Local server randomly not working about prefect HOT 5 OPEN

It finally works by doing these steps:

1. Deleting every prefect python packages
2. Deleting the .prefect folder
3. Reinstalling prefect with pip3 install -U prefect --pre

note: I didn't used the --pre to install it earlier.

I now have the latest version of prefect

% prefect version  
Version:             3.0.0rc17
API version:         0.8.4
Python version:      3.11.5
Git commit:          a2572677
Built:               Wed, Aug 14, 2024 11:24 AM
OS/Arch:             darwin/arm64
Profile:             devtest
Server type:         server
Pydantic version:    2.8.2

And the dashboard is reachable!

from prefect.

Hey @dqueruel-fy!

If you want to get more logging from your local server, you can set PREFECT_LOGGING_SERVER_LEVEL to DEBUG either as an environment variable or in your Prefect profile with prefect config set PREFECT_LOGGING_SERVER_LEVEL=DEBUG. The output from that increased log level will hopefully give us more info about why you aren't able to access the UI of your local server.

from prefect.

Hey @dqueruel-fy !

If you want to get more logging from your local server, you can set PREFECT_LOGGING_SERVER_LEVEL to DEBUG either as an environment variable or in your Prefect profile with prefect config set PREFECT_LOGGING_SERVER_LEVEL=DEBUG. The output from that increased log level will hopefully give us more info about why you aren't able to access the UI of your local server.

Thanks @desertaxle for the quick answer !
I've tried it but I don't see any difference in the logs. I remember that, when it was working, I add more log/warnings after starting the local server, but now there is no logs at all.

 ~ % prefect config set PREFECT_LOGGING_SERVER_LEVEL=DEBUG
Set 'PREFECT_LOGGING_SERVER_LEVEL' to 'DEBUG'.
Updated profile 'dev'.
 ~ % prefect server start

 ___ ___ ___ ___ ___ ___ _____ 
| _ \ _ \ __| __| __/ __|_   _| 
|  _/   / _|| _|| _| (__  | |  
|_| |_|_\___|_| |___\___| |_|  

Configure Prefect to communicate with the server with:

    prefect config set PREFECT_API_URL=http://127.0.0.1:4200/api

View the API reference documentation at http://127.0.0.1:4200/docs

Check out the dashboard at http://127.0.0.1:4200

I've tested it on another port, but I get the same issue:

prefect server start --port 6000   

 ___ ___ ___ ___ ___ ___ _____ 
| _ \ _ \ __| __| __/ __|_   _| 
|  _/   / _|| _|| _| (__  | |  
|_| |_|_\___|_| |___\___| |_|  

Configure Prefect to communicate with the server with:

    prefect config set PREFECT_API_URL=http://127.0.0.1:6000/api

View the API reference documentation at http://127.0.0.1:6000/docs

Check out the dashboard at http://127.0.0.1:6000

from prefect.

This is finally due to the combination of prefect and prefect-ray. Without prefect-ray, prefect local server is working properly.

The current setup that is working for me for both prefect and prefect-ray is:

• prefect version 3.0.0rc10
• prefect-ray version prefect-ray-0.4.0rc2 (I haven't specified it in pip).

I haven't tried all rc though but the latest ones rc17, rc18 seems to have issues with prefect-ray from what I have tested.

from prefect.

Interesting! I can also reproduce with the most recent RC versions of prefect and prefect-ray. I suspect this has something to do with prefect-ray misbehaving when we load integrations.

from prefect.