@Marvin My prefect deployment stuck in not ready state when running with flow.serve. What could be the issue?

It seems your Prefect deployment being stuck in a "not ready" state when using

flow.serve

might be related to how your deployment is set up and how the

flow.serve

function works. Here's what I found: 1. Long-Running Process: The

flow.serve

function is meant to create and serve a deployment which is a long-running process. For remotely triggered or scheduled runs to be executed, your script with

flow.serve

must be actively running. If you stop the script or if it isn’t running properly, the deployment may not reach a ready state. 2. Prefect Deployment Mechanics: When running

prefect deploy

, several stages are completed: loading of the

prefect.yaml

file, running build steps, and more. If any of these steps encounter issues (e.g., missing configurations or errors in the Prefect YAML file), it could cause the deployment to not be ready. 3. Multiple Flows: If you are running multiple deployments concurrently, make sure all necessary configurations for each flow are correctly set. Prefect supports serving multiple flows, but it requires additional configurations. 4. Active Script Requirement: When using

flow.serve

, ensure that your script is continuously running. This method is typically employed when the script must remain active to manage deployments, which might not be suitable in environments where a continuously running script can't be ensured. You can read more about this in the Prefect documentation: - Prefect 2.x Deployment Guide - Prefect 3.x Deployment Guide If your deployment setup doesn't follow these guidelines, it might explain the issues you're facing. If you're still having issues after checking these aspects, you may want to ensure that everything in your environment is correctly set up, including network configurations, dependencies, and, perhaps, a healthy dose of patience. Sometimes computers just like to test our Zen.