+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: [0.01, 0.025, 0.05, 0.1, 0.2, 0.5, 1, 2.5, 5, 10]
+ ]
+ ),
+
+ # 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: [0.01, 0.025, 0.05, 0.1, 0.2, 0.5, 1, 2.5, 5, 10]
+ ]
+ ),
+ 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