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Graph/celery-broker-omission

AntiPattern

Celery App Misconfiguration

celery-broker-omission

Celery connects successfully at startup but silently fails to execute correctly because the Celery app is created without the expected broker configuration, often due to import/name collisions between a package folder and celery.py settings.

Node Details

Public graph metadata

Updated5/30/2026

Connections

30 linked nodes

MATCHESSolution

`omnimart@0.1.0 start /app/apps/frontend next start next: not found` — Frontend Dockerfile.

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Run vercel build --prod --token=***. Tension: Error: spawn pnpm ENOENT. Outcome: Install Vercel CLI.

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What happens if you `cd` into `/clients/testclient` and run `pnpm start` from that folder? — Turbo starts the development server without issues. Outcome: One possible explanation is that the server is actually crashing on launch.

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Install `"turbo": "1.4.4-canary.0"` — with turobrepo > 1.2.6. Tension: without success. Outcome: solve the issue.

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I had to change the LOCAL git config — git config --global user.name "Your Name" git config --global user.email "your.email@example.com". Tension: The problem was the LOCAL git config name and email did not match the one connected to vercel via "connect git account". Outcome: This is what their support told me to do and it solved the problem.

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If you have the vercel.json configuration file in your application, remove it. Tension: It is mostly likely the cause. Outcome: remove it.

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Failed to launch the browser process! — The application works correctly on my local but not on vercel. Tension: error while loading shared libraries: libnss3.so: cannot open shared object file: No such file or directory. Outcome: I have been able to fix this issue by changing the Node.js version to 18.x.

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vercel requires an `index.py` file — host my Flask application on Vercel. Tension: I used `server.py` as my main method. Outcome: I created an index.py file, that was a single line; `from server import app`.

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Always run Uvicorn from project root:. Tension: Add `--reload-dir` for extra folders (like your SQL hooks):. Outcome: python -m uvicorn main:app --reload --reload-dir path\to\hooks.

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Avoid letting the application’s argparse parse Uvicorn’s CLI arguments; instead handle your own arguments separately (or create and pass reload/host/port programmatically into uvicorn.run) so Uvicorn receives only its expected parameters.

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Outcome: CMD ["uv", "run", "retrofun.main:app_api", "--host", "0.0.0.0", "--port", "5555"].

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

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I switched to using directly Uvicorn with the following command — Previously, I used: `fastapi run --workers 4 app/main.py`. Tension: the redirection then fails. Outcome: `uvicorn your_app:app --host 0.0.0.0 --port 8000 --proxy-headers --forwarded-allow-ips "*"`.

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I tried adding a `startup.sh` file with this command: `gunicorn -w 4 -k uvicorn.workers.UvicornWorker main:app`, without any luck. — Azure App Service. Tension: without any luck.

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you might need to add the path to the module like so — Dockerfile. Tension: Depending on where your Dockerfile is in your structure, which is unclear. Outcome: CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "8000"].

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env.py file. Tension: Alembic doesn't seem to recognize my models and creates empty migrations. Outcome: from dbModels import dbChat, dbImage, dbLike # ADDED target_metadata = Base.metadata # ADDED.

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Inside Alembic's `env.py`, you can swap out the default engine — If you do not wish to run it from the command line. Tension: I did not document how to connect with google connector. Outcome: call its migration API inside your application.

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Use python -m uvicorn with the correct module path in ENTRYPOINT

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Try adding the TEAM ID in the export_options of the build_app action. — build_app(. Tension: No certificate for team 'XXXXX' matching 'Apple Distribution: COMPANY_NAME (XXXXX)' found. Outcome: teamID: TEAM_ID.

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adding Celery to your project — handling Stripe webhooks. Tension: This would allow for the processing of the webhook event payload to fail once (or more). Outcome: retry the operation.

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rename it and remove spaces, for example "Chat_101_APP" — The problem is because of the spaces in folder name "Chat 101 (APP)". Tension: Tailwind build failed error. Outcome: rename it and remove spaces, for example "Chat_101_APP".

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If you want to use Consumption Only container app environment — do NOT include the workloadProfile section in the subnet Bicep configuration. Tension: This means you don't need to add delegations.

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You have to delete the — from apps.py\accounts\apps\mysite. Outcome: name = "accounts".

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Adding it fixed my issue. Outcome: from .celery import app as celery_app.

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So after changing this line to the following, it worked for me. Outcome: app = Celery('projectSlackBot', broker=settings.BROKER_URL).

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Separate the Django web server and Celery worker into different containers or services

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Tension: raises ImproperlyConfigured exception if not found.

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Take a look at django-mailer — schedule it's management command through regular cron. Tension: It can replace the standard email backend and stores message queue in the db (so no Celery needed). Outcome: You just schedule it's management command through regular cron and that's basically it.

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use built-in Django commands to avoid third party integrations or external libraries — my_app/management/commands/my_scheduled_job.py. Tension: you can just configure your crontab command as usual. Outcome: 0 20 * * * python manage.py my_scheduled_job.

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Comment the whole table that is throwing an error and run makemigrations — when applying migrations. Tension: It is impossible to add a non-nullable field 'name' to table_name without specifying a default. Outcome: which will remove that table from migrations. Then, uncomment the table and re-run the makemigrations, which will fix your issue.

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