@Marvin my flow runs are suddenly always going to the

Late

state although the worker is free & available. I checked the work pool & work queue, they seem to configured correctly.

Your issue with flow runs entering the

Late

state despite having available workers might be related to a few potential causes: 1. Work Pool Configuration: Ensure that your work pool is correctly configured to handle the number of concurrent runs you expect. Work pools in Prefect 3.x allow you to manage how many runs can execute simultaneously. If your pool is misconfigured, it might not be dispatching tasks as expected. More on work pools can be found in the Prefect documentation. 2. Race Conditions or State Management Bugs: There are known issues with race conditions and state management in Prefect that could affect flow runs. For example, there have been reports of flows getting stuck in states due to race conditions or incorrect state transitions. You might want to review this GitHub issue for more details. 3. Flow Engine Dependencies: The flow engine's handling of dependencies and parameter validation can sometimes result in unexpected states if there are upstream task errors or parameter validation issues. Ensure that your flow dependencies are correctly resolved and parameters are validated. More details can be found in the flow engine source code. If none of these seem to resolve your issue, consider checking for any recent changes to your deployment or worker configurations that might have introduced this behavior. If the problem persists, you may want to raise a detailed issue on the Prefect GitHub repository with logs and configurations for further assistance.

@Marvin this doesn't help

To troubleshoot your issue with flow runs entering the

Late

state, consider the following: 1. Work Pool and Queue Configuration: Ensure that your work pool and work queues are correctly configured. Work pools manage the distribution of tasks, and work queues allow for prioritizing and controlling the concurrency of task execution. Check for any concurrency limits that might be restricting task execution. More details on work pools and queues can be found in the Prefect documentation. 2. Timeouts and Parameter Validation: The flow engine handles timeouts and parameter validation, which can affect the state of your flow runs. Ensure that your flow parameters are correctly validated and that there are no timeout issues causing the flows to enter a

Late

state. More information on handling timeouts and validation can be found in the flow engine source code. 3. Check for Known Issues: There might be known issues related to state management or race conditions affecting your flow runs. Reviewing recent issues on the Prefect GitHub repository could provide insights or solutions. If these steps do not resolve the issue, consider providing logs and configurations for deeper analysis or raising a detailed issue on the Prefect GitHub repository.