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79 lines
2.2 KiB
Elixir
79 lines
2.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.JobQueueMonitor do
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use GenServer
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@initial_state %{workers: %{}, queues: %{}, processed_jobs: 0}
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@queue %{processed_jobs: 0, success: 0, failure: 0}
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@operation %{processed_jobs: 0, success: 0, failure: 0}
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def start_link(_) do
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GenServer.start_link(__MODULE__, @initial_state, name: __MODULE__)
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end
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@impl true
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def init(state) do
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:telemetry.attach("oban-monitor-failure", [:oban, :failure], &handle_event/4, nil)
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:telemetry.attach("oban-monitor-success", [:oban, :success], &handle_event/4, nil)
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{:ok, state}
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end
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def stats do
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GenServer.call(__MODULE__, :stats)
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end
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def handle_event([:oban, status], %{duration: duration}, meta, _) do
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GenServer.cast(__MODULE__, {:process_event, status, duration, meta})
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end
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@impl true
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def handle_call(:stats, _from, state) do
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{:reply, state, state}
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end
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@impl true
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def handle_cast({:process_event, status, duration, meta}, state) do
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state =
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state
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|> Map.update!(:workers, fn workers ->
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workers
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|> Map.put_new(meta.worker, %{})
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|> Map.update!(meta.worker, &update_worker(&1, status, meta, duration))
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end)
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|> Map.update!(:queues, fn workers ->
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workers
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|> Map.put_new(meta.queue, @queue)
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|> Map.update!(meta.queue, &update_queue(&1, status, meta, duration))
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end)
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|> Map.update!(:processed_jobs, &(&1 + 1))
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{:noreply, state}
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end
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defp update_worker(worker, status, meta, duration) do
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worker
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|> Map.put_new(meta.args["op"], @operation)
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|> Map.update!(meta.args["op"], &update_op(&1, status, meta, duration))
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end
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defp update_op(op, :enqueue, _meta, _duration) do
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op
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|> Map.update!(:enqueued, &(&1 + 1))
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end
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defp update_op(op, status, _meta, _duration) do
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op
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|> Map.update!(:processed_jobs, &(&1 + 1))
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|> Map.update!(status, &(&1 + 1))
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end
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defp update_queue(queue, status, _meta, _duration) do
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queue
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|> Map.update!(:processed_jobs, &(&1 + 1))
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|> Map.update!(status, &(&1 + 1))
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end
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end
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