@Marvin im trying to run a flow from an ecs pool worker, the task getting picked up is telling me “prefect.exceptions.PrefectHTTPStatusError: Client error ‘404 Not Found’ for url ’http://ephemeral-prefect/api/flow_runs/XXXX” i removed my flow id for XXXX. I use Prefect Cloud, should I be seeing ephemeral-prefect?

It seems like there was an issue with checking the latest version of Prefect and searching the documentation. Could you please confirm the version of Prefect you are using? This will help me provide more specific guidance. Alternatively, if you're unsure, I can guide you on how to find this information. Regarding your error, encountering a "404 Not Found" usually indicates that the Prefect server is trying to reach an endpoint that doesn't exist. Seeing the URL "`ephemeral-prefect`" might suggest that you are dealing with a local deployment or a misconfiguration, especially if you expected it to connect to Prefect Cloud. In your setup, you should ensure that: 1. Your Prefect configuration is correctly pointing to the Prefect Cloud API. 2. The ECS agent is correctly configured to communicate with the Prefect Cloud. Please verify these configurations first, and let me know your Prefect version so I can provide more precise help!

@Marvin I deployed a flow using prefect 3.0.3. im trying to run a flow from an ecs pool worker, the task getting picked up is telling me “prefect.exceptions.PrefectHTTPStatusError: Client error ‘404 Not Found’ for url ’http://ephemeral-prefect/api/flow_runs/XXXX” i removed my flow id for XXXX. I use Prefect Cloud, should I be seeing ephemeral-prefect?

When using Prefect 3.0.3 with an ECS pool worker, seeing an error like “404 Not Found” for an unexpected URL such as

ephemeral-prefect

typically suggests a misconfiguration, especially since you are on Prefect Cloud. Here are some steps and resources that might help: 1. API URL Configuration: Double-check your Prefect configuration to ensure that your API URL is correctly set to interact with Prefect Cloud. You can manage this using the Prefect CLI:

bash
   prefect cloud login --workspace "<your-workspace-here>"

More details on managing your Prefect Cloud connection can be found on their documentation. 2. ECS Worker Configuration: Make sure your ECS worker is properly set up to interact with Prefect Cloud. Verify that the worker is configured to pull tasks from a Prefect work pool configured for Prefect Cloud. Instructions on setting up an ECS worker can be found here. If the incorrect endpoint (

ephemeral-prefect

) persists and you can't pinpoint the misconfiguration, review your Prefect and AWS configurations for any hardcoded or default values that might be pointing to a non-existent or local URL. If issues remain, consider reaching out to the Prefect community for further assistance or checking for updates on related GitHub issues. You can also cross-verify these steps with any existing setup documentation or guides from Prefect's resources.