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# prefect-community
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Andrei Tulbure
09/18/2022, 10:21 AMHello Everyone. Quick questions. My prefect flow failed and the logs are not helping that much. I get a long stack trace error without anything specific. How can I know that I have a problem with the infra, or with the code ? If you need more details please help me frame my question better.
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Anna Geller
09/18/2022, 2:05 PM
can you try running the same flow locally? if this works, you could determine whether this is a flow code or infra issue
if existing logs are not helpful, you can try enabling DEBUG logs e.g.
Copy code
prefect config set PREFECT_LOGGING_LEVEL=DEBUGa
Andrei Tulbure
09/18/2022, 4:52 PMIt runs locally, but it takes a slightly different route than via Prefect cloud
Where should I enable debug logs ? In the code, just after declaring my flow?
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Anna Geller
09/18/2022, 7:04 PM
On the execution layer
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Andrei Tulbure
09/19/2022, 8:07 AMsorry. in the code do you mean ?
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Anna Geller
09/19/2022, 10:07 AM
I meant on the agent/infrastructure block
e.g.:
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prefect config set PREFECT_LOGGING_LEVEL=DEBUG
prefect agent start -q yourqueue Copy code
from prefect.infrastructure import Process
process_block = Process(env={"PREFECT_LOGGING_LEVEL": "DEBUG"})
process_block.save("prod", overwrite=True)a
Andrei Tulbure
09/20/2022, 8:41 AMsolved the issue thanks a lot!
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