I’ve been running my Phoenix app with Oban (not Pro) inside my devcontainer recently, but every 2nd to 3rd time when I make a code change and need to recompile 200+ modules, the Oban.Registry crashes which then terminates my application.
This is a typical output of such a crash:
Compiling 273 files (.ex)
[error] GenServer {Oban.Registry, {Oban, Oban.Stager}} terminating
** (UndefinedFunctionError) function MyApp.Repo.transaction/2 is undefined (module MyApp.Repo is not available)
(MyApp 1.3.61) MyApp.Repo.transaction(#Function<4.61619042/0 in Oban.Stager.stage_and_notify/2>, [prefix: "public", log: false, oban: true, telemetry_options: [oban_conf: %Oban.Config{dispatch_cooldown: 5, engine: Oban.Engines.Basic, get_dynamic_repo: nil, insert_trigger: true, log: false, name: Oban, node: "16a78d4bc670", notifier: {Oban.Notifiers.PG, []}, peer: {Oban.Peers.Database, []}, plugins: [{Oban.Plugins.Cron, [crontab: []]}, {Oban.Plugins.Pruner, []}], prefix: "public", queues: [default: [limit: 10], backups: [limit: 5], social_feeds: [limit: 5]], repo: MyApp.Repo, shutdown_grace_period: 15000, stage_interval: 1000, testing: :disabled}]])
(oban 2.21.1) lib/oban/repo.ex:156: Oban.Repo.transaction/4
(oban 2.21.1) lib/oban/stager.ex:85: Oban.Stager.stage_and_notify/2
(oban 2.21.1) lib/oban/stager.ex:59: anonymous fn/2 in Oban.Stager.handle_info/2
(telemetry 1.4.1) /workspace/deps/devcontainer/telemetry/src/telemetry.erl:359: :telemetry.span/3
(oban 2.21.1) lib/oban/stager.ex:58: Oban.Stager.handle_info/2
(stdlib 7.2.1) gen_server.erl:2434: :gen_server.try_handle_info/3
(stdlib 7.2.1) gen_server.erl:2420: :gen_server.handle_msg/3
(stdlib 7.2.1) proc_lib.erl:333: :proc_lib.init_p_do_apply/3
Last message: :stage
State: %Oban.Stager{conf: %Oban.Config{dispatch_cooldown: 5, engine: Oban.Engines.Basic, get_dynamic_repo: nil, insert_trigger: true, log: false, name: Oban, node: "16a78d4bc670", notifier: {Oban.Notifiers.PG, []}, peer: {Oban.Peers.Database, []}, plugins: [{Oban.Plugins.Cron, [crontab: []]}, {Oban.Plugins.Pruner, []}], prefix: "public", queues: [default: [limit: 10], backups: [limit: 5], social_feeds: [limit: 5]], repo: MyApp.Repo, shutdown_grace_period: 15000, stage_interval: 1000, testing: :disabled}, timer: #Reference<0.2559755388.3220963335.234290>, interval: 1000, limit: 5000, mode: :global}
*** -> The error above repeats a few times
[notice] Application my_app exited: shutdown
I already tried wrapping the Oban Supervisor in my own Supervisor that has a higher restart retry count and also an exponential backoff for restarting the Oban.Registry, but that didn’t help either.
I don’t experience this outside of my devcontainer, so I’m not sure what causes this.
Thank you!
Maybe this is related to me fetching directly from Oban’s master branch and having to add 
. Kidding, that’s what I thought might happen when I mentioned " The 
