Merge branch 'featrue/job-monitor' into 'develop'

Add Pleroma.JobQueueMonitor

Closes #1274

See merge request pleroma/pleroma!1721
This commit is contained in:
lain 2019-10-04 12:52:11 +00:00
commit 27110793a7
7 changed files with 171 additions and 5 deletions

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@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
## [Unreleased]
### Added
- Refreshing poll results for remote polls
- Job queue stats to the healthcheck page
- Admin API: Add ability to require password reset
- Mastodon API: Account entities now include `follow_requests_count` (planned Mastodon 3.x addition)
- Pleroma API: `GET /api/v1/pleroma/accounts/:id/scrobbles` to get a list of recently scrobbled items

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@ -317,7 +317,8 @@ See [Admin-API](admin_api.md)
"active": 0, # active processes
"idle": 0, # idle processes
"memory_used": 0.00, # Memory used
"healthy": true # Instance state
"healthy": true, # Instance state
"job_queue_stats": {} # Job queue stats
}
```

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@ -42,6 +42,7 @@ def start(_type, _args) do
hackney_pool_children() ++
[
Pleroma.Stats,
Pleroma.JobQueueMonitor,
{Oban, Pleroma.Config.get(Oban)}
] ++
task_children(@env) ++

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@ -14,6 +14,7 @@ defmodule Pleroma.Healthcheck do
active: 0,
idle: 0,
memory_used: 0,
job_queue_stats: nil,
healthy: true
@type t :: %__MODULE__{
@ -21,6 +22,7 @@ defmodule Pleroma.Healthcheck do
active: non_neg_integer(),
idle: non_neg_integer(),
memory_used: number(),
job_queue_stats: map(),
healthy: boolean()
}
@ -30,6 +32,7 @@ def system_info do
memory_used: Float.round(:erlang.memory(:total) / 1024 / 1024, 2)
}
|> assign_db_info()
|> assign_job_queue_stats()
|> check_health()
end
@ -55,6 +58,11 @@ defp assign_db_info(healthcheck) do
Map.merge(healthcheck, db_info)
end
defp assign_job_queue_stats(healthcheck) do
stats = Pleroma.JobQueueMonitor.stats()
Map.put(healthcheck, :job_queue_stats, stats)
end
@spec check_health(Healthcheck.t()) :: Healthcheck.t()
def check_health(%{pool_size: pool_size, active: active} = check)
when active >= pool_size do

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@ -0,0 +1,78 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.JobQueueMonitor do
use GenServer
@initial_state %{workers: %{}, queues: %{}, processed_jobs: 0}
@queue %{processed_jobs: 0, success: 0, failure: 0}
@operation %{processed_jobs: 0, success: 0, failure: 0}
def start_link(_) do
GenServer.start_link(__MODULE__, @initial_state, name: __MODULE__)
end
@impl true
def init(state) do
:telemetry.attach("oban-monitor-failure", [:oban, :failure], &handle_event/4, nil)
:telemetry.attach("oban-monitor-success", [:oban, :success], &handle_event/4, nil)
{:ok, state}
end
def stats do
GenServer.call(__MODULE__, :stats)
end
def handle_event([:oban, status], %{duration: duration}, meta, _) do
GenServer.cast(__MODULE__, {:process_event, status, duration, meta})
end
@impl true
def handle_call(:stats, _from, state) do
{:reply, state, state}
end
@impl true
def handle_cast({:process_event, status, duration, meta}, state) do
state =
state
|> Map.update!(:workers, fn workers ->
workers
|> Map.put_new(meta.worker, %{})
|> Map.update!(meta.worker, &update_worker(&1, status, meta, duration))
end)
|> Map.update!(:queues, fn workers ->
workers
|> Map.put_new(meta.queue, @queue)
|> Map.update!(meta.queue, &update_queue(&1, status, meta, duration))
end)
|> Map.update!(:processed_jobs, &(&1 + 1))
{:noreply, state}
end
defp update_worker(worker, status, meta, duration) do
worker
|> Map.put_new(meta.args["op"], @operation)
|> Map.update!(meta.args["op"], &update_op(&1, status, meta, duration))
end
defp update_op(op, :enqueue, _meta, _duration) do
op
|> Map.update!(:enqueued, &(&1 + 1))
end
defp update_op(op, status, _meta, _duration) do
op
|> Map.update!(:processed_jobs, &(&1 + 1))
|> Map.update!(status, &(&1 + 1))
end
defp update_queue(queue, status, _meta, _duration) do
queue
|> Map.update!(:processed_jobs, &(&1 + 1))
|> Map.update!(status, &(&1 + 1))
end
end

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@ -9,7 +9,14 @@ defmodule Pleroma.HealthcheckTest do
test "system_info/0" do
result = Healthcheck.system_info() |> Map.from_struct()
assert Map.keys(result) == [:active, :healthy, :idle, :memory_used, :pool_size]
assert Map.keys(result) == [
:active,
:healthy,
:idle,
:job_queue_stats,
:memory_used,
:pool_size
]
end
describe "check_health/1" do

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@ -0,0 +1,70 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.JobQueueMonitorTest do
use ExUnit.Case, async: true
alias Pleroma.JobQueueMonitor
@success {:process_event, :success, 1337,
%{
args: %{"op" => "refresh_subscriptions"},
attempt: 1,
id: 339,
max_attempts: 5,
queue: "federator_outgoing",
worker: "Pleroma.Workers.SubscriberWorker"
}}
@failure {:process_event, :failure, 22_521_134,
%{
args: %{"op" => "force_password_reset", "user_id" => "9nJG6n6Nbu7tj9GJX6"},
attempt: 1,
error: %RuntimeError{message: "oops"},
id: 345,
kind: :exception,
max_attempts: 1,
queue: "background",
stack: [
{Pleroma.Workers.BackgroundWorker, :perform, 2,
[file: 'lib/pleroma/workers/background_worker.ex', line: 31]},
{Oban.Queue.Executor, :safe_call, 1,
[file: 'lib/oban/queue/executor.ex', line: 42]},
{:timer, :tc, 3, [file: 'timer.erl', line: 197]},
{Oban.Queue.Executor, :call, 2, [file: 'lib/oban/queue/executor.ex', line: 23]},
{Task.Supervised, :invoke_mfa, 2, [file: 'lib/task/supervised.ex', line: 90]},
{:proc_lib, :init_p_do_apply, 3, [file: 'proc_lib.erl', line: 249]}
],
worker: "Pleroma.Workers.BackgroundWorker"
}}
test "stats/0" do
assert %{processed_jobs: _, queues: _, workers: _} = JobQueueMonitor.stats()
end
test "handle_cast/2" do
state = %{workers: %{}, queues: %{}, processed_jobs: 0}
assert {:noreply, state} = JobQueueMonitor.handle_cast(@success, state)
assert {:noreply, state} = JobQueueMonitor.handle_cast(@failure, state)
assert {:noreply, state} = JobQueueMonitor.handle_cast(@success, state)
assert {:noreply, state} = JobQueueMonitor.handle_cast(@failure, state)
assert state == %{
processed_jobs: 4,
queues: %{
"background" => %{failure: 2, processed_jobs: 2, success: 0},
"federator_outgoing" => %{failure: 0, processed_jobs: 2, success: 2}
},
workers: %{
"Pleroma.Workers.BackgroundWorker" => %{
"force_password_reset" => %{failure: 2, processed_jobs: 2, success: 0}
},
"Pleroma.Workers.SubscriberWorker" => %{
"refresh_subscriptions" => %{failure: 0, processed_jobs: 2, success: 2}
}
}
}
end
end