akkoma/lib/pleroma/web/telemetry.ex

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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()},
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{TelemetryMetricsPrometheus, metrics: metrics(), plug_cowboy_opts: [ip: {127, 0, 0, 1}]}
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]
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: [
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buckets: [0.1, 0.2, 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250, 500, 1000]
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]
),
# Database Time Metrics
distribution(
"pleroma.repo.query.total_time",
# event_name: [:pleroma, :repo, :query, :total_time],
measurement: :total_time,
unit: {:native, :millisecond},
reporter_options: [
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buckets: [0.1, 0.2, 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250, 500, 1000]
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]
),
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(
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"oban_job_completion",
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event_name: [:oban, :job, :stop],
measurement: :duration,
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tags: [:worker],
tag_values: fn tags -> Map.put(tags, :worker, tags.job.worker) end,
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unit: {:native, :second},
reporter_options: [
buckets: [0.01, 0.025, 0.05, 0.1, 0.2, 0.5, 1, 2.5, 5, 10]
]
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),
distribution(
"oban_job_exception",
event_name: [:oban, :job, :exception],
measurement: :duration,
tags: [:worker],
tag_values: fn tags -> Map.put(tags, :worker, tags.job.worker) end,
unit: {:native, :second},
reporter_options: [
buckets: [0.01, 0.025, 0.05, 0.1, 0.2, 0.5, 1, 2.5, 5, 10]
]
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)
]
end
defp periodic_measurements do
[]
end
end