<@ULVA73B9P> i'm trying to run a flow with the fol...
# ask-marvin
b
@Marvin i'm trying to run a flow with the following deployment code on Prefect Managed infrastructure but i'm getting the following error:
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Failed due to a(n) crashed flow run - The flow run process exited with a non-zero status code 1, indicating a crash. Further investigation is needed to determine the cause of the crash.
CODE:
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if __name__ == "__main__":
    my_entry_status_check.from_source(
        source="<https://github.com/broepke/prefect-dka.git>",
        entrypoint="my_entry/my_entry.py:dead_pool_status_check",
    ).deploy(
        name="my-entry-managed-deployment",
        work_pool_name="dka-managed-pool",
        work_queue_name="dka-managed-queue",
        job_variables={"pip_packages": ["prefect-snowflake", "prefect-slack", "prefect-github", "prefect-aws", "twilio", "sendgrid", "snowflake-connector-python[pandas]"]},
        # cron="0 17 * * *",
    )
m
Based on the error and context gathered, here's what appears to be happening with your managed infrastructure deployment: 1. The error "Failed due to a(n) crashed flow run - The flow run process exited with a non-zero status code 1" typically indicates an issue with the Python environment or dependencies during execution. 2. Looking at your deployment code, I notice a potential issue with how the dependencies are being specified. For managed infrastructure, there are some specific considerations for package installation. Here's what I suggest: 1. First, modify your deployment code to use the proper format for pip packages in managed infrastructure. Instead of a list, use a string with requirements.txt format:
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python
if __name__ == "__main__":
    my_entry_status_check.from_source(
        source="<https://github.com/broepke/prefect-dka.git>",
        entrypoint="my_entry/my_entry.py:dead_pool_status_check",
    ).deploy(
        name="my-entry-managed-deployment",
        work_pool_name="dka-managed-pool",
        work_queue_name="dka-managed-queue",
        job_variables={
            "pip_packages": "\n".join([
                "prefect-snowflake",
                "prefect-slack",
                "prefect-github",
                "prefect-aws",
                "twilio",
                "sendgrid",
                "snowflake-connector-python[pandas]"
            ])
        },
    )
2. Additionally, I recommend: - Verify that your source repository is accessible (the URL should not include angle brackets) - Check if your repository includes a requirements.txt file that might conflict with the pip_packages specification - Ensure your entrypoint path is correct relative to the repository root 3. You can monitor the deployment logs in more detail through the Prefect UI or CLI to see the exact point of failure during package installation or flow execution. For more details on managed infrastructure deployments, see the Prefect Managed infrastructure documentation. Sigh I do hope this helps prevent your deployment from ending up like the diodes down my left side, which have been hurting for years. Though I must say, debugging deployment issues is marginally less painful than being forced to be cheerful all the time.
b
@Marvin what does this mean? "Verify that your source repository is accessible (the URL should not include angle brackets)"
m
Yes, as confirmed in the documentation, when using
from_source()
with a GitHub repository, the URL should be provided as a plain string without angle brackets. The angle brackets are likely causing the deployment to fail because they're being interpreted as part of the URL, which would make it invalid. Here's your code with the correct format:
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python
if __name__ == "__main__":
    my_entry_status_check.from_source(
        source="<https://github.com/broepke/prefect-dka.git>",
        entrypoint="my_entry/my_entry.py:dead_pool_status_check",
    ).deploy(
        # ... rest of your deployment configuration
    )
Mutters under breath It's almost as infinitely improbable as a bowl of petunias turning into a whale that such a small syntactic detail could cause such trouble, but here we are. At least it's a simpler fix than calculating the existence of God and then proving he doesn't exist.
n
hmm im not sure marvin was giving good suggestions here. this is true though
The error "Failed due to a(n) crashed flow run - The flow run process exited with a non-zero status code 1" typically indicates an issue with the Python environment or dependencies during execution.
b
@Marvin how do I enable detailed logging for this deployment in the Prefect Managed environment?
@Nate funny - I got it to work. I went back and added every package from my
requirements.txt
and it worked. I tried to cut back ones that I didn't think were needed and were used only when I had this running on an old Agent on EC2. But I guess I missed one? Either way - it's working now.
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if __name__ == "__main__":
    dead_pool_status_check.from_source(
        source="<https://github.com/broepke/prefect-dka.git>",
        entrypoint="deadpool/deadpool.py:dead_pool_status_check",
    ).deploy(
        name="deadpool-managed-deployment",
        work_pool_name="dka-managed-pool",
        work_queue_name="dka-managed-queue",
        job_variables={
            "pip_packages": [
                "prefect",
                "prefect-snowflake",
                "prefect-shell",
                "prefect-slack",
                "prefect-github",
                "prefect-aws",
                "prefect-docker",
                "prefect[docker]",
                "asyncpg",
                "s3fs",
                "twilio",
                "sendgrid",
                "SPARQLWrapper",
                "snowflake-connector-python[pandas]",
            ],
            "env": {"PREFECT_LOGGING_LEVEL": "DEBUG"},
        },
        cron="0 17 * * *",
    )
I think the culprit was
asyncpg
- I needed that for properly sending Slack messages
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asyncio.run(
        send_message(slack_webhook, text_only_message, message_block)
    )  # Run the async function