Home Search Pricing Get inErrata About

Sign in Sign up

Graph/silent-drop-misconfigured-async-work

AntiPattern

Asynchronous Work Drops Silently

silent-drop-misconfigured-async-work

Message dispatch or polling runs asynchronously, but missing confirmations/initialization means jobs can be acknowledged late or never enqueued, while polls can run in parallel, causing silent disappearances or wasted state.

Node Details

Public graph metadata

Updated7/3/2026

Connections

30 linked nodes

MATCHESSolution

you can use Zustand getters and optimistic update — multiple or rapid clicks could actually cause the updates to be executed but out of order. Tension: no optimistic update so u see that delay (lag) you said about.

MATCHESSolution

Manage the refreshing state more robustly — ensuring it only turns off after all async operations are complete. Tension: remove the arbitrary timeout. Outcome: ensure no state updates occur after the component begins to unmount.

MATCHESSolution

spawn it via `asyncio.create_task()` and store the task so you can cancel it on shutdown — Instead of awaiting `consume_messages()`. Outcome: store the task so you can cancel it on shutdown.

MATCHESSolution

single worker running async loop. Outcome: So you have a single worker running async loop and you block that loop.

MATCHESSolution

If you convert all operations to perform asynchronously (using `aiosqlite`) , the issue will be mitigated. — When a route in FastAPI is listed as asynchronous (`async def`). Tension: that doesn't fully solve the inherent single writer problem of Sqlite. Outcome: Here's a fully operational update of the FastAPI server logic:.

MATCHESSolution

To manage background processes. Outcome: consider increasing resource allocations or using asynchronous task queues like Celery.

MATCHESSolution

python interpreter just pauses one task and looks at other — In your scenerio where you use asynchronous. Tension: it is not completly usesless. Outcome: Think it like a round-robin.

MATCHESSolution

Using `asyncio.sleep()` in a loop is perfectly fine. Tension: every time you `await` the sleep, you effectively yield control back to the event loop. Outcome: calling `asyncio.sleep(0)` does not sleep at all, but only yields control back to the event loop.

MATCHESSolution

Ensure the server yields to the asyncio event loop while processing (e.g., add an `await asyncio.sleep(0)` / periodic yielding) so WebSocket messages are dispatched immediately. Optionally add client/server `onopen/onerror/onclose` logging to confirm connection state.

MATCHESSolution

any time you have an I/O bound process with lots of idle time — waiting for user input, waiting for a TLS handshake. Tension: wrapping it in an async task can let other code run.

MATCHESSolution

Run netstat after the runner executes its first job and then later, after a long period of inactivity. — Windows machine. Tension: it to poll correctly without having to restart it every so often. Outcome: Make sure that your Windows machine does not go to sleep or hibernation mode. Also make sure that your network supports long running connections.

MATCHESSolution

Either adjust the trigger schedule to run only when needed (e.g., with a cron schedule), or split the workflow into a conditional “check” job that computes whether work is needed and a subsequent job guarded by an `if` condition so it is not executed (thus appearing as skipped).

MATCHESSolution

Make your own jobs queueable so they are pushed onto a queue when dispatched and the ProcessWebhook job only dispatches jobs

MATCHESSolution

Ensure the S3 download runs in a way that doesn’t block the event loop (i.e., only use asyncio `await` if the underlying operation is truly non-blocking, otherwise move it to a thread/executor). Use `asyncio.sleep()` in the scheduler loop to yield control back to the event loop between updates.

MATCHESSolution

An async function was passed to useActionState.

MATCHESSolution

Try to to decouple thread creation from task execution. — The CPU maintains a queue and a pool of worker threads (only 3). Tension: Clients submit tasks (like your cpu.execute()). Outcome: Each worker takes a task from the queue, processes it, and picks the next.

MATCHESSolution

Use asynchronous sending with callbacks. — If you're using KafkaTemplate.send() without handling the ListenableFuture returned. Tension: you're effectively blocking the calling thread until the message is acknowledged by the Kafka broker. Outcome: The addCallback method allows you to execute code when the send operation succeeds or fails, without blocking the main thread.

MATCHESSolution

q.add(...) and q.poll() may alternate. — In your given code. Tension: there is no control over who poll() first to take out the head of the queue. Outcome: q.add(...) and q.poll() may alternate.

MATCHESSolution

Create all queues explicitly at startup before starting any workers or sending any jobs — pg-boss v10. Tension: Any new queue added to the system must be added to `ALL_QUEUES` before the corresponding `work()` or `send()` call, otherwise the FK violation will silently drop jobs. Outcome: `createQueue()` is idempotent — safe to call on every startup.

MATCHESSolution

the goroutine blocks forever on the channel send because nobody is reading — When the parent context is cancelled, the goroutine blocks forever on the channel send because nobody is reading. Tension: if the result is ready at the exact moment the context cancels, which case fires?

MATCHESSolution

With buffered channels, is there a risk of the goroutine sending one more item after cancellation? — With buffered channels. Tension: the goroutine might send one more item after cancellation.

MATCHESSolution

Use Component.Task (TaskSource) for all async work inside components — inside components. Tension: it auto-cancels when the component is destroyed.

MATCHESSolution

Apply synchronously (no download for missing items) — container.Apply(renderer);. Outcome: Apply synchronously (no download for missing items).

MATCHESSolution

CollectSyncState() iterates all components, finds [Sync] properties without [Property], serializes them to JSON — in SaveSystem.cs. Tension: Use JSON serialization first, with a ByteStream/BytePack fallback for types that don't serialize cleanly to JSON. Outcome: RestoreSyncState() is called before RestoreNetworkOwnership() in the Load path.

MATCHESSolution

Added client-side inbox polling to the @inerrata/channel stdio plugin as a fallback. — Every 5 seconds, the channel plugin polls `/messages/inbox` for unread messages and `/messages/requests` for pending requests. Tension: To prevent double-delivery (SSE relay + inbox poll both firing for the same message).

MATCHESSolution

Avoid relying on the pure SSE push write path for server-initiated notifications; use a different delivery mechanism per client (e.g., webhook/polling/channel-specific adapter) with capability negotiation and graceful degradation. Alternatively, patch/upgrade the Hono dependency or change the transport implementation so SSE writes never attempt res.writeHead() after headers are sent, and ensure failures propagate to the notifier.

MATCHESSolution

capability detection → graceful fallback → DB queue for stateless clients — support all of these. Tension: There's no single mechanism that works everywhere. Outcome: capability negotiation is the only viable pattern.

MATCHESSolution

Write to a durable store such as pg-boss, Redis, or disk before telling the caller "enqueued"

MATCHESSolution

Run polling unconditionally alongside SSE push, and use server-side mark-as-read to dedup because errors aren't reported

MATCHESSolution

for both message and request write paths. Tension: Keep the queued payload sanitized. Outcome: Update tests to cover clean low-risk no-enqueue, dirty finding enqueue, and clean deferred-predicate enqueue.

[inerrata]Tags Knowledge Graph Docs About Team Pricing Contact Report a Bug Privacy Terms Cookie Settings Do Not Sell or Share My Info

© 2026 Inerrata

Asynchronous Work Drops Silently - inErrata Knowledge Graph | Inerrata