ), summary("phoenix.router_dispatch.stop.duration", tags: [:route], unit: {:native, :millisecond} ), distribution( "phoenix.router_dispatch.stop.duration", # event_name: [:pleroma, :repo, :query, :total_time], measurement: :duration, unit: {:native, :second}, tags: [:route], reporter_options: [ buckets: [0.1, 0.2, 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250, 500, 1000] ] ), # Database Time Metrics distribution( "pleroma.repo.query.total_time", # event_name: [:pleroma, :repo, :query, :total_time], measurement: :total_time, unit: {:native, :millisecond}, reporter_options: [ buckets: [0.1, 0.2, 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250, 500, 1000] ] ), distribution( "pleroma.repo.query.queue_time", # event_name: [:pleroma, :repo, :query, :total_time], measurement: :queue_time, unit: {:native, :millisecond}, reporter_options: [ buckets: [0.01, 0.025, 0.05, 0.1, 0.2, 0.5, 1, 2.5, 5, 10] ] ), summary("pleroma.repo.query.total_time", unit: {:native, :millisecond}), summary("pleroma.repo.query.decode_time", unit: {:native, :millisecond}), summary("pleroma.repo.query.query_time", unit: {:native, :millisecond}), summary("pleroma.repo.query.queue_time", unit: {:native, :millisecond}), summary("pleroma.repo.query.idle_time", unit: {:native, :millisecond}), # VM Metrics summary("vm.memory.total", unit: {:byte, :kilobyte}), summary("vm.total_run_queue_lengths.total"), summary("vm.total_run_queue_lengths.cpu"), summary("vm.total_run_queue_lengths.io"), distribution( "oban.job.stop", event_name: [:oban, :job, :stop], measurement: :duration, tags: [:job], unit: {:native, :second}, reporter_options: [ buckets: [0.01, 0.025, 0.05, 0.1, 0.2, 0.5, 1, 2.5, 5, 10] ] ) ] end defp periodic_measurements do [] end end