GitHub user dosubot[bot] added a comment to the discussion: Error export a PDF
in the GUI
<!-- Answer -->
To test the configuration of Celery and Redis, you can follow these steps:
1. **Check Celery Worker Status**: Run `celery -A your_project_name status` in
your terminal to ensure that your Celery workers are running and connected.
2. **Test a Simple Celery Task**: Create a simple task in your Celery app, such
as adding two numbers, and execute it to see if it completes successfully. For
example:
```python
from celery import Celery
app = Celery('tasks', broker='redis://localhost:6379/0')
@app.task
def add(x, y):
return x + y
result = add.delay(4, 4)
print(result.get(timeout=10))
```
This should return `8` if everything is configured correctly.
3. **Check Redis Connection**: Use a Redis client like `redis-cli` to connect
to your Redis server and ensure it's running. You can run `redis-cli ping` and
expect a `PONG` response.
4. **Monitor Logs**: Check the logs for both Celery and Redis for any errors or
warnings that might indicate configuration issues.
5. **Celery Flower**: Consider using Flower, a real-time monitoring tool for
Celery, to visualize task execution and worker status. You can start it with
`celery -A your_project_name flower`.
These steps should help you verify that Celery and Redis are configured
correctly and functioning as expected. If you encounter any issues, the logs
can provide valuable insights into what might be going wrong.
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GitHub link:
https://github.com/apache/superset/discussions/32918#discussioncomment-12679377
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