Define a queue for heavy writes

config/config.exs

@@ -80,7 +80,7 @@ config :error_tracker,
 
 config :music_library, Oban,
   engine: Oban.Engines.Lite,
-  queues: [default: 10],
+  queues: [default: 10, heavy_writes: 1],
   repo: MusicLibrary.BackgroundRepo
 
 config :music_library, MusicLibrary.ErrorRepo, priv: "priv/error_repo"

lib/music_library/worker/fetch_artist_image.ex

@@ -1,5 +1,5 @@
 defmodule MusicLibrary.Worker.FetchArtistImage do
-  use Oban.Worker, queue: :default, max_attempts: 3
+  use Oban.Worker, queue: :heavy_writes, max_attempts: 3
 
   @impl Oban.Worker
   def perform(%Oban.Job{args: %{"id" => artist_id}}) do

lib/music_library/worker/refresh_cover.ex

@@ -1,5 +1,5 @@
 defmodule MusicLibrary.Worker.RefreshCover do
-  use Oban.Worker, queue: :default, max_attempts: 3
+  use Oban.Worker, queue: :heavy_writes, max_attempts: 3
 
   @impl Oban.Worker
   def perform(%Oban.Job{args: %{"id" => record_id}}) do