Hi Prefect family! i want see DEBUG logs in UI I tried

prefect.config.logging.level='DEBUG'

prefect.config.debug=True

and

os.environ["PREFECT__LOGGING__LEVEL"]='DEBUG'

However, it doesn't work How can i set DEBUG log level?

Hi @jaehoon - logging levels must be set prior to importing the prefect package. There are many ways of doing this depending on your goals: • you can set the logging level for ad-hoc runs on the Run page in the Advanced Configuration settings • you can specify

env={"PREFECT__LOGGING__LEVEL": "DEBUG"}

on any RunConfig • you can set DEBUG level logs on your agent by starting your agent in an environment where

PREFECT__LOGGING__LEVEL=DEBUG

is set as an environment variable • you can start your agent with the

-e

PREFECT__LOGGING__LEVEL=DEBUG

flag Note that setting

os.environ

doesn’t do anything and isn’t good practice (Python can’t reset its own OS environment)

Oh, it works immediately, Thank you! I set agent option -f --log-level DEBUG Debug logs work in agent terminal, but I doesn't appear in Prefect Cloud UI what's the reason?

Agent logs are not stored in the backend at this time, but any run that agent submits should have debug level logs that are visible in the UI

I deeply appreciate your kindness I'm working at a Korean startup we find out prefect is a perfect fit for our situation Thank you for your supprot

Thank you for the kind words, and I’m glad you’re enjoying using Prefect! We’re always glad to help 😄