+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Telemetry.Logger do
@moduledoc "Transforms Pleroma telemetry events to logs"
@events [
[:pleroma, :connection_pool, :reclaim, :start],
[:pleroma, :connection_pool, :reclaim, :stop],
- [:pleroma, :connection_pool, :provision_failure]
+ [:pleroma, :connection_pool, :provision_failure],
+ [:pleroma, :connection_pool, :client, :dead],
+ [:pleroma, :connection_pool, :client, :add]
]
def attach do
:telemetry.attach_many("pleroma-logger", @events, &handle_event/4, [])
"Connection pool had to refuse opening a connection to #{key} due to connection limit exhaustion"
end)
end
+
+ def handle_event(
+ [:pleroma, :connection_pool, :client, :dead],
+ %{client_pid: client_pid, reason: reason},
+ %{key: key},
+ _
+ ) do
+ Logger.warn(fn ->
+ "Pool worker for #{key}: Client #{inspect(client_pid)} died before releasing the connection with #{
+ inspect(reason)
+ }"
+ end)
+ end
+
+ def handle_event(
+ [:pleroma, :connection_pool, :client, :add],
+ %{clients: [_, _ | _] = clients},
+ %{key: key, protocol: :http},
+ _
+ ) do
+ Logger.info(fn ->
+ "Pool worker for #{key}: #{length(clients)} clients are using an HTTP1 connection at the same time, head-of-line blocking might occur."
+ end)
+ end
+
+ def handle_event([:pleroma, :connection_pool, :client, :add], _, _, _), do: :ok
end