56 lines
1.8 KiB
Elixir
56 lines
1.8 KiB
Elixir
|
defmodule PodcastFeedWeb.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()}
|
||
|
|
]
|
||
|
|
|
||
|
|
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}
|
||
|
|
),
|
||
|
|
|
||
|
|
# Database Metrics
|
||
|
|
summary("podcast_feed.repo.query.total_time", unit: {:native, :millisecond}),
|
||
|
|
summary("podcast_feed.repo.query.decode_time", unit: {:native, :millisecond}),
|
||
|
|
summary("podcast_feed.repo.query.query_time", unit: {:native, :millisecond}),
|
||
|
|
summary("podcast_feed.repo.query.queue_time", unit: {:native, :millisecond}),
|
||
|
|
summary("podcast_feed.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")
|
||
|
|
]
|
||
|
|
end
|
||
|
|
|
||
|
|
defp periodic_measurements do
|
||
|
|
[
|
||
|
|
# A module, function and arguments to be invoked periodically.
|
||
|
|
# This function must call :telemetry.execute/3 and a metric must be added above.
|
||
|
|
# {PodcastFeedWeb, :count_users, []}
|
||
|
|
]
|
||
|
|
end
|
||
|
|
end
|